Lexus NX: Fail-safe Chart

FAIL-SAFE CHART

FAIL-SAFE FUNCTION

(a) When communication fails in any of the CAN bus wires (communication wires), a fail-safe function(s) operates. The fail-safe function that is specified for each system operates to prevent those systems from malfunctioning.

(b) Effects on each system when communication is impossible (for further details, see the pages for each system).

Function

  1. Control Master
  2. System Related

Behavior during CAN Failure

Vehicle Behavior

Indicator and Buzzer

Diagnostic Trouble Code

EPB*: Abbreviation for electric parking brake

Air Conditioning Control

  • Adjusts the engine speed by performing idle up, etc.
  • Adjusts the air temperature, airflow mode and airflow volume according to the engine coolant temperature.
  • Adjusts the engine coolant temperature compensation map information and switches the value for determining whether the compressor is locked according to the engine type.
  1. Air conditioning amplifier assembly
  2. Hybrid vehicle control ECU
  • While the power switch is on (IG), control is performed with the engine coolant temperature set to the default value of 80°C (176°F).
  • While the power switch is on (IG), control is performed with the default setting for the engine type (the default setting depends on the vehicle type).

Nothing

U0293

Simple Load Control

(Limits simple electrical load control according to the load control level.)

  1. Air conditioning amplifier assembly
  2. Power steering ECU assembly

While the power switch is on (IG), previous values are maintained (during a reset, there is no load control).

Nothing

U0131

Panel Dimming Control

(Outputs dimming information to the LIN panel according to the display dimming information.)

  1. Air conditioning amplifier assembly
  2. Main body ECU (multiplex network body ECU)

While the power switch is on (IG), previous values are maintained (during a reset, dimming control is performed).

Cannot switch between dimming states.

U0142

Destination Determination Control

(Switches the A/C control pattern according to the destination information.)

  1. Air conditioning amplifier assembly
  2. Main body ECU (multiplex network body ECU)

While the power switch is on (IG), previous values are maintained.

Nothing

U0142

Solar Calibration Control

(Calibrates air conditioning control using the value from the solar sensor.)

  1. Air conditioning amplifier assembly
  2. Main body ECU (multiplex network body ECU)

While the power switch is on (IG), previous values are maintained.

Nothing

U0142

Outside Temperature Compensation Control

(Changes the air conditioning system operation state and adjusts the outside temperature display value according to the vehicle speed.)

  1. Air conditioning amplifier assembly
  2. Combination meter assembly

While the power switch is on (IG), control is performed with the default vehicle speed value (0 km/h [0 mph]).

  • The accuracy of the displayed outside temperature becomes less reliable.
  • The proper airflow volume level for the air conditioning system may be incorrect (while the power switch is on [IG]).

U0155

Air Conditioning Eco Control

(Eco-mode control is performed.)

  1. Air conditioning amplifier assembly
  2. Hybrid vehicle control ECU

While the power switch is on (IG), previous values are maintained (after a reset, the system stays in its normal state of operation).

Nothing

-

Remote Start Control

(Controls the air conditioning operation state according to remote start information.)

  1. Air conditioning amplifier assembly
  2. Bus buffer ECU

While the power switch is on (IG), remote start control is not performed.

While the power switch is on (IG), the A/C system does not begin operation according to the remote start information.

-

Meter Display Request

(Sends requests to the combination meter to illuminate various indicators and display various items on the multi-information display.)

  1. Combination meter assembly
  2. Hybrid vehicle control ECU

Nothing

The engine coolant temperature, fuel consumption values, etc., are not properly displayed.

-

Electric Fan

(Controls the electric fan motor by air conditioning request.)

  1. ECM
  2. Air conditioning amplifier assembly

Electric fan operates in fail-safe mode.

Nothing

-

Driving Control

(Controls the engine and magnetic clutch after receiving engine information.)

  1. Hybrid vehicle control ECU
  2. ECM

Vehicle uses motor.

The MIL illuminates.

U0100

Vehicle Damage Determination

(Determines whether there was a collision according to the airbag signal.)

  1. Hybrid vehicle control ECU
  2. Airbag ECU assembly

Driving is normal.

Nothing

U0151

Air Conditioning Control

(Assists with passing signals between the air conditioning amplifier assembly and air conditioning inverter.)

  1. Air conditioning amplifier assembly
  2. Air conditioning amplifier assembly

Driving is normal.

Nothing

  • U0140
  • U0164

Regenerative Brake Coordinate Control

(Attempts to increase the amount of energy recovered by coordinating control with the electronically controlled brake system.)

  1. Brake booster with master cylinder assembly (skid control ECU)
  2. Brake booster with master cylinder assembly (skid control ECU)

Regenerative braking is prohibited.

Nothing

  • U0126
  • U0129
  • U1107

Electronic Power Steering System

(Calculates the current to be used for the steering assist according to the torque sensor value and vehicle speed, and then operates the motor.)

  1. Power steering ECU assembly
  2. ECM, Steering sensor, Brake booster with master cylinder assembly (skid control ECU), Hybrid vehicle control ECU
  • Electronic power steering does not operate.
  • Control is performed temporarily with the steering assist amount set to that used when the vehicle speed is 100 km/h (62 mph).
  • The steering feel becomes worse (compensation control using the steering angle is stopped).

The electronic power steering warning light (yellow) illuminates.

  • U0129
  • U0293

Pre-collision System

(Recognizes obstacles and provides a warning, brake assist and collision avoidance braking.)

  1. Forward recognition camera
  2. Millimeter wave radar sensor assembly, Brake booster with master cylinder assembly (skid control ECU), Airbag ECU assembly, Steering sensor, Hybrid vehicle control ECU

Cancels the pre-collision brake assist, pre-collision warning buzzer and pre-collision brake control.

  • The PCS warning light illuminates.
  • Displayed on multi-information display.
  • U012587
  • U012687
  • U012987
  • U023587
  • U023A87
  • U029387
  • U030051
  • U030057
  • U041881

Dynamic Radar Cruise Control

(Enables recognition, determination and tracking of the preceding vehicle at an appropriate vehicle-to-vehicle distance until it stops with the millimeter wave radar sensor assembly, airbag sensor assembly, steering sensor, etc., and drives the vehicle constantly at a set speed when there is no preceding vehicle forward.)

  1. Forward recognition camera
  2. Millimeter wave radar sensor assembly, Airbag ECU assembly, Steering sensor, Hybrid vehicle control ECU, Combination meter assembly, Parking brake ECU assembly

Cruise control system is stopped.

Displayed on multi-information display.

  • U012587
  • U012687
  • U012987
  • U015587
  • U029387
  • U110687

Lane Departure Alert

(Alerts the driver of the possibility of lane departure and performs steering control to assist the vehicle in returning to the center of the road.)

  1. Forward recognition camera
  2. Millimeter wave radar sensor assembly, Combination meter assembly, Hybrid vehicle control ECU, Brake booster with master cylinder assembly (skid control ECU), Power steering ECU assembly, Airbag ECU assembly, Steering sensor

Control stops.

  • The lane departure alert/lane tracing assist indicator light illuminates.
  • Displayed on multi-information display.
  • U012587
  • U012687
  • U012987
  • U013187
  • U015587
  • U023587
  • U030051
  • U029387
  • U030057

Lane Tracing Assist

(Recognizes the lane with the forward recognition camera and assists the vehicle in driving the center of the road.)

Road Sign Assist

(Recognizes the sign with the forward recognition camera and displays the recognized sign on the combination meter assembly.)

  1. Forward recognition camera
  2. Hybrid vehicle control ECU, Airbag ECU assembly, Brake booster with master cylinder assembly (skid control ECU), Main body ECU (multiplex network body ECU), Combination meter assembly
  • Stops the road sign display.
  • The warning is stopped.

Displayed on multi-information display.

  • U012587
  • U012987
  • U014087
  • U015587
  • U029387

TMN

(Detects that the preceding vehicle has started off with the forward recognition camera and millimeter wave radar sensor assembly, and then notifies the driver.)

  1. Forward recognition camera
  2. Millimeter wave radar sensor assembly, Combination meter assembly, Hybrid vehicle control ECU, Brake booster with master cylinder assembly (skid control ECU)

Stops preceding vehicle start notification.

Displayed on multi-information display.

  • U012987
  • U015587
  • U023587
  • U029387

Automatic High Beam

(Uses the front camera to recognize headlights and taillights and sends that target information to the control ECU.)

  1. Forward recognition camera
  2. Main body ECU (multiplex network body ECU), Hybrid vehicle control ECU, Brake booster with master cylinder assembly (skid control ECU), Airbag ECU assembly, Millimeter wave radar sensor assembly

Previous value is maintained.

Displayed on multi-information display.

  • U012587
  • U012987
  • U023587
  • U014087
  • U029387

Front Camera System

(Sends the common calculation and recognition result to each application in the forward recognition camera.)

  1. Forward recognition camera
  2. Main body ECU (multiplex network body ECU), Hybrid vehicle control ECU, Brake booster with master cylinder assembly (skid control ECU), Airbag ECU assembly, Steering sensor
  • Previous value is maintained.
  • The recognition is invalid

Nothing

  • U012587
  • U012687
  • U012987
  • U014087
  • U029387

αB Control

(Performs assist to prevent sliding sideways.)

  1. Brake booster with master cylinder assembly (skid control ECU)
  2. Brake booster with master cylinder assembly (skid control ECU)

During αB control, if the CAN communication data becomes invalid, control stops.

The electronic power steering warning light (yellow) illuminates.

U0129

Steering Assist Calculation

(Changes the assist force according to the vehicle speed.)

  1. Power steering ECU assembly
  2. Brake booster with master cylinder assembly (skid control ECU)
  • Control continues temporarily with a set speed of 100 km/h (62 mph) as the system is unable to recognize the actual vehicle speed.
  • The steering wheel feels heavy below vehicle speeds of 100 km/h (62 mph) and feels light at vehicle speeds exceeding 100 km/h (62 mph).

The electronic power steering warning light (yellow) illuminates.

U0129

Assist Start Judgment

(Permits assist only when the engine is running or while driving the vehicle.)

  1. Power steering ECU assembly
  2. Hybrid vehicle control ECU, Brake booster with master cylinder assembly (skid control ECU)
  • When communication is lost with the hybrid vehicle control ECU only: No assist when the vehicle speed is 0 km/h (0 mph). Assist starts when the vehicle speed is 0.1 km/h (0 mph) or more.
  • When communication is lost with the hybrid vehicle control ECU and skid control ECU: Assist starts temporarily with a set speed of 100 km/h (62 mph).
  • When communication is lost with the hybrid vehicle control ECU only: The EPS indicator (yellow) illuminates before assist starts. Once assist starts, there is no indication of a failure.
  • When communication is lost with skid control ECU only: The EPS indicator (yellow) illuminates.
  • When communication is lost with the hybrid vehicle control ECU and skid control ECU: The EPS indicator (yellow) illuminates before assist starts. Once assist starts, there is no indication of a failure.
  • U0129
  • U0293

Assist Map Selection

(Selects the assist map according to the destination information, drivetrain, engine type, etc.)

  1. Power steering ECU assembly
  2. Brake booster with master cylinder assembly (skid control ECU), Hybrid vehicle control ECU
  • A temporary map is used to perform assist as an assist map cannot be selected according to vehicle specifications.
  • Steering feel may be unusual.
  • The frame used to select the assist map may change depending on the vehicle.

There is no indication of a communication problem. However, the electronic power steering warning light (yellow) illuminates because an assist map is not selected.

-

Steering Center Point Learning

(Learns the steering wheel center point.)

  1. Power steering ECU assembly
  2. Brake booster with master cylinder assembly (skid control ECU), Steering sensor

The steering wheel center point is not learned if there is a problem with CAN communication.

The electronic power steering warning light (yellow) illuminates.

U0129

Compensation Control

(Performs assist according to the vehicle speed for various compensation controls.)

  1. Power steering ECU assembly
  2. Brake booster with master cylinder assembly (skid control ECU)

When there is a problem with CAN communication (vehicle speed signal), the various controls operate with a set vehicle speed of 100 km/h (62 mph).

The electronic power steering warning light (yellow) illuminates.

U0129

Vehicle Speed Display

  • Displays the vehicle speed on the speedometer according to the vehicle speed signal from the skid control ECU.
  • Speed Warning Display/Buzzer
  1. Combination meter assembly
  2. Brake booster with master cylinder assembly (skid control ECU)

Signal is considered to be 0.

  • The speedometer displays 0 km/h (0 mph).
  • The drive monitor stops calculating.

U0129

Tachometer

(Displays information on the tachometer.)

  1. Combination meter assembly
  2. ECM

Signal is considered to be 0.

  • The tachometer displays 0 rpm.
  • The drive monitor stops calculating.

-

Hybrid Vehicle Indicator

(Operates the hybrid vehicle indicator.)

  1. Combination meter assembly
  2. Hybrid vehicle control ECU

Signal is considered to be 0.

The HV indicator turns off.

U0100

ECT/ENG System Display

  • Turns the temperature gauge command high engine coolant temperature warning display on and off.
  • Turns the high temperature warning buzzer on and off.
  1. Combination meter assembly
  2. ECM

Signal is not considered to be 0.

The needle of the engine coolant temperature gauge is at the C mark or below.

-

Fuel Gauge

  • Displays the fuel gauge fuel level.
  • Turns the remaining fuel amount warning on and off.
  1. Combination meter assembly
  2. Brake booster with master cylinder assembly (skid control ECU), Hybrid vehicle control ECU

Signal is considered to be 0.

  • Calculation continues using a provisional value.
  • The drive monitor stops calculating.

U0129

Odometer and trip meter display

(Displays the driving distance.)

  1. Combination meter assembly
  2. Brake booster with master cylinder assembly (skid control ECU)
  • Signal is considered to be 0.
  • Driving distance calculation is stopped.

The last displayed value remains.

U0129

Shift Display

(Displays the shift position.)

  1. Combination meter assembly
  2. Hybrid vehicle control ECU

Signal is considered to be 0.

Not displayed

-

Airbag

(Turns the SRS warning light on and off.)

  1. Combination meter assembly
  2. Airbag ECU assembly

Signal is considered to be "Active".

The airbag warning light illuminates.

U0151

Seat Belt Warning

  • Turns the seat belt warning light on and off.
  • Turns the seat belt warning buzzer on and off.
  1. Combination meter assembly
  2. Main body ECU (multiplex network body ECU), Airbag ECU assembly

Maintains last value for passenger seat.

The seat belt warning light turns off.

U0151

ABS Warning

(Turns the ABS warning light on and off.)

  1. Combination meter assembly
  2. Brake booster with master cylinder assembly (skid control ECU)

Signal is considered to be "Active".

The ABS warning light illuminates.

U0129

Brake Warning

  • Turns the brake warning light on and off.
  • Turns the brake system buzzer on and off.
  • Turns the brake fluid warning light on and off.
  • Turns the brake fluid warning buzzer on and off.
  1. Combination meter assembly
  2. Brake booster with master cylinder assembly (skid control ECU), Main body ECU (multiplex network body ECU)
  • Signal is considered to be "Active".
  • While the power switch is on (IG), the current state is maintained.

The brake warning light illuminates.

U0129

Brake Override System

(Turns the brake override system light on and off.)

  1. Combination meter assembly
  2. Hybrid vehicle control ECU

Signal is considered to be "Active".

The brake override system light illuminates.

-

SLIP Warning

(Turns the SLIP warning light on and off.)

  1. Combination meter assembly
  2. Brake booster with master cylinder assembly (skid control ECU)
  • Signal is considered to be "Active".
  • While the power switch is on (IG), the current state is maintained.

The SLIP indicator illuminates.

U0129

TRAC OFF

(Turns the TRAC OFF light on and off.)

  1. Combination meter assembly
  2. Brake booster with master cylinder assembly (skid control ECU)
  • While the power switch is on (IG), the current state is maintained.
  • Signal is considered to be 0.

Nothing

U0129

A/T Oil Temperature Warning

(Turns the A/T oil temperature warning light on/off)

  1. Combination meter assembly
  2. ECM
  • While the power switch is on (IG), the current state is maintained.
  • Signals used for mask conditions are ignored and control is performed using only sensor information

Nothing

U0100

Electronic Power Steering Warning

  • Turns the electronic power steering warning light on and off.
  • Turns the electronic power steering warning buzzer on and off.
  • Turns the electronic power steering multi-information display on and off.
  1. Combination meter assembly
  2. Power steering ECU assembly

Signal is considered to be "Active".

The electronic power steering warning light illuminates.

U0131

Headlight System

(Turns operation and warning lights on/off.)

  1. Combination meter assembly
  2. Main Body ECU (Multiplex Network Body ECU), Headlight ECU sub-assembly LH
  • Signal is considered to be 0.
  • Signal is considered to be "Active".
  • While the power switch is on (IG), the current state is maintained.

Displays system malfunction on the multimedia information display.

U0182

Light Reminder

(Turns the warning buzzer on and off.)

  1. Combination meter assembly
  2. Main Body ECU (Multiplex Network Body ECU)

While the power switch is on (IG), the current state is maintained.

Nothing

-

Smart Access System-related

  • Turns the buzzer on and off.
  • Turns the light on and off.
  • Turns the multi-information display on and off.
  1. Combination meter assembly
  2. Certification ECU (smart key ECU assembly)

While the power switch is on (IG), the current state is maintained.

Nothing

-

Intrusion Sensor

(Displays the operation status.)

  1. Combination meter assembly
  2. Main body ECU (multiplex network body ECU)

While the power switch is on (IG), the current state is maintained.

Nothing

-

Ajar Warning

  • Turns the warning buzzer on and off.
  • Turns the warning light on and off.
  1. Combination meter assembly
  2. Main body ECU (multiplex network body ECU)
  • Signal is considered to be 0.
  • While the power switch is on (IG), the current state is maintained.

Nothing

  • U0129
  • U0142

Window/Roof Open Warning

  • Turns the buzzer on and off.
  • Turns the multi-information display on and off.
  1. Combination meter assembly
  2. Main body ECU (multiplex network body ECU)

While the power switch is on (IG), the current state is maintained.

Nothing

-

Destination

(Determines the destination, etc.)

  1. Combination meter assembly
  2. Main body ECU (multiplex network body ECU)

Processes as invalid data.

Nothing

U0142

MIL

(Turns the MIL on and off.)

  1. Combination meter assembly
  2. ECM
  • Signal is considered to be "Active".
  • Signal is considered to be 0.

The MIL illuminates.

U0100

Oil Pressure

  • Turns the warning light on and off.
  • Turns the buzzer on and off.
  1. Combination meter assembly
  2. Hybrid vehicle control ECU
  • Ignores signal using mask condition and performs control using only sensor information.
  • While the power switch is on (IG), the current state is maintained.

Nothing

U0100

Oil Level

  • Turns the warning light on and off.
  • Turns the buzzer on and off.
  1. Combination meter assembly
  2. ECM

Ignores signal used for the mask conditions and performs control using only sensor information.

Nothing

-

Oil Maintenance

(Turns the operation and warning display on and off.)

  1. Combination meter assembly
  2. ECM
  • While the power switch is on (IG), the current state is maintained.
  • Oil maintenance distance calculation display is blank.
  • Signal is considered to be 0.

Nothing

-

Battery Warning

(Turns the battery light on and off.)

  1. Combination meter assembly
  2. Hybrid vehicle control ECU

While the power switch is on (IG), the current state is maintained.

Nothing

-

Electrical Component Operation Limit

(Turns the warning display on and off.)

  1. Combination meter assembly
  2. Air conditioning amplifier assembly

While the power switch is on (IG), the current state is maintained.

Nothing

-

READY

  • Turns the READY light on and off.
  • Turns the READY buzzer on and off.
  1. Combination meter assembly
  2. Hybrid vehicle control ECU

While the power switch is on (IG), the current state is maintained.

Nothing

-

Actual EV Running

(Turns the actual EV running light on and off.)

  1. Combination meter assembly
  2. Hybrid vehicle control ECU

Signal is considered to be 0.

Nothing

-

The Hybrid Vehicle System Malfunctions

  • Turns the warning light on and off.
  • Turns the warning buzzer on and off.
  • Turns the maintenance and certification mode display on and off.
  1. Combination meter assembly
  2. Hybrid vehicle control ECU

While the power switch is on (IG), the current state is maintained.

Nothing

-

Hybrid Vehicle Unit Overheat

  • Turns the warning light on and off.
  • Turns the warning buzzer on and off.
  1. Combination meter assembly
  2. Hybrid vehicle control ECU

While the power switch is on (IG), the current state is maintained.

Nothing

-

Hybrid Vehicle Coolant System Maintenance Request

(Turns the maintenance request display on and off.)

  1. Combination meter assembly
  2. Hybrid vehicle control ECU

While the power switch is on (IG), the current state is maintained.

Nothing

-

Towing Prohibited

  • Turns the warning display on and off.
  • Turns the warning buzzer on and off.
  1. Combination meter assembly
  2. Hybrid vehicle control ECU

While the power switch is on (IG), the current state is maintained.

Nothing

-

Accelerator Depressed in N

  • Turns the warning display on and off.
  • Turns the warning buzzer on and off.
  1. Combination meter assembly
  2. Hybrid vehicle control ECU

While the power switch is on (IG), the current state is maintained.

Nothing

-

TPMS

(Warning Light)(Turns the tire pressure warning light on and off.)

  1. Combination meter assembly
  2. Main body ECU (multiplex network body ECU)

Signal is considered to be "Active".

The tire pressure warning light blinks 62 times and then stays illuminated.

U0142

TPMS

(Multi-display)(Displays the pressure in the multi-display.)

  1. Combination meter assembly
  2. Main body ECU (multiplex network body ECU)

The last value is maintained.

The pressure value display turns off.

U0142

Cruise Control

(Turns the cruise control/radar cruise control operation and warning display on and off.)

  1. Combination meter assembly
  2. Forward recognition camera, ECM
  • While the power switch is on (IG), the current state is maintained.
  • Display turns off if interruption occurs for approximately 6 seconds.
  • The operation light turns off.
  • The radar cruise control operation display turns off.

-

Pre-collision System

(Turns the pre-collision indicator light on and off.)

  1. Combination meter assembly
  2. Forward recognition camera
  • While the power switch is on (IG), the current state is maintained.
  • Signal is considered to be "Active".
  • The PCS indicator illuminates.
  • Displays messages on the multi-information display.
  • U0129
  • U023A

Lane Departure Alert System

(Turns the lane departure alert light on and off.)

  1. Combination meter assembly
  2. Forward recognition camera
  • The previous value is maintained.
  • 0 is maintained.
  • The LDA indicator illuminates.
  • Displays messages on the multi-information display.

U023A

Blind Spot Monitor System

(Turns the blind spot monitor indicator on and off.)

  1. Combination meter assembly
  2. Blind spot monitor sensor LH

While the power switch is on (IG), the current state is maintained.

During operation, the indicator on the mirror surface and status mismatch.

-

Clearance Sonar

  • Turns the clearance sonar light on and off.
  • Turns the clearance sonar display on and off.
  1. Combination meter assembly
  2. Clearance warning ECU assembly

Signal is considered to be "Active".

Displays messages on the multi-information display.

-

Multi-media-linked

(Navigation, audio, telephone, etc.)

  1. Combination meter assembly
  2. Radio receiver assembly

While the power switch is on (IG), the current state is maintained.

Nothing

U0163

AVS/Drive Mode Select Signal

(Displays Eco/Sport/Sport S/Sport S+ or Custom.)

  1. Combination meter assembly
  2. Absorber control ECU
  • While the power switch is on (IG), the current state is maintained.
  • Signal is considered to be 0.

Nothing

-

Vehicle Speed Display

(Displays the vehicle speed.)

  1. Meter mirror sub-assembly
  2. Combination meter assembly

Signal is considered to be 0 and unit is not display.

Signal is considered to be 0 and unit is not display.

-

Tachometer Display

(Displays the HV calculated engine speed.)

  1. Meter mirror sub-assembly
  2. ECM

Signal is considered to be 0.

Displays only the tachometer frame and gauge marks (including units)

U0100

Eco Bar Display

(Displays the eco driving indicator.)

  1. Meter mirror sub-assembly
  2. ECM

Signal is considered to be temporary value.

The zone display area displays "OFF".

U0100

HV System Indicator Display

(Displays the HV system indicator.)

  1. Meter mirror sub-assembly
  2. Hybrid vehicle control ECU

Control is performed using initial value of input signal.

Displays only the frame.

U0293

Simple Arrow Navigation Display (Turn-by-turn)

(Displays the intersection shape, traveling direction and distance to the destination.)

  1. Meter mirror sub-assembly
  2. Radio receiver assembly

Signal is considered to be 0 and information is not displayed.

Nothing

-

Lane Display

(Displays lane information.)

  1. Meter mirror sub-assembly
  2. Radio receiver assembly

Signal is considered to be 0 and information is not displayed.

Nothing

-

Audio Information

(Displays audio information feedback.)

  1. Meter mirror sub-assembly
  2. Radio receiver assembly

Signal is considered to be 0 and information is not displayed.

Nothing

-

Vehicle Speed Limit Display

(Displays the vehicle speed limit information from navigation map data.)

  1. Meter mirror sub-assembly
  2. Combination meter assembly, Radio receiver assembly

Signal is considered to be 0.

Does not display the vehicle speed limit.

U0163

Dynamic Radar Cruise Control System Display

(Displays dynamic radar cruise control system information.)

  1. Meter mirror sub-assembly
  2. ECM
  • Control is performed using the last display request signal received until the power is turned off.
  • The interrupted signal is not displayed on the driving support display area overlay display.

Does not display.

U0100

LDA Display

(Detects white lines and warns the driver of lane departure.)

  1. Meter mirror sub-assembly
  2. Forward recognition camera

While the power switch is on (IG), the temporary state is maintained.

Does not display.

U023A

PCS Warning Display

(Displays the PCS warning.)

  1. Meter mirror sub-assembly
  2. Forward recognition camera

While the power switch is on (IG), the temporary state is maintained.

Does not display.

U023A

Intelligent Clearance Sonar System Display

(Displays the ICS warning.)

  1. Meter mirror sub-assembly
  2. Clearance warning ECU assembly

Signal is considered to be 0.

Nothing

-

G Monitor

(Graphically displays the amount of front/rear and left/right acceleration.)

  1. Meter mirror sub-assembly
  2. Airbag ECU assembly, Brake booster with master cylinder assembly (skid control ECU)

Only the frame is displayed on the G monitor until the power switch is turned off.

G monitor only displays the frame.

-

Boost Pressure Display

(Displays the boost gauge.)

  1. Meter mirror sub-assembly
  2. ECM
  • Signal is considered to be initial value.
  • Performs control based off data received before communication.
  • Displays as 0 kPa.
  • Display before interruption continues.
  • U0100
  • U0124

Steering Sensor

(Detects the vehicle steering angle.)

  1. Steering sensor
  2. Brake booster with master cylinder assembly (skid control ECU)

The steering sensor information signal is sent at regular intervals every 0.12 seconds.

Nothing

-

Anti-lock Brake System Control

(Prevents the wheels from locking during sudden stops.)

  1. Brake booster with master cylinder assembly (skid control ECU)
  2. Airbag ECU assembly
  • During control: After ending backup control (stabilizing the vehicle), the system changes to normal braking and prohibits control.
  • Not during control: Control cannot start.
  • The brake warning light illuminates.
  • The anti-lock brake system indicator illuminates.
  • The SLIP indicator illuminates.
  • The brake hold operation light illuminates.
  • The brake hold standby light illuminates.
  • U0073
  • U0123
  • U0124

Vehicle Stability Control/Traction Control

(Suppresses vehicle instability, such as sliding sideways when cornering and wheel slippage when accelerating from rest.)

  1. Brake booster with master cylinder assembly (skid control ECU)
  2. Hybrid vehicle control ECU, Steering sensor, Airbag ECU assembly
  • During control: After ending backup control (stabilizing the vehicle), the system changes to normal braking and prohibits control.
  • Not during control: Control cannot start.
  • The brake warning light illuminates.
  • The anti-lock brake system indicator illuminates.
  • The SLIP indicator illuminates.
  • The brake hold operation light illuminates.
  • The brake hold standby light illuminates.
  • U0073
  • U0123
  • U0124
  • U0126
  • U0293

Hill-start Assist Control 3

(Maintains the brake oil pressure for 2 seconds when the brake pedal is depressed further.)

  1. Brake booster with master cylinder assembly (skid control ECU)
  2. Hybrid vehicle control ECU, Steering sensor, Airbag ECU assembly
  • During control: After ending backup control (pressure reduction control), the system changes to normal braking and prohibits control, or control continues, and after normal control finishes, prohibits control.
  • Not during control: Control cannot start.
  • The brake warning light illuminates.
  • The anti-lock brake system indicator illuminates.
  • The SLIP indicator illuminates.
  • The brake hold operation light illuminates.
  • The brake hold standby light illuminates.
  • U0073
  • U0123
  • U0124
  • U0126
  • U0293

Hybrid Vehicle Regenerative Brake Coordinated Control

(Performs regenerative brake coordinated control with the hybrid vehicle system.)

  1. Brake booster with master cylinder assembly (skid control ECU)
  2. Hybrid vehicle control ECU, Airbag ECU assembly
  • During control: After ending backup control (pressure reduction control), the system changes to normal braking and prohibits control, or control continues, and after normal control finishes, prohibits control.
  • Not during control: Control cannot start.
  • The brake warning light illuminates.
  • The anti-lock brake system indicator illuminates.
  • The SLIP indicator illuminates.
  • The brake hold operation light illuminates.
  • The electronically controlled brake warning light illuminates.
  • U0073
  • U0120
  • U0123
  • U0124
  • U0293

Brake Hold Control

(Maintains the brake oil pressure when the vehicle is stopped.)

  1. Brake booster with master cylinder assembly (skid control ECU)
  2. Parking brake ECU assembly
  • During control: When brake oil pressure is applied, if the brake pedal is depressed after "Depress the brake pedal" is displayed on the multi-information display, brake hold control is prohibited.
  • Not during control: Control cannot start.
  • The anti-lock brake system indicator illuminates.
  • The SLIP indicator illuminates.
  • The brake hold operation light illuminates.
  • The brake hold standby light illuminates.
  • U0073
  • U0123
  • U0124
  • U0126
  • U0293

Static Parking Brake

(Controls EPB* lock and release.)

  1. Parking brake ECU assembly
  2. Brake booster with master cylinder assembly (skid control ECU), Airbag ECU assembly

During an acceleration sensor communication malfunction, the EPB* maintains the vehicle in a stopped position with the maximum possible braking force.

The EPB* light illuminates.

U0124

Dynamic Parking Brake

(When the vehicle is in motion, stops the vehicle according to EPB* control.)

  1. Parking brake ECU assembly
  2. Brake booster with master cylinder assembly (skid control ECU)

During a 4 wheel speed sensor malfunction, the dynamic parking brake function does not operate.

The EPB* light illuminates.

U0129

Shift-linked Control

(When the shift lever is moved to P, the parking brake operates. If the shift lever is moved to a position other than P, the parking brake is released.)

  1. Parking brake ECU assembly
  2. Hybrid vehicle control ECU

When there is a shift information communication malfunction, the shift-linked function is released and the EPB* can only be operated via the switch.

The EPB* light illuminates.

U0293

Panoramic View Monitor

  • Shows an overhead map along with back, side and front images on the display.
  • Shows guide lines on the displayed image in tandem with the steering angle.
  • Displays the clearance sonar detection area.
  • Displays the RCTA detection conditions.
  1. Parking assist ECU
  2. ECM, Steering sensor, Brake booster with master cylinder assembly (skid control ECU), Main body ECU (multiplex network body ECU), Clearance warning ECU assembly, Blind spot monitor sensor LH, Radio receiver assembly, Rear television camera assembly
  • An alert mark is displayed.
  • The estimated course lines are not displayed.
    • The guide lines (linked lines) are not displayed.
    • Distance guide line 3 (the fixed guide line) is displayed in red.
  • Clearance sonar: The icon is not displayed.
  • RCTA: The icon is not displayed.
  • Soft switch: It is grayed out.
  • Language switch: It operates according to previous values.
  • Vehicle information: It operates according to previous values.
  • When the front mode screen is displayed: The screen display ends.
  • It operates as if the mirrors are open.
  • Screen design: It operates according to previous values.
  • The camera screen display is stopped (however, the displaying of images that comply with regulations continues).
  • Nothing is displayed, except for images that comply with regulations.
  • Operates according to recorded RCTA value.
  • Grays out guide line selection switch.
  • The guide lines are not displayed.
    • The guide lines (linked lines) are not displayed.
    • The guide lines (the fixed lines) are not displayed.

An alert mark is displayed on the top of the camera screen.

  • U0073
  • U0100
  • U0126
  • U0129
  • U0140
  • U0163
  • U0233
  • U0265
  • U1110

Parking Assist Monitor

(Monitors the shift position signal and steering angle signal and displays the estimated course lines in accordance with the steering angle amount when the vehicle is being driven in reverse.)

  1. Rear television camera assembly
  2. ECM, Steering sensor, Main body ECU (multiplex network body ECU), Clearance warning ECU assembly, Blind spot monitor sensor LH, Radio receiver assembly
  • Displays an alert mark.
  • No estimated course lines.
    • Displays no guide lines (interlocking lines).
    • Displays distance guide line 3 classified as one of the guide lines (fixed lines) in red.
  • The software switch tones down.
  • Operates with vehicle information according to previous values.
  • Operates with the screen design according to previous values.
  • Displays an alert mark on top of the vehicle icon.
  • Displays the language according to previous values.
  • Displays the back screen when the forward clearance sonar display is on
  • The clearance sonar icon is not displayed.
  • The RCTA icon is not displayed.
  • Soft switch is not displayed.
  • The guide lines are not displayed.
    • The guide lines (linked lines) are not displayed.
    • The guide lines (the fixed lines) are not displayed.
  • Operates according to recorded RCTA value.

An alert mark is displayed on the top of the camera screen.

  • U0100
  • U0126
  • U0140
  • U0163
  • U0233
  • U1110

Air Conditioning Control

(Controls various air conditioning functions.)

  1. Radio receiver assembly
  2. Air conditioning amplifier assembly
  • The air conditioning related indicators are turned off.
  • If the set air temperature is displayed on an external display device, the system clears the set air temperature display.

Nothing

  • U0073
  • U0164

Clearance Sonar Settings/Notification

(Controls the settings for the clearance sonar screen notifications.)

  1. Radio receiver assembly
  2. ECM, Clearance warning ECU assembly
  • The last screen is transitioned to.
  • Voice alert timing is used.
  • Audio is permitted.

Nothing

  • U0073
  • U1110

Hybrid Vehicle Energy Flow Display

(Displays the energy flow which indicates the state of drive power transmission and regeneration.)

  1. Radio receiver assembly
  2. Hybrid vehicle control ECU
  • The energy flow is not displayed (route is displayed).
  • The amount of battery power remaining is maintained and displayed according to previous values.

The flow display of the energy flow screen is cleared.

  • U0073
  • U0293

Eco Navigation Display

(Displays the fuel consumption in 1 minute intervals, and displays the average fuel consumption history.)

  1. Radio receiver assembly
  2. ECM, Combination meter assembly, Hybrid vehicle control ECU, Brake booster with master cylinder assembly (skid control ECU)
  • Fuel consumption calculation cannot start.
  • After the calculated values are discarded and normal data is received, the 1-minute count is performed again.
  • When the fuel consumption display scale (FC_SCL) and drive monitor unit signal 6 (UNIT_6) cannot be received, communication failure judgment is not performed and the last received signal value is displayed.
  • When the following data cannot be received from the meter, nothing is displayed. If there is a communication failure, nothing is displayed until the communication is restored.
    • Fuel consumption in 1 minute intervals/average vehicle speed after starting/distance-to-empty
  • When the following data cannot be received from the meter, the previous received values are displayed if they are available. If these values are not available, nothing is displayed. When a communication failure occurs, the previous values are displayed until communication is restored.
    • Average fuel consumption (latest graph)

The 1 minute fuel consumption graph on the Eco navigation (Eco driving) display is not 1 minute or more.

  • U0073
  • U0100
  • U0129
  • U0155
  • U0293

Smart Camera Function

(Displays estimated course lines, width extension lines and distance guide lines on the image from the color rear view camera when the vehicle is driven in reverse.)

  1. Radio receiver assembly
  2. Rear television camera assembly, ECM
  • Only when camera diagnostic mode is active: The multi-media display user or diagnostic screen is changed to (camera diagnostic screen is displayed).
  • Only when camera malfunction DTC C1610 is output: The current DTC (C1610) is cleared.
  • The specified values for the reactive force setting completion notification and pointer coordinates are sent. The system assumes that there is no camera screen pattern and operates as through the reactive force setting is displaying the camera image.
  • Only during camera mode: The multi-media display user screen is transitioned to (camera screen is displayed).
  • The screen does not change to the camera screen.
  • Only during camera mode: The multi-media display user screen is transitioned to (camera screen is displayed).
  • U0073
  • U0265

Peripheral Monitoring Function

(ECUs for the multiple camera system, etc.)

  1. Radio receiver assembly
  2. Parking assist ECU, Rear television camera assembly
  • Only when camera diagnostic mode is active: The multi-media display user or diagnostic screen is changed to (displays camera diagnostic screen)
  • Only when camera malfunction DTC C1610 is output: The current DTC (C1610) is cleared.
  • The specified values for the reactive force setting completion notification and pointer coordinates are sent. The system assumes that there is no camera screen pattern and operates as through the reactive force setting is displaying the camera image.
  • Only during camera mode: The multi-media display user screen is transitioned to (camera screen is displayed).
  • Displays the camera diagnostic screen.
  • Only during camera mode: The multi-media display user screen is transitioned to (camera screen is displayed).
  • U0073
  • U023B

Destination Determination

(Determines destination information (including steering wheel information), the driver/passenger seats, and the availability of the XM function.)

  1. Radio receiver assembly
  2. Main body ECU (multiplex network body ECU)

Determines the destination according to the last received value and operates accordingly (if there is no last received value, the system operates using the default value).

The time zone and language selection screens do not match the destination.

  • U0073
  • U0140

Vehicle Customize Function

(Changes the behavior and controls parameters of various functions (illumination lighting time, etc.) according to the user operation via the screen.)

  1. Radio receiver assembly
  2. Air conditioning amplifier assembly, Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU), Front power seat switch (for driver side)
  • 3 retries are performed (including the first time).
  • The entrance button is grayed out.
  • Customization is performed according to diagnostic communication.
  • Grays out and prohibits operation of the applicable customization item.
  • Grays out and prohibits selection of the entrance button.
  • Grays out the entrance button.

U0073

Meter-linked Function

(Changes the display based on the customization information set on the meter. Outputs customization information set within the system itself.)

  1. Radio receiver assembly
  2. Combination meter assembly
  • Linked language, unit and accent color: The last valid state is maintained.
  • Gas station search:
    • Control is performed as if there is an unconfirmed gas station search request.
    • The last set value is maintained.
    • If the set value is displayed, it is grayed out so that the value cannot be changed.

Function linking with the combination meter assembly cannot be performed.

  • U0073
  • U0155

Information Sound Control Function

(Receives flags from the front camera ECU to operate the alarm and mutes multi-media audio while the alarm is in operation.)

  1. Radio receiver assembly
  2. Forward recognition camera

Audio muting is canceled and requests that command switch unit to switch to the normal condition (muting canceled).

Nothing

U0073

DMS

(Enables selection of the vehicle control operation mode during driving.)

  1. Radio receiver assembly
  2. Central gateway ECU (network gateway ECU)
  • DMS customize entrance button is not displayed.
  • When the setting screen is displayed, the screen changes from the setting screen.

DMS customize entrance button is not displayed.

U0073

Vehicle Warning Detail Display

  1. Radio receiver assembly
  2. Combination meter assembly, ECM, Air conditioning amplifier assembly, Clearance warning ECU assembly
  • If a CAN communication stop occurs before warning occurs, warning is unconfirmed.
  • If a CAN communication stop occurs after warning occurs, after the system recovers and a certain amount of time elapses, warning is confirmed.
  • Does not display user display.
  • Stores a DTC on the telephone transceiver side.

U0073

Smart Access System with Push-Button Start Function

  • Entry lock/unlock and back door unlatch
  • Entry and start warnings
  • Entry illumination (dome light illumination, etc.)
  • Engine start possible display
  1. Main body ECU (multiplex network body ECU), Certification ECU (smart key ECU assembly)
  2. Main body ECU (multiplex network body ECU), Certification ECU (smart key ECU assembly)

An entry unlock retry is performed.

When transmission is abnormal:

  • The entry lock/unlock and back door open/unlatch do not operate.
  • The smart access system warnings (the key lock-in prevention warning, the leaving with the key warning, key reminder, etc.) and the key lock-in prevention function do not operate.
  • Entry illumination does not operate.

When there is a reception stop:

  • The smart access system warnings (the key lock-in prevention warning, the leaving with the key warning, key reminder, etc.), the power switch on (IG) possible display, and the key lock-in prevention function do not operate.
  • The answer back function repeats a maximum of 3 times when an unlock operation is performed. However, this only occurs when the main body ECU (multiplex network body ECU) can receive requests from the certification ECU (smart key ECU assembly).
  • When the power switch is on (IG), the entry lock/unlock and back door unlatch do not operate.
  • U0142
  • U0155

Smart Access System with Push-Button Start Function

  • Entry lock/unlock and back door unlatch
  • Entry and start warnings
  • Entry illumination (dome light illumination, etc.)
  • Engine start possible display
  1. Certification ECU (smart key ECU assembly)
  2. ECM

The previous value is maintained.

Incorrect smart access system warnings are output.

U0100

Wireless Function

(Operates the wireless lock/unlock functions, etc.)

  1. Main body ECU (multiplex network body ECU)
  2. Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU)

Nothing

  • Wireless lock/unlock and trunk functions do not operate.
  • When the power switch is on (IG), the wireless lock/unlock/back open functions do not operate.

U0142

Memory Function

(Moves the seat and steering wheel to the recorded positions when an entry unlock or wireless unlock operation is performed.)

  1. Main body ECU (multiplex network body ECU)
  2. Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU)

Nothing

  • The memory recall function does not operate.
  • The memory key registration does not operate.

U0142

Power Switch Lettering Illumination Control

(Operates the power switch lettering illumination in conjunction with the dome light illumination, etc.)

  1. Certification ECU (smart key ECU assembly)
  2. Combination meter assembly, Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU)
  • If the power switch letters are illuminated due to the dome light, the illumination turns off.
  • When the DC cut fuse is removed and the power switch letters are illuminated due to the panel illumination, the illumination turns off.
  • The previous value is maintained.
  • If the power switch letters are not illuminated, they do not illuminate.
  • If the power switch letters are illuminated due to the panel illumination, the illumination does not turn off.
  • If the power switch letters are illuminated due to the dome light, the illumination turns off.
  • When the DC cut fuse is removed and the power switch letters are illuminated due to the panel illumination, the illumination turns off.

U0142

Security Indicator Display Function

(Displays the immobiliser security condition.)

  1. Certification ECU (smart key ECU assembly)
  2. Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU)

Nothing

Security condition cannot display normally (illuminates during security warning preparation/security warning).

U0142

Security Indicator Display Function

(Displays the immobiliser security condition.)

  1. Certification ECU (smart key ECU assembly)
  2. Hybrid vehicle control ECU

Nothing

The smart access system warnings do not operate properly.

  • The timing for stopping the engine start operation method display when starting the engine is delayed.
  • The smart key portable device low battery warning does not operate when starting the engine.

U0293

Electronic Power Switch Control

(Changes the power switch mode and sends starter drive requests according to engine start switch operation.)

  1. Certification ECU (smart key ECU assembly)
  2. Main body ECU (multiplex network body ECU), Brake booster with master cylinder assembly (skid control ECU), Hybrid vehicle control ECU, ECM, Combination meter assembly

Nothing

  • Guidance cannot be displayed.
  • Preheater does not operate.
  • When the power switch is off, the smart access system with push button start telltale blinks red according to a "vehicle information malfunction" judgment.
  • Remote engine starter does not operate.
  • U0140
  • U0155
  • U0293
  • U1117

Door Lock

(Operates the lock and unlock functions [the key-linked function, key lock-in prevention function, automatic lock function, etc.].)

  1. Main body ECU (multiplex network body ECU)
  2. ECM, Combination meter assembly, Airbag ECU assembly, Hybrid vehicle control ECU
  • While the power switch is on (IG), performs operations using the last information before the communication stop.
  • While the power switch is off, the key-linked operation is permitted.
  • The speed-sensitive auto-lock operation is prohibited.
  • The shift-linked auto-lock operation is prohibited.
  • The shift-linked auto-unlock operation is prohibited.
  • Auto lock switching is prohibited.

Nothing

  • U0100
  • U0101
  • U0151
  • U0155

Alarm

(Sounds various warnings.)

  1. Main body ECU (multiplex network body ECU)
  2. ECM, Hybrid vehicle control ECU, Multiplex network door ECU, Certification ECU (smart key ECU assembly)

Nothing

Nothing

  • U0100
  • U0120
  • U0230
  • U0293

Automatic Dimming of Display

(Controls display dimming control.)

  1. Main body ECU (multiplex network body ECU)
  2. Combination meter assembly

Automatically performs display dimming control when tail mode is not canceled (when the light sensor illuminance signal value is less than the display dimming value, the interior displays and indicators are dimmed).

Nothing

U0155

Illumination

(Performs illumination control.)

  1. Main body ECU (multiplex network body ECU)
  2. ECM, Certification ECU (smart key ECU assembly)
  • The dome light turns off.
  • The outside handle illumination turns off.
  • The foot light is adjusted.

The dome light does not turn off immediately after exiting the vehicle.

  • U0101
  • U0327

Seat and Mirror Control

(Controls the memory function [the seat, steering wheel and mirror position adjustments].)

  1. Main body ECU (multiplex network body ECU)
  2. Combination meter assembly, Certification ECU (smart key ECU assembly), Multiplex tilt and telescopic ECU, Front power seat switch (for driver side), Outer mirror control ECU assembly RH, Outer mirror control ECU assembly LH, Parking brake ECU assembly
  • Commands the seat, tilt and telescopic, etc. to stop operating.
  • Controls the memory function playback sequence.
  • Controls the memory call function.
  • Controls the return/away function.
  • When recording the memory call, the operation stops due to a time out when waiting for the verification results.

Nothing

  • U0120
  • U0155
  • U0199
  • U0200
  • U0208
  • U0327
  • U1106
  • U1115

Diagnostic/C-BEST

(Diagnostic phase 4 communication.)

  1. -
  2. All ECUs connected to CAN

Exits diagnostic mode.

Nothing

-

Smart Access System with Push-Button Start/Wireless

(Controls smart access system/wireless functions.)

  1. Certification ECU (smart key ECU assembly)
  2. Certification ECU (smart key ECU assembly)

Entry lock/unlock control not possible.

Nothing

U0327

Back Door Opener

(Performs back door opener control and power back door one motion open control.)

  1. Main body ECU (multiplex network body ECU)
  2. Combination meter assembly, Multiplex network door ECU
  • Back door opener control is prohibited.
  • The back door operation start answer back (hazard warning light/buzzer) does not operate.
  • The one motion power back door does not operate.

Nothing

  • U0155
  • U0230

TPMS

(Monitors the tire pressure and meter speed, etc. and operates the meter indicators and multi-information display.)

  1. Main body ECU (multiplex network body ECU)
  2. Combination meter assembly

Sends an initial communication value to the BERKES.

The tire pressure monitor sensor indicator in the combination meter assembly blinks for 1 minute and then stays illuminated.

U0155

Light Control (Light ECU)

(The light ECU controls the load around the headlights [body ECU sends illumination requests to the light ECU]).

  1. Headlight ECU sub-assembly LH
  2. Main body ECU (multiplex network body ECU)

Nothing

Nothing

U0182

Rear Power Seat Driving Status Output Control

(Outputs the driving status to the rear power seat ECU [operations prohibited while driving].)

  1. Main body ECU (multiplex network body ECU)
  2. ECM, Combination meter assembly, Parking brake ECU assembly
  • Outputs "Driving Status OFF".
  • Outputs "Driving Status ON".

Nothing

  • U0100
  • U0101
  • U0155
  • U1106

Microcomputer Preset Steering

  • Automatically starts the auto-away and auto-return operations for the steering wheel according to a signal that indicates when the key is inserted or removed.
  • Memorizes and recalls the selected driving position according to memory switch operation.
  • Moves the steering wheel to the selected position according to manual switch operation on the steering column cover.
  1. Multiplex tilt and telescopic ECU
  2. Combination meter assembly, Main body ECU (multiplex network body ECU), Front power seat switch (for driver side)

Nothing

The memory, recall, auto-return, auto-away and manual functions do not operate.

  • U0142
  • U0208
  • B2624

Microcomputer Preset Driving Position System

  • Controls the seat position according to the operation conditions [main body ECU (multiplex network body ECU] request, shift position and vehicle speed).
  • Controls the tilt and telescopic functions together with seat control.
  1. Front power seat switch (for driver side)
  2. ECM, Combination meter assembly, Main body ECU (multiplex network body ECU), Multiplex tilt and telescopic ECU, Certification ECU (smart key ECU assembly)
  • The memory system, memory call and return away functions do not operate.
  • The tilt and telescopic-linked function does not operate.
  • The memory system, memory call and return away functions do not operate.
  • The tilt and telescopic-linked function does not operate.

-

Light Control

(Controls the illumination of the lights based on courtesy switch information and interior light information.)

  1. Outer mirror control ECU assembly RH, Outer mirror control ECU assembly LH
  2. Main body ECU (multiplex network body ECU)

The mirror puddle lights do not operate.

The mirror puddle lights do not operate.

U0142

Mirror Operation Control

(Controls the operation of the outer mirrors according to the mirror switch information from the main body ECU [multiplex network body ECU], etc.)

  1. Outer mirror control ECU assembly RH, Outer mirror control ECU assembly LH
  2. Main body ECU (multiplex network body ECU)

The mirrors do not operate manually.

The mirrors do not operate manually.

U0142

Mirror Heater Control

(Controls the operation of the outer mirror heaters based on defogger switch information from the air conditioning amplifier assembly, etc.)

  1. Outer mirror control ECU assembly RH, Outer mirror control ECU assembly LH
  2. Air conditioning amplifier assembly, Main body ECU (multiplex network body ECU)

The mirror heaters do not operate.

The mirror heaters do not operate.

U0142

Outer Mirror Retraction Control

(Controls the electronic retraction operation of the outer mirrors according to the mirror switch information from the main body ECU [multiplex network body ECU], etc.)

  1. Outer mirror control ECU assembly RH, Outer mirror control ECU assembly LH
  2. Main body ECU (multiplex network body ECU)

The electronic mirror retraction function does not operate.

The electronic mirror retraction function does not operate.

-

Mirror Reverse Control

(Controls the reverse operation of the outer mirrors based on reverse request information from the main body ECU [multiplex network body ECU].)

  1. Outer mirror control ECU assembly RH, Outer mirror control ECU assembly LH
  2. Main body ECU (multiplex network body ECU)

The reverse shift-linked function does not operate.

The reverse shift-linked function does not operate.

U0142

Mirror Memorization and Recall Control

(Memorizes and recalls the mirror position of the outer mirrors based on the memory request from the main body ECU [multiplex network body ECU].)

  1. Outer mirror control ECU assembly RH, Outer mirror control ECU assembly LH
  2. Main body ECU (multiplex network body ECU)
  • The mirror recall function does not operate.
  • The mirror memorization function does not operate.
  • The mirror recall function does not operate.
  • The mirror memorization function does not operate.

U0142

Memory Switch Signal Substitute Transmission

(Sends the memory switch signal via CAN communication.)

  1. Main body ECU (multiplex network body ECU)
  2. Outer mirror control ECU assembly RH, Outer mirror control ECU assembly LH

Nothing

The seat and mirror position memorization and recall functions do not operate.

-

Power Back Door Open/Close Function

  • Automatically opens the back door according to the operation conditions (power source mode, shift position, vehicle speed, lock position) and switch operation (driver seat/wireless).
  • Automatically closes the back door according to switch operation (driver seat/wireless/back door).
  1. Multiplex network door ECU
  2. ECM, Combination meter assembly, Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU)
  • Automatic opening and closing does not operate.
  • Cannot reverse operation during automatic operation.
  • The automatic opening and closing operations cannot be stopped.
  • Does not perform the automatic open and close operation.
  • The wireless one motion function does not operate.
  • Stopping the automatic open or closing operation is not possible.

-

Wireless One Motion Function

(If a wireless switch operation is performed with the doors locked, the back door is automatically opened.)

  1. Multiplex network door ECU
  2. ECM, Combination meter assembly, Main body ECU (multiplex network body ECU)

The wireless one motion function does not operate.

The wireless one motion function does not operate.

-

Back Door Opener Function

(Opens the back door according to operation conditions (power source mode, vehicle speed, lock position) and the back door handle switch.)

  1. Multiplex network door ECU
  2. Combination meter assembly, Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU)

The back door opener does not operate.

The back door opener does not operate.

-

Back Door Closer Function

(Completely closes the back door when it is ajar.)

  1. Multiplex network door ECU
  2. Combination meter assembly, Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU)

The function cannot reverse operation during the closer operation.

The function cannot reverse operation during the closer operation.

-

Courtesy Switch Signal Substitution Output Function

(Sends a back door/luggage courtesy switch signal through the CAN bus.)

  1. Multiplex network door ECU
  2. Main body ECU (multiplex network body ECU)

Nothing

When the back door/luggage compartment door is open, the indicator does not illuminate.

-

Lock Permission Signal Output Function during Power Back Door Closing Operation

(Sends a power back door closing operation signal to the CAN bus in order to allow a wireless door lock during the power back door closing operation.)

  1. Multiplex network door ECU
  2. Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU)

Nothing

Disallows the wireless lock during the power back door closing operation.

-

Leveling

(Judges the vehicle driving condition from the wheel speed data and calculates the pitch angle from the vehicle height sensor value using a pitch angle conversion formula to adjust the vertical beam axis of the headlights.)

  1. Headlight ECU sub-assembly LH
  2. Brake booster with master cylinder assembly (skid control ECU), Main body ECU (multiplex network body ECU)

Leveling control stops (beam axis position is stopped at position when malfunction was detected).

Nothing

  • U0129
  • U0142

Leveling (Dynamic)

(Judges the vehicle driving condition from the wheel speed data and calculates the pitch angle from the vehicle height sensor value using a pitch angle conversion formula to adjust the vertical beam axis of the headlights.)

  1. Headlight ECU sub-assembly LH
  2. ECM, Brake booster with master cylinder assembly (skid control ECU), Main body ECU (multiplex network body ECU)
  • Leveling control is stopped.
  • ACT current position of beam axis position is higher than initial position: Leveling control is stopped at initial position.
  • ACT current position of beam axis position is lower than initial position: Leveling control is stopped at current position.

Nothing

  • U0073
  • U0100
  • U0129
  • U0142
  • U1000

Leveling Indicator

(Monitors leveling system malfunctions and when a malfunction is detected, sends an indicator illumination request to the meter.)

  1. Headlight ECU sub-assembly LH
  2. Combination meter assembly

Maintains the leveling indicator state.

Nothing

  • U0073
  • U1000

Destination Determination

  • Crosschecks the destination set by the factory with the destination information from the CAN bus line.
  • The leveling pitch angle calculation constant and the illumination operations of each light differ according to the destination.
  1. Headlight ECU sub-assembly LH
  2. ECM, Main body ECU (multiplex network body ECU)

Nothing

Nothing

  • U0073
  • U0100
  • U0142
  • U1000

Cornering Light

(Turns the cornering light on and off according to the wheel speed, turn, steering angle and shift position data.)

  1. Headlight ECU sub-assembly LH
  2. ECM, Brake booster with master cylinder assembly (skid control ECU), Combination meter assembly, Steering sensor, Main body ECU (multiplex network body ECU)

Stops cornering light control (cornering light turns off).

Nothing

  • U0073
  • U0101
  • U0126
  • U0129
  • U0142
  • U0155
  • U1000

Low Beam, High Beam, DRL (Domestic Default), Clearance, Side Marker (OPT)

(Turns the specified light source on and off according to low beam, high beam, DRL [domestic default], clearance light and side marker light command data.)

  1. Main body ECU (multiplex network body ECU)
  2. Headlight ECU sub-assembly LH

Forces the low beams, clearance lights to illuminate.

Nothing

  • U0073
  • U0142
  • U1000

LED Headlight Indicator

(Monitors low beam LED malfunctions and when a malfunction is detected, sends an indicator illumination request to the meter.)

  1. Headlight ECU sub-assembly LH
  2. Headlight ECU sub-assembly LH

Maintains the LED headlight indicator status.

Nothing

  • U0073
  • U1000

Headlight Cleaner Signal Output

(Outputs the headlight cleaner relay ON signal based on the direct line front washer switch signals, headlight cleaner switch signals, low beam illumination command from the main body ECU [multiplex network body ECU] and IG data.)

  1. Headlight ECU sub-assembly LH
  2. Main body ECU (multiplex network body ECU)

Stops headlight cleaner operation.

Nothing

U0142

Swivel

(Adjusts the horizontal beam axis of the headlights based on the wheel speed, steering angle and shift position.)

  1. Headlight ECU sub-assembly LH
  2. Main body ECU (multiplex network body ECU), Brake booster with master cylinder assembly (skid control ECU), ECM, Steering sensor

Operates with the beam axis facing forward.

Nothing

  • U0073
  • U0100
  • U0101
  • U0126
  • U0129
  • U0142
  • U1000

Ambient Temperature Data (Display)

(Is used to correct the distance measured by ultrasonic waves.)

  1. Clearance warning ECU assembly
  2. Air conditioning amplifier assembly

Nothing

Nothing

U0164

Display Dimmer Signal, Each Door Courtesy Switch Signal, Driver Seat Buckle Switch Signal, Parking Brake Switch Signal

  1. -
  2. Main body ECU (multiplex network body ECU)

Nothing

Nothing

U0140

Destination Package Information

(Judges the destination (including buckle information) and is used as an operation condition.)

  1. Clearance warning ECU assembly
  2. Main body ECU (multiplex network body ECU)

During communication stop: System is operated using error recorded value.

During communication stop: System is operated using error recorded value.

U0140

During TRAC Control

(Is used as an operation condition for the intelligent parking assist system.)

  1. Clearance warning ECU assembly
  2. Brake booster with master cylinder assembly (skid control ECU)

Nothing

Nothing

U0129

Shift Position Signal

(Used to an operation condition.)

  1. Clearance warning ECU assembly
  2. Hybrid vehicle control ECU

Changes to an operation state which is used when the shift position is in P.

  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.

U0293

HV System Active Flag, Ready Condition Signal, Shift Information

(Are used as operation conditions.)

  1. Clearance warning ECU assembly
  2. Hybrid vehicle control ECU
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.

U0293

Main Switch Signal

(Used to an operation condition.)

  1. Clearance warning ECU assembly
  2. Combination meter assembly
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.

U0155

Clearance Sonar Buzzer Mute/Volume Adjustment

(Used to an operation condition.)

  1. Clearance warning ECU assembly
  2. Combination meter assembly
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.

U0155

Data Continuity (Valid/Invalid) Flag, Short to +B Malfunction, Sensor Malfunction, Steering Angle Signal, Sensor Internal Zero Point Memorization Enabled/Disabled, Steering Sensor Internal Memorized Zero Point Values

(Used to an operation condition.)

  1. Clearance warning ECU assembly
  2. Steering sensor
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.

U0126

Speed Information for Each Wheel

(Used to calculate of vehicle speed)

  1. Clearance warning ECU assembly
  2. Brake booster with master cylinder assembly (skid control ECU)
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.

U0129

Speed Sensor Condition Signal for Each Wheel

(Used to operation condition)

  1. Clearance warning ECU assembly
  2. Brake booster with master cylinder assembly (skid control ECU)
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.

U0129

Brake Master Cylinder Condition Signal, Stop Light Switch Condition Signal, ABS/VSC/TRAC Control Signal

(Used to an operation condition.)

  1. Clearance warning ECU assembly
  2. Brake booster with master cylinder assembly (skid control ECU)
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.

U0129

Stop Light Drive Relay Condition Signal, Brake Hard Condition Signal, Malfunction Control Result (ACC/PCS/ICS)

(Used to an operation condition.)

  1. Clearance warning ECU assembly
  2. Brake booster with master cylinder assembly (skid control ECU)
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.

U0129

GL1 and 2 Zero Point Value, Yaw Rate Sensor Condition Signal (Installation Condition, Zero Point Not Calibrated Condition)

(Used to an operation condition.)

  1. Clearance warning ECU assembly
  2. Brake booster with master cylinder assembly (skid control ECU)
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.

U0129

Vehicle Speed Pulse Cumulative Value for Each Wheel

(Used to calculate amount of movement.)

  1. Clearance warning ECU assembly
  2. Brake booster with master cylinder assembly (skid control ECU)
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.

U0129

TRAC OFF Light, VSC OFF Light

(Used to an operation condition.)

  1. Clearance warning ECU assembly
  2. Brake booster with master cylinder assembly (skid control ECU)
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.

U0129

Yaw Rate Sensor Condition Signal (Enabled/Disabled/Malfunction/Sensor Signal/Difference)

(Used to an operation condition.)

  1. Clearance warning ECU assembly
  2. Airbag ECU assembly
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.
  • Stop operation
  • Displays messages on the multi-information display.
  • Sounds the buzzer.

U0151

TC DTC Output Service

(While TC = ON is being received from the ECM, a DTC is output in response to the request from the combination meter assembly.)

  1. Combination meter assembly
  2. Hybrid vehicle control ECU

If the TC signal is lost during TC service (TC = ON), the TC is determined to be OFF and TC service ends.

Nothing

-

Timestamp

(Records DTCs and timestamps received from the main body ECU.)

  1. Airbag ECU assembly
  2. Main body ECU (multiplex network body ECU)

Changes to a separate count inside the ECU and sets separate count recognition information when it receives a fail value or communication stops.

Nothing

-

Trigger Signal/Autonomous Transmission

(Outputs the yaw rate sensor signal.)

  1. Airbag ECU assembly
  2. Brake booster with master cylinder assembly (skid control ECU)

The yaw rate sensor information signal is sent at regular intervals every 0.012 seconds.

Nothing

-

Event Data Recorder (EDR)

(Records conditions, such as the vehicle speed, the amount the accelerator is depressed, and the shift lever position when the event data recorder recording conditions are met.)

  1. Airbag ECU assembly
  2. ECM, Brake booster with master cylinder assembly (skid control ECU), Forward recognition camera, Steering sensor, ECM, Airbag ECU assembly, Hybrid vehicle control ECU
  • An invalid value is recorded in the EDR.
  • Maintains previous values.

Nothing

-

Drive Data Recorder (DDR)

(Records conditions such as the vehicle speed, the amount the accelerator is depressed, and the shift lever position when the drive data recorder recording conditions are met.)

  1. Airbag ECU assembly
  2. ECM, Main body ECU (multiplex network body ECU), Brake booster with master cylinder assembly (skid control ECU), Power steering ECU assembly, Steering sensor, Combination meter assembly, Forward recognition camera, Airbag ECU assembly, Hybrid vehicle control ECU, Forward recognition camera
  • An invalid value is recorded in the DDR.
  • Maintains previous values.

Nothing

-

Blind Spot Monitor, Rear Cross (Crossing) Traffic Alert

(Warns the driver when the system detects a vehicle in the blind spots of the outer mirrors.)

  1. Blind spot monitor sensor LH
  2. ECM, Hybrid vehicle control ECU, Brake booster with master cylinder assembly (skid control ECU), Main body ECU (multiplex network body ECU), Steering sensor

Maintains previous values.

  • The BSM telltale illuminates.
  • "BSM failure. Take your car to a dealer." is displayed on the multi-information display.
  • U0126
  • U0129
  • U0142
  • U0293

ASC

(Outputs driving noise according to the input status of the vehicle.)

  1. Stereo component equalizer assembly
  2. ECM, Main body ECU (multiplex network body ECU), Brake booster with master cylinder assembly (skid control ECU)

When transmission is lost:

  • Clears requests to send inside the SSD ECU.

When there is a reception stop:

  • When CAN communication from the sending node malfunctions, control continues.

Nothing

  • U0100
  • U0129
  • U0142

SSD

(Obtains vehicle information signals and outputs the engine sound.)

  1. Stereo component equalizer assembly
  2. ECM, Hybrid vehicle control ECU, Main body ECU (multiplex network body ECU), Brake booster with master cylinder assembly (skid control ECU)

Sound output is stopped.

Nothing

  • U0122
  • U0142
  • U0293

Lost Communication Detection

(Monitors the NS and NM frames of the ECU connected to the global bus to detect for ECU communication failures.)

  1. Central gateway ECU (network gateway ECU)
  2. ECUs connected to the global bus

Stores the communication failure time.

Nothing

-

AVS

(Controls the variable damping force according to the vehicle state.)

  1. Absorber control ECU
  2. Hybrid vehicle control ECU, Steering sensor, Brake booster with master cylinder assembly (skid control ECU), Airbag ECU assembly, Radio receiver assembly
  • Assuming that the power source mode is on (READY), controls other than anti-squat control are continued.
  • Control continues (damping force control).
  • Not during emergency steering control: Damping force set to fail-safe level and control continues except for roll control and navigation coordinated control.
  • During emergency steering control: Control performed with damping force set to emergency level.
  • Control continues except for roll control.
  • Control continues except for navigation coordinated control.

Nothing

  • U0101
  • U0122
  • U0124
  • U0126
  • U0293

Vehicle Proximity Notification Function

(The vehicle proximity notification system outputs a sound [speaker] based on the vehicle speed or other input signal, in order to provide a warning to pedestrians/bicycles when a quiet HV vehicle draws near.)

  1. Vehicle approaching speaker controller
  2. Brake booster with master cylinder assembly (skid control ECU)

Fixes the vehicle speed as 0 km/h (0 mph).

(Does not output sound based on vehicle speed.)

Nothing

U0129

  1. Vehicle approaching speaker controller
  2. Main body ECU (multiplex network body ECU)

Fixes the auto dimmer signal to indeterminacy.

Nothing

U0140

  1. Vehicle approaching speaker controller
  2. Hybrid vehicle control ECU

Fixes the shift information to shift position P.

Nothing

U0293

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