Lexus NX: Data List / Active Test
DATA LIST / ACTIVE TEST
DATA LIST
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.
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.
(a) Warm up the engine.
(b) Turn the power switch off.
(c) Connect the Techstream to the DLC3.
(d) Turn the power switch on (IG).
(e) Turn the Techstream on.
(f) Enter the following menus: Chassis / ABS/VSC/TRAC / Data List.
(g) According to the display on the Techstream, read the Data List.
Chassis > ABS/VSC/TRAC > Data List| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| ABS Warning Light | ABS warning light | ON or OFF | ON: Warning light on OFF: Warning light off | - |
| Brake Warning Light | Brake warning light / red (malfunction) | ON or OFF | ON: Warning light on OFF: Warning light off | - |
| ECB Warning Light | Brake warning light / yellow (minor malfunction) | ON or OFF | ON: Warning light on OFF: Warning light off | ECB: Electronically Controlled Brake System |
| Buzzer | Meter buzzer | ON or OFF | ON: Buzzer on OFF: Buzzer off | - |
| Stop Light SW | Stop light switch assembly | ON or OFF | ON: Brake pedal depressed OFF: Brake pedal released | - |
| Parking Brake SW | Parking brake switch | ON or OFF | ON: Parking brake applied OFF: Parking brake released | - |
| Reservoir Warning SW | Brake fluid level warning switch | ON or OFF | ON: Reservoir level low OFF: Reservoir level normal | - |
| Main Idle SW | Main idle switch | ON or OFF | ON: Accelerator pedal released OFF: Accelerator pedal depressed | - |
| Shift Lever Position | Shift position information | Fail, 1st-6th/B, D/M, P,N or R | Actual shift position | - |
| Inspection Mode | Inspection mode | Other or Inspect | Other: Normal mode Inspect: Inspection mode | - |
| Regulator Pressure Sensor Output | Regulator pressure sensor output | Min.: 0.00 V, Max.: 5.00 V | Brake pedal released: 0.10 to 0.90 V | Reading increases when brake pedal is depressed |
| Stroke Sensor | Brake pedal stroke sensor assembly | Min.: 0.00 V, Max.: 5.00 V | Brake pedal released: 0.65 to 1.35 V | Reading increases when brake pedal is depressed |
| Voltage of Stroke Sensor | Voltage of brake pedal stroke sensor assembly | Min.: -2.50 V, Max.: 2.49 V | - | - |
| Stroke Sensor2 | Brake pedal stroke sensor assembly 2 | Min.: 0.00 V, Max.: 5.00 V | Brake pedal released: 3.65 to 4.35 V | Reading decreases when brake pedal is depressed |
| Voltage of Stroke Sensor2 | Voltage of brake pedal stroke sensor assembly 2 | Min.: -2.50 V, Max.: 2.49 V | - | - |
| Accumulator Sensor | Accumulator pressure sensor | Min.: 0.00 V, Max.: 5.00 V | Specified value: 2.90 to 4.20 V | When brake fluid is stored in the accumulator: Accumulator pressure changes in accordance with volume of fluid stored in the accumulator |
| Deceleration Sensor | Acceleration sensor 1 | Min.: -18.525 m/s2, Max.: 18.387 m/s2 | - | During deceleration/acceleration: Changes continuously |
| Zero Point of Decele | Memorized zero value | Min.: -25.10 m/s2, Max.: 24.90 m/s2 | - | - |
| Deceleration Sensor2 | Acceleration sensor 2 | Min.: -18.525 m/s2, Max.: 18.387 m/s2 | - | During deceleration/acceleration: Changes continuously |
| Zero Point of Decele2 | Memorized zero value | Min.: -25.10 m/s2, Max.: 24.90 m/s2 | - | - |
| Yaw Rate Sensor | Yaw rate sensor 1 | Min.: -128 degrees/s, Max.: 127 degrees/s | Vehicle stationary: 0 degrees/s Turning right: -128 to 0 degrees/s Turning left: 0 to 127 degrees/s | - |
| Zero Point of Yaw Rate | Memorized zero value | Min.: -128 degrees, Max.: 127 degrees | - | After completing zero point calibration: 0 degrees |
| Yaw Rate Sensor2 | Yaw rate sensor 2 | Min.: -128 degrees/s, Max.: 127 degrees/s | Vehicle stationary: 0 degrees/s Turning right: -128 to 0 degrees/s Turning left: 0 to 127 degrees/s | - |
| Zero Point of Yaw Rate2 | Memorized zero value | Min.: -128 degrees/s, Max.: 127 degrees/s | - | After completing zero point calibration: 0 degrees/s |
| Steering Angle Sensor | Steering sensor | Min.: -3276.8 degrees, Max.: 3276.7 degrees | Turning left: Increases Turning right: Decreases | - |
| Zero Point of Steering Angle | Memorized zero value | Min.: -3276.8 degrees, Max.: 3276.7 degrees | - | After clearing zero point calibration: 0 degrees |
| Lateral G | Lateral G | Min.: -25.10 m/s2, Max.: 24.90 m/s2 | - | During turning: Changes in proportion with lateral acceleration |
| Forward and Rearward G | Forward and backward G | Min.: -25.10 m/s2, Max.: 24.90 m/s2 | - | During acceleration/deceleration: Changes in proportion with acceleration |
| Yaw Rate Value | Yaw rate value | Min.: -128 degrees/s, Max.: 127 degrees/s | - | During turning: Changes in proportion with yaw |
| Steering Angle Value | Steering angle value | Min.: -3276.8 degrees, Max.: 3276.7 degrees | - | During steering operation: Changes in proportion with steering wheel rotation |
| Slip Indicator Light | Slip indicator light | ON or OFF | ON: Indicator light on OFF: Indicator light off | - |
| FR Wheel Speed | Front speed sensor RH | Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) | Vehicle stopped: 0 km/h (0 mph) | When driving at constant speed: No large fluctuations |
| FL Wheel Speed | Front speed sensor LH | Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) | Vehicle stopped: 0 km/h (0 mph) | When driving at constant speed: No large fluctuations |
| RR Wheel Speed | Rear speed sensor RH | Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) | Vehicle stopped: 0 km/h (0 mph) | When driving at constant speed: No large fluctuations |
| RL Wheel Speed | Rear speed sensor LH | Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) | Vehicle stopped: 0 km/h (0 mph) | When driving at constant speed: No large fluctuations |
| Vehicle Speed | Maximum wheel speed sensor | Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) | Vehicle stopped: 0 km/h (0 mph) | When driving at constant speed: No large fluctuations |
| FR Wheel Acceleration | Front wheel RH acceleration | Min.: -200.84 m/s2, Max.: 199.27 m/s2 | - | During deceleration/acceleration: Changes continuously |
| FL Wheel Acceleration | Front wheel LH acceleration | Min.: -200.84 m/s2, Max.: 199.27 m/s2 | - | During deceleration/acceleration: Changes continuously |
| RR Wheel Acceleration | Rear wheel RH acceleration | Min.: -200.84 m/s2, Max.: 199.27 m/s2 | - | During deceleration/acceleration: Changes continuously |
| RL Wheel Acceleration | Rear wheel LH acceleration | Min.: -200.84 m/s2, Max.: 199.27 m/s2 | - | During deceleration/acceleration: Changes continuously |
| Stop Light Relay Output | Stop light control ECU assembly (stop light control relay) output | ON or OFF | ON: ECU (Relay) Output on OFF: ECU (Relay) Output off | - |
| EBS Relay | Stop light control ECU assembly (Emergency brake signal operation status) | ON or OFF | OFF: Operation off | This item is displayed on the Techstream but is not used |
| FR Wheel ABS Ctrl Status | Front wheel RH ABS control status | ON or OFF | ON: During control OFF: Not during control | - |
| FL Wheel ABS Ctrl Status | Front wheel LH ABS control status | ON or OFF | ON: During control OFF: Not during control | - |
| RR Wheel ABS Ctrl Status | Rear wheel RH ABS control status | ON or OFF | ON: During control OFF: Not during control | - |
| RL Wheel ABS Ctrl Status | Rear wheel LH ABS control status | ON or OFF | ON: During control OFF: Not during control | - |
| RR Wheel EBD Ctrl Status | Rear wheel RH EBD control status | ON or OFF | ON: During control OFF: Not during control | - |
| RL Wheel EBD Ctrl Status | Rear wheel LH EBD control status | ON or OFF | ON: During control OFF: Not during control | - |
| BA Ctrl Status | BA control status | ON or OFF | ON: During control OFF: Not during control | - |
| PBA Ctrl Status | PBA control status | ON or OFF | ON: During control OFF: Not during control | - |
| TRC(TRAC) Ctrl Status | TRAC control status | ON or OFF | ON: During control OFF: Not during control | - |
| TRC(TRAC) Engine Ctrl Status | TRAC engine control status | ON or OFF | ON: During control OFF: Not during control | - |
| TRC(TRAC) Brake Ctrl Status | TRAC brake control status | ON or OFF | ON: During control OFF: Not during control | - |
| FR Wheel VSC Ctrl Status | Front wheel RH VSC control status | ON or OFF | ON: During control OFF: Not during control | - |
| FL Wheel VSC Ctrl Status | Front wheel LH VSC control status | ON or OFF | ON: During control OFF: Not during control | - |
| RR Wheel VSC Ctrl Status | Rear wheel RH VSC control status | ON or OFF | ON: During control OFF: Not during control | - |
| RL Wheel VSC Ctrl Status | Rear wheel LH VSC control status | ON or OFF | ON: During control OFF: Not during control | - |
| Accelerator Opening Angle % | Percentage of accelerator pedal opening angle | Min.: 0.0%, Max.: 128.0% | Accelerator pedal released: 0.0% | During accelerator pedal operation: Changes in proportion with the pedal movement |
| Regenerative Cooperation | Regenerative cooperation | ON or OFF | ON: Operating OFF: Not operating | - |
| FR Regenerative Request | FR regenerative request torque | Min.: 0 Nm, Max.: 1048560 Nm | - | Changes according to brake pedal force (When depressing the brake pedal lightly after reaching 30 km/h (19 mph) or more, avoiding sudden braking.) |
| FR Regenerative Operation | FR regenerative operation torque | Min.: 0 Nm, Max.: 1048560 Nm | - | Changes according to brake pedal force (When depressing the brake pedal lightly after reaching 30 km/h (19 mph) or more, avoiding sudden braking.) |
| ECB Motor Relay | ABS motor relay | ON or OFF | ON: Relay on OFF: Relay off | ECB: Electronically Controlled Brake System |
| ECB Main Relay | ABS main relay | ON or OFF | ON: Relay on OFF: Relay off | ECB: Electronically Controlled Brake System |
| ABS Solenoid (SFRH) | Holding solenoid valve (FRH) | ON or OFF | ON: Operating OFF: Not operating | - |
| ABS Solenoid (SFRR) | Reduction solenoid valve (FRR) | ON or OFF | ON: Operating OFF: Not operating | - |
| ABS Solenoid (SFLH) | Holding solenoid valve (FLH) | ON or OFF | ON: Operating OFF: Not operating | - |
| ABS Solenoid (SFLR) | Reduction solenoid valve (FLR) | ON or OFF | ON: Operating OFF: Not operating | - |
| ABS Solenoid (SRRH) | Holding solenoid valve (RRH) | ON or OFF | ON: Operating OFF: Not operating | - |
| ABS Solenoid (SRRR) | Reduction solenoid valve (RRR) | ON or OFF | ON: Operating OFF: Not operating | - |
| ABS Solenoid (SRLH) | Holding solenoid valve (RLH) | ON or OFF | ON: Operating OFF: Not operating | - |
| ABS Solenoid (SRLR) | Reduction solenoid valve (RLR) | ON or OFF | ON: Operating OFF: Not operating | - |
| ECB Solenoid (SRC) | Regulator cut solenoid valve (SRC) | ON or OFF | ON: Operating OFF: Not operating | ECB: Electronically Controlled Brake System |
| ECB Solenoid (SCC) | Switching solenoid valve (SCC) | ON or OFF | ON: Operating OFF: Not operating | ECB: Electronically Controlled Brake System |
| ECB Solenoid (SMC) | Master cut solenoid valve (SMC) | ON or OFF | ON: Operating OFF: Not operating | ECB: Electronically Controlled Brake System |
| ECB Solenoid (SSC) | Simulator cut solenoid valve (SSC) | ON or OFF | ON: Operating OFF: Not operating | ECB: Electronically Controlled Brake System |
| Regulator Pressure Sensor Correction Voltage | Regulator pressure sensor voltage | Min.: -2.50 V, Max.: 2.49 V | - | - |
| FR Speed Open | Front speed sensor RH open detection | Error or Normal | Normal: Normal | Error: Momentary interruption |
| FL Speed Open | Front speed sensor LH open detection | Error or Normal | Normal: Normal | Error: Momentary interruption |
| RR Speed Open | Rear speed sensor RH open detection | Error or Normal | Normal: Normal | Error: Momentary interruption |
| RL Speed Open | Rear speed sensor LH open detection | Error or Normal | Normal: Normal | Error: Momentary interruption |
| Yaw Rate Open | Yaw rate sensor open detection | Error or Normal | Normal: Normal | Error: Momentary interruption |
| Deceleration Open | Acceleration sensor open detection | Error or Normal | Normal: Normal | Error: Momentary interruption |
| Steering Open | Steering sensor open detection | Error or Normal | Normal: Normal | Error: Momentary interruption |
| Master Cylinder Open | Regulator pressure sensor open detection | Error or Normal | Normal: Normal | Error: Momentary interruption |
| Stroke Open | Brake pedal stroke sensor assembly open detection | Error or Normal | Normal: Normal | Error: Momentary interruption |
| FR Wheel Cylinder Open | Wheel cylinder pressure sensor open detection | Error or Normal | Normal: Normal | Error: Momentary interruption |
| Accumulator Open | Accumulator pressure sensor open detection | Error or Normal | Normal: Normal | Error: Momentary interruption |
| HV Communication Open | Hybrid vehicle communication open detection | Error or Normal | Normal: Normal | Error: Momentary interruption |
| BH Standby Light | Brake hold standby indicator light | ON or OFF | ON: Indicator light on OFF: Indicator light off | - |
| BH Operated Light | Brake hold operated indicator light | ON or OFF | ON: Indicator light on OFF: Indicator light off | - |
| TRAC/VSC Off Mode | TRAC/VSC off mode | Normal, TRAC OFF, Unknown or VSC OFF | Normal: Normal mode TRAC OFF: TRAC off mode VSC OFF: VSC off mode | Unknown: Unspecified |
| Number of DTC | Number of DTC | Min.: 0, Max.: 255 | - | Number of DTCs output is displayed |
| Wheel Cylinder Pressure Sensor | Wheel cylinder pressure sensor | Min.: 0.00 V, Max.: 5.00 V | Brake pedal released: 0.10 to 0.90 V | Reading increases when brake pedal is depressed |
| Regulator Pressure Sensor Output After Filter | Regulator pressure sensor output after filter | Min.: -1.00 Mpa, Max.: 23.99 Mpa | - | - |
| Regulator Pressure Sensor Variation | Regulator pressure sensor variation | Min.: -30 Mpa/s, Max.: 225 Mpa/s | - | - |
| SLA Solenoid Current | Linear solenoid additional valve (SLA) current | Min.: 0.00 A, Max.: 3.00 A | Brake pedal released: 0.00 A | - |
| SLR Solenoid Current | Linear solenoid reduction valve (SLR) current | Min.: 0.00 A, Max.: 3.00 A | Brake pedal released: 0.00 A | - |
| SSC Solenoid Current | Simulator cut solenoid valve (SSC) current | Min.: 0.00 A, Max.: 3.00 A | Brake pedal released: 0.00 A | - |
| SCC Solenoid Current | Switching solenoid valve (SCC) current | Min.: 0.00 A, Max.: 3.00 A | Brake pedal released: 0.00 A | - |
| SMC Solenoid Current | Master cut solenoid valve (SMC) current | Min.: 0.00 A, Max.: 3.00 A | Brake pedal released: 0.00 A | - |
| SRC Solenoid Current | Regulator cut solenoid valve (SRC) current | Min.: 0.00 A, Max.: 3.00 A | Brake pedal released: 0.00 A | - |
| Hazard Switch History | Hazard warning switch history | Incomplete or Complete | - | - |
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) Warm up the engine.
(b) Turn the power switch off.
(c) Connect the Techstream to the DLC3.
(d) Turn the power switch on (IG).
(e) Turn the Techstream on.
(f) Enter the following menus: Chassis / ABS/VSC/TRAC / Active Test.
(g) According to the display on the Techstream, perform the Active Test.
Chassis > ABS/VSC/TRAC > Active Test| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| ABS Warning Light | ABS warning light | Warning light ON/OFF | Observe combination meter assembly |
| Brake Warning Light | Brake warning light / red (malfunction) | Warning light ON/OFF | Observe combination meter assembly |
| ECB Warning Light | Brake warning light / yellow (minor malfunction) | Warning light ON/OFF |
|
| Buzzer | Meter buzzer | Buzzer ON/OFF | Buzzer can be heard |
| Stop Light Relay | Stop light control ECU assembly (stop light control relay) | ECU (Relay) ON/OFF | Stop lights come on |
| ECB Main Relay | ABS main relay | Relay ON/OFF | ECB: Electronically Controlled Brake System |
| ECB Motor Relay | ABS motor relay | Relay ON/OFF | ECB: Electronically Controlled Brake System |
| ABS Solenoid (SRLR) | Reduction solenoid valve (RLR) | Solenoid ON/OFF | - |
| ABS Solenoid (SRLH) | Holding solenoid valve (RLH) | Solenoid ON/OFF | - |
| ABS Solenoid (SRRR) | Reduction solenoid valve (RRR) | Solenoid ON/OFF | - |
| ABS Solenoid (SRRH) | Holding solenoid valve (RRH) | Solenoid ON/OFF | - |
| ABS Solenoid (SFLR) | Reduction solenoid valve (FLR) | Solenoid ON/OFF | - |
| ABS Solenoid (SFLH) | Holding solenoid valve (FLH) | Solenoid ON/OFF | - |
| ABS Solenoid (SFRR) | Reduction solenoid valve (FRR) | Solenoid ON/OFF | - |
| ABS Solenoid (SFRH) | Holding solenoid valve (FRH) | Solenoid ON/OFF | - |
| ECB Control Invalid | Electronically controlled brake system control invalid | Control invalid ON/OFF |
|
| Accumulator Zero Down | Reduction of pressure in accumulator | Activation ON/OFF | Brake fluid in the accumulator makes noise |
| Actuator Air Bleeding Pattern | Actuator air bleeding pattern activation | Activation ON/OFF | When accumulator pressure drops, pump operation creates sound |
| Power Supply Air Bleeding Pattern1 | Power supply air bleeding pattern activation 1 | Activation ON/OFF | When accumulator pressure drops, pump operation creates sound |
| Power Supply Air Bleeding Pattern2 | Power supply air bleeding pattern activation 2 | Activation ON/OFF | When accumulator pressure drops, pump operation creates sound |
| BH Standby Light | Brake hold standby indicator light | Indicator light ON/OFF | Observe combination meter assembly |
| BH Operated Light | Brake hold operated indicator light | Indicator light ON/OFF | Observe combination meter assembly |
| TRC(TRAC) OFF Indicator Light | Multi-information display (TRAC OFF message) | Display ON/OFF | Observe combination meter assembly |
| VSC OFF Indicator Light | VSC OFF indicator light | Indicator light ON/OFF | Observe combination meter assembly |
| Slip Indicator Light | Slip indicator light | Indicator light ON/OFF | Observe combination meter assembly |
| EBS Relay | Stop light control ECU assembly output (Emergency brake signal operation) | Stop light control ECU assembly (Emergency brake signal operation) ON/OFF | This item is displayed on the Techstream but is not used |
| ECB Solenoid (SLR) | Linear solenoid reduction valve (SLR) | Valve close ON/OFF | ECB: Electronically Controlled Brake System |
| ECB Solenoid (SLA) | Linear solenoid additional valve (SLA) | Valve close ON/OFF | ECB: Electronically Controlled Brake System |
| Stroke Simulator Cut Valve Pattern | Simulator cut solenoid valve (SSC) | Pattern activation ON/OFF | Difficult to identify visually |
| ECB Solenoid (SRC) | Regulator cut solenoid valve (SRC) | Solenoid ON/OFF |
|
| ECB Solenoid (SMC) | Master cut solenoid valve (SMC) | Solenoid ON/OFF |
|
| ECB Solenoid (SCC) | Switching solenoid valve (SCC) | Solenoid ON/OFF |
|
| ECB Solenoid (SSC) | Simulator cut solenoid valve (SSC) | Solenoid ON/OFF |
|
| ECB Solenoid (SMC/SRC/SCC) | Switching solenoid valve (SMC/SRC/SCC) | Solenoid ON/OFF |
|
| ABS Solenoid | Solenoid valve (FRH, FRR, FLH, FLR, RRH, RRR, RLH or RLR) | Solenoid SFRH/SFRR/SFLH/SFLR/SRRH/SRRR/SRLH/SRLR | Operation sound of solenoid (clicking sound) can be heard |
READ NEXT:
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Electronically Controlled Brake System DTC No. Detection Item INF Code Note Link C1202 Master Reservoir Level Malfunction 371 - - C1203 EC
Master Reservoir Level Malfunction (C1202)
DESCRIPTION When a fluid level drop in the brake master cylinder reservoir assembly is detected, a signal is sent to the skid control ECU (brake booster with master cylinder assembly). If a DTC for th
ECM Communication Circuit (C1203)
DESCRIPTION This circuit is used to send TRAC and VSC information from the skid control ECU (brake booster with master cylinder assembly) to the hybrid vehicle control ECU, and hybrid control system i
SEE MORE:
Reassembly
REASSEMBLY CAUTION / NOTICE / HINT HINT:
A bolt without a torque specification is shown in the standard bolt chart.
Click here PROCEDURE 1. INSTALL CUSHION (a) Install the cushion. HINT: Use the same procedure as for the LH side. 2. INSTALL BACK DOOR LOWER STOPPER LH (a) When replacing the b
Dtc Check / Clear
DTC CHECK / CLEAR CHECK FOR DTC NOTICE: When using the Techstream with the power switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle t
