Lexus NX: Data List / Active Test

DATA LIST / ACTIVE TEST

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

DATA LIST

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus:

(1) Body Electrical / AFS / Data List.

(2) Body Electrical / Main Body / Data List.

(3) Body Electrical / Combination Meter / Data List.

(4) Body Electrical / Front Recognition Camera (Front Lighting Control) / Data List.

(5) Chassis / Front Recognition Camera / Data List.

(e) According to the display on the Techstream, read the Data List.

Body Electrical > AFS > Data List

Tester Display

Measurement Item

Normal Condition

Reference Value

Diagnostic Note

Clearance Light State

Parking light state

OFF or ON

OFF: Parking lights off

ON: Parking lights on

-

Right Cornering Light/Front Side Illuminate Light State

Cornering light RH/front side illuminate light RH state

OFF or ON

OFF: Cornering light RH/front side illuminate light RH off

ON: Cornering light RH/front side illuminate light RH on

-

Left Cornering Light/Front Side Illuminate Light State

Cornering light LH/front side illuminate light LH state

OFF or ON

OFF: Cornering light LH/front side illuminate light LH off

ON: Cornering light LH/front side illuminate light LH on

-

Daylight Operating State

Daytime running light state

OFF or ON

OFF: Daytime running lights off

ON: Daytime running lights on

The display is different depending on the destination.

+B Voltage Value

Headlight ECU sub-assembly LH +B power supply voltage value

0.00 to 19.75 V

11 to 14 V

-

Traveling Direction

Traveling direction

Not Fwd or Fwd

Not Fwd: Shift lever in R or N

Fwd: Shift lever not in R or N

-

Steering Sensor Initialization Status

Steering sensor initialization state

Incomplete or Completed

Incomplete: Steering sensor zero point calibration incomplete

Completed: Steering sensor zero point calibration complete

-

Headlight Low Beam State

Low beam headlight state

OFF or ON

OFF: Low beam headlights off

ON: Low beam headlights on

-

Headlight High Beam State

High beam headlight state

OFF or ON

OFF: High beam headlights off

ON: High beam headlights on

-

DRL State

Daytime running light state

OFF or ON

OFF: Daytime running lights off

ON: Daytime running lights on

The display is different depending on the destination.

Engine

Engine condition

Stop or Run

Stop: Engine is stopped

Run: Engine is running

-

+B

Headlight ECU sub-assembly LH IG power supply voltage value

0.00 to 19.75 V

11 to 14 V

-

Steering Sens Signal

Steering sensor signal value

-384.0 to 382.5 deg

Changes according to the operation of the steering wheel

Turning left: Increases

Turning right: Decreases

Steering Sens Center Pos

Steering sensor center position

-3072.0 to 3070.5 deg

Center position: 0.0 deg

Turning left: Increases

Turning right: Decreases

FR Wheel Speed

Front right wheel speed

0.00 to 327.67 km/h (0.00 to 203.61 mph)

Condition can be displayed

Vehicle stop condition: 0 km/h (0 mph)

-

FL Wheel Speed

Front left wheel speed

0.00 to 327.67 km/h (0.00 to 203.61 mph)

Condition can be displayed

Vehicle stop condition: 0 km/h (0 mph)

-

Vehicle Speed

Vehicle speed

0.00 to 327.67 km/h (0.00 to 203.61 mph)

Condition can be displayed

Vehicle stop condition: 0 km/h (0 mph)

-

Init Writing Count

Number of times initialization performed

0 to 255

Number of times initialization performed

-

Sensor Initialization Hist

Sensor initialization history

not comp, 10%, 25%, 50%, 75%, 100% or complied

not comp: headlight ECU sub-assembly LH not initialized after replacing

10%: Initialization completed when fuel tank was 10% full

25%: Initialization completed when fuel tank was 25% full

50%: Initialization completed when fuel tank was 50% full

75%: Initialization completed when fuel tank was 75% full

100%: Initialization completed when fuel tank was 100% full

complied: ECU not replaced and ECU has not been initialized at workshop

-

Number Of Trouble Codes

Number of trouble codes

0 to 255

Number of stored DTCs displayed

-

Body Electrical > Main Body > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

IG SW

Power switch on (IG) signal

ON or OFF

ON: Power switch on (IG)

OFF: Power switch off

"OFF" is also displayed for this item when the power switch is on (ACC).

FR Door Courtesy SW

Front door courtesy light switch RH

ON or OFF

ON: Front door RH closed

OFF: Front door RH open

-

Dimmer SW

Headlight dimmer switch high position signal

ON or OFF

ON: Headlight dimmer switch in high or high flash position

OFF: Headlight dimmer switch in low position

-

Passing Light SW

Headlight dimmer switch high flash position (pass) signal

ON or OFF

ON: Headlight dimmer switch in high flash position

OFF: Headlight dimmer switch not in high flash position

-

Front Fog Light SW

Front fog light switch signal

ON or OFF

ON: Front fog light switch on

OFF: Front fog light switch off

-

Auto Light SW

Headlight dimmer switch AUTO position signal

ON or OFF

ON: Headlight dimmer switch in AUTO position

OFF: Headlight dimmer switch not in AUTO position

-

Head Light SW (Head)

Headlight dimmer switch head position signal

ON or OFF

ON: Headlight dimmer switch in head position

OFF: Headlight dimmer switch not in head position

-

Head Light SW (Tail)

Headlight dimmer switch tail position signal

ON or OFF

ON: Headlight dimmer switch in tail or head position

OFF: Headlight dimmer switch in neither tail nor head position

-

Light Sensor Illuminance

Light control sensor illuminance

0 to 17600 lx

Value is output according to ambient light level

-

Light Sensor Connection Status

Light control sensor connection status

ON or OFF

ON: Light control sensor is connected

OFF: Light control sensor is not connected

-

Sensitivity

Sensitivity setting of automatic light control system

Normal, Dark2, Dark1, Light1 or Light2

Customized setting displayed

-

DRL Function

Daytime running light function

ON or OFF

Customized setting displayed

-

Disp Ex ON Sen

Sets the display light (meter, audio, etc.) dim starting level

Normal, Dark2, Dark1, Light or Light2

Customized setting displayed

-

Disp Ex OFF Sen

Sets the display light (meter, audio, etc.) dim return level

Normal, Dark2, Dark1, Light or Light2

Customized setting displayed

-

Follow Me Home Lighting Time

Customized length of time that low beam headlights are illuminated when power switch is off and headlight dimmer switch is pulled to flash headlights once

30 s, 60 s, 90 s, or 120 s

Customized setting displayed

-

Light up Clearance Lights at Door Unlock Function

Welcome lighting system

ON or OFF

Customized setting displayed

-

The Number of DTC

Number of trouble codes

0 to 255

Condition can be displayed

-

Body Electrical > Combination Meter > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Turn Signal Switch (Right)

Turn signal switch (right) signal

ON or OFF

ON: Turn signal switch (right) on

OFF: Turn signal switch (right) off

-

Turn Signal Switch (Left)

Turn signal switch (left) signal

ON or OFF

ON: Turn signal switch (left) on

OFF: Turn signal switch (left) off

-

Hazard Flasher Switch

Hazard switch signal

ON or OFF

ON: Hazard switch on

OFF: Hazard switch off

-

Body Electrical > Front Recognition Camera (Front Lighting Control) > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Total Distance Traveled

Actual driving distance

0 to 16777215

Roughly the same as the actual driving distance

-

Total Distance Traveled - Unit

Actual driving distance unit

km or mile

Displays the current actual driving distance unit

-

AHB/AHS Information

Automatic high beam system or adaptive high beam system specification information

Unknown, AHB or AHS

Unknown: Specification not stored

AHB: w/ Automatic High Beam System

AHS: w/ Adaptive High Beam System

-

Chassis > Front Recognition Camera > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Front Recognition Camera High Temperature 2

Whether high temperature malfunction of forward recognition camera exists or not

Not High Temperature or High Temperature

Not High Temperature: Approximately 65°C (149°F) or less

High Temperature: Approximately 65°C (149°F) or higher

If this item is "High Temperature", the automatic high beam system will be temporarily unavailable. If this does not improve even if the inside of the vehicle is left cooled for at least 10 minutes, the forward recognition camera may be malfunctioning.

HINT:

In summertime, the windshield glass may reach 100°C (212°F) or higher

ACTIVE TEST

HINT:

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus:

(1) Body Electrical / AFS / Active Test.

(2) Body Electrical / Main Body / Active Test.

(e) According to the display on the Techstream, perform the Active Test.

Body Electrical > AFS > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Drive The Leveling Motor

Operates the headlight leveling motor

Up, Down or Stop

Perform with the vehicle stopped, power switch on (READY) and low beam headlights illuminated

Clearance Light

Illuminates clearance lights

ON or OFF

-

Headlight Low Beam

Illuminates the low beam headlights

ON or OFF

-

Headlight High Beam

Illuminates the high beam headlights

ON or OFF

-

Daytime Running Light

Illuminates daytime running lights

ON or OFF

-

Cornering Light

Illuminates cornering lights

ON or OFF

-

Body Electrical > Main Body > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Daytime Running Light

Daytime running light

ON or OFF

-

Taillight Relay

Taillight relay

ON or OFF

-

Headlight Relay

Low beam headlight relay

ON or OFF

-

Head Light Hi

Headlight dimmer relay

ON or OFF

-

Front Fog Light Relay

Front fog light relay

ON or OFF

The headlight dimmer switch is in the tail position.

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