| Last Modified: 11-27-2007 | 1.6 U | |
| Service Category: Brake | Section: Brake Control/Dynamic Control System | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000001DWY00LX |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DATA LIST / ACTIVE TEST (2008 LX570) | ||
DATA LIST / ACTIVE TEST
1. 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) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Chassis / ABS/VSC/TRAC / Data List.
(e) According to the display on the Techstream, read the Data List.
ABS/VSC/TRAC
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
ABS Warning Lamp |
ABS warning light / ON or OFF |
ON: Warning light on OFF: Warning light off |
- |
|
VSC Warning Lamp |
Master warning light and multi-information display / ON or OFF |
ON: Warning light on OFF: Warning light off |
- |
|
Brake Warning Lamp |
Brake warning light / red (malfunction) / ON or OFF |
ON: Warning light on OFF: Warning light off |
- |
|
Slip Indicator Lamp |
Slip indicator light / ON or OFF |
ON: Indicator light on OFF: Indicator light off |
- |
|
Buzzer |
Skid control buzzer / ON or OFF |
ON: Buzzer on OFF: Buzzer off |
- |
|
Stop Lamp SW |
Stop light switch / 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 normal OFF: Reservoir level low |
- |
|
Main Idle SW |
Main idle switch / ON or OFF |
ON: Accelerator pedal released OFF: Accelerator pedal depressed |
- |
|
Gear Position |
Gear position / FAIL, 1st, 2nd, 3rd, 4th, 5th, 6th, P,N, R, NOT R |
Actual gear position |
- |
|
Shift Lever Position |
Shift lever position / FAIL, 1st, 2nd, 3rd, 4th, 5th, 6th/B, D/M, P,N, R |
Actual shift lever position |
- |
|
Shift Information |
Shift information / OFF or ON |
OFF: When not shifting ON: When shifting |
- |
|
Pre Crash Brake OFF SW |
- |
OFF |
- |
|
Master Cylinder Sensor |
Master cylinder pressure sensor reading / min.: 0 V, max.: 5 V |
When brake pedal released: 0.3 to 0.9 V |
The reading increases when the brake pedal is depressed. |
|
Zero Point of M/C |
Memorized zero value / min.: -12.5 MPa, max.: 12.4 MPa |
Min.: -12.5 MPa Max.: 12.4 MPa |
- |
|
Zero Point of M/C2 |
Memorized zero value / min.: -12.5 MPa, max.: 12.4 MPa |
Min.: -12.5 MPa Max.: 12.4 MPa |
- |
|
Accumulator Sensor |
Accumulator pressure sensor reading / min.: 0 V, max.: 5 V |
3.58 to 5 V |
If the value is constant regardless of the pump operation, an accumulator pressure sensor malfunction is suspected. |
|
Deceleration Sensor |
Deceleration sensor reading / min.: -18.52 m/s2, max.: 18.39 m/s2 |
Approximately -1.28 to 1.27 m/s2 while stationary |
The reading changes when the vehicle is bounced. |
|
Zero Point of Decele |
Memorized zero value / min.: -25.11 m/s2, max.: 24.91 m/s2 |
Min.: -14.7 m/s2 Max.: 14.7 m/s2 |
- |
|
Deceleration Sensor2 |
Deceleration sensor 2 reading / min.: -18.52 m/s2, max.: 18.39 m/s2 |
Approximately -1.28 to 1.27 m/s2 while stationary |
The reading changes when the vehicle is bounced. |
|
Zero Point of Decele2 |
Memorized zero value / min.: -25.11 m/s2, max.: 24.91 m/s2 |
Min.: -14.7 m/s2 Max.: 14.7 m/s2 |
- |
|
Yaw Rate Sensor |
Yaw rate sensor 1 / min.: -128 deg/s, max.: 127 deg/s |
Min.: -100 deg/s Max.: 100 deg/s |
- |
|
Zero Point of Yaw Rate |
Memorized zero value / min.: -128 deg/s, max.: 127 deg/s |
Min.: -100 deg/s Max.: 100 deg/s |
- |
|
Yaw Rate Sensor2 |
Yaw rate sensor 2 / min.: -128 deg/s, max.: 127 deg/s |
Min.: -100 deg/s Max.: 100 deg/s |
- |
|
Zero Point of Yaw Rate2 |
Memorized zero value / min.: -128 deg/s, max.: 127 deg/s |
Min.: -100 deg/s Max.: 100 deg/s |
- |
|
Steering Angle Sensor |
Steering angle sensor / min.: -3276.8 deg, max.: 3276.7 deg |
Left turn: Increases Right turn: Decreases |
- |
|
Zero Point of Steering Angle |
Memorized zero value / min.: -3276.8 deg, max.: 3276.7 deg |
Min.: -3072.0 deg Max.: 3070.5 deg |
- |
|
Lateral G |
Lateral G / min.: -25.11 m/s2, max.: 24.91 m/s2 |
Min.: -14.7 m/s2 Max.: 14.7 m/s2 |
- |
|
Forward and Rearward G |
Forward and rearward G / min.: -25.11 m/s2, max.: 24.91 m/s2 |
Min.: -14.7 m/s2 Max.: 14.7 m/s2 |
- |
|
Yaw Rate Value |
Yaw rate value / min.: -128 deg/s, max.: 127 deg/s |
Min.: -100 deg/s Max.: 100 deg/s |
- |
|
Steering Angle Value |
Steering angle value / min.: -3276.8 deg, max.: 3276.7 deg |
Min.: -3072.0 deg Max.: 3070.5 deg |
- |
|
Stop Light Relay |
BRK LP relay / ON or OFF |
ON: Relay on OFF: Relay off |
- |
|
Crawl Control Switch |
CRAWL speed selector switch status / LOW, MID, HIGH, UNKNOWN |
Actual CRAWL speed selector switch position |
- |
|
Crawl Control Light |
CRAWL indicator light / ON or OFF |
ON: Indicator light on OFF: Indicator light off |
- |
|
FR Wheel Speed |
Front wheel speed sensor RH reading / min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph) |
Actual wheel speed |
A similar speed is indicated on the speedometer. |
|
FL Wheel Speed |
Front wheel speed sensor LH reading / min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph) |
Actual wheel speed |
A similar speed is indicated on the speedometer. |
|
RR Wheel Speed |
Rear wheel speed sensor RH reading / min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph) |
Actual wheel speed |
A similar speed is indicated on the speedometer. |
|
RL Wheel Speed |
Rear wheel speed sensor LH reading / min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph) |
Actual wheel speed |
A similar speed is indicated on the speedometer. |
|
Vehicle Speed |
Maximum wheel speed sensor reading / min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph) |
Actual vehicle speed |
The speed is indicated on the speedometer. |
|
FR Wheel Acceleration |
Front wheel acceleration RH / min.: -200.84 m/s2, max.: 199.27 m/s2 |
Min.: -200.84 m/s2 Max.: 199.27 m/s2 |
- |
|
FL Wheel Acceleration |
Front wheel acceleration LH / min.: -200.84 m/s2, max.: 199.27 m/s2 |
Min.: -200.84 m/s2 Max.: 199.27 m/s2 |
- |
|
RR Wheel Acceleration |
Rear wheel acceleration RH / min.: -200.84 m/s2, max.: 199.27 m/s2 |
Min.: -200.84 m/s2 Max.: 199.27 m/s2 |
- |
|
RL Wheel Acceleration |
Rear wheel acceleration LH / min.: -200.84 m/s2, max.: 199.27 m/s2 |
Min.: -200.84 m/s2 Max.: 199.27 m/s2 |
- |
|
FR Wheel Direction |
Front wheel direction RH / FORWARD or BACK |
FORWARD: Forward BACK: Back |
- |
|
FL Wheel Direction |
Front wheel direction LH / FORWARD or BACK |
FORWARD: Forward BACK: Back |
- |
|
RR Wheel Direction |
Rear wheel direction RH / FORWARD or BACK |
FORWARD: Forward BACK: Back |
- |
|
RL Wheel Direction |
Rear wheel direction LH / FORWARD or BACK |
FORWARD: Forward BACK: Back |
- |
|
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 |
Pre-collision brake assist control status / ON or OFF |
ON: During control OFF: Not during control |
- |
|
TRC (TRAC) Ctrl Status |
A-TRAC control status / ON or OFF |
ON: During control OFF: Not during control |
- |
|
TRC (TRAC) Engine Ctrl Status |
A-TRAC engine control status / ON or OFF |
ON: During control OFF: Not during control |
- |
|
TRC (TRAC) Brake Ctrl Status |
A-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 |
- |
|
Engine Revolutions |
Engine speed / min.: 0 r/min, max.: 65535 r/min |
Actual engine speed |
- |
|
Real Engine Torque |
Real engine torque / min.: -1024 N*m, max.: 1023 N*m |
Actual engine torque |
- |
|
Accelerator Opening Angle % |
Percentage of accelerator pedal opening angle / min.: 0%, max.: 128% |
Min.: 0% Max.: 100% |
- |
|
Solenoid Relay |
Solenoid relay / ON or OFF |
ON: Solenoid relay on OFF: Solenoid relay off |
- |
|
Electronically Controlled Brake System Motor Relay |
Electronically controlled brake system motor relay / ON or OFF |
ON: Motor relay on OFF: Motor relay off |
- |
|
TR(A)C/VSC Solenoid (SRM2) |
TRAC/VSC solenoid (SRM2) / ON or OFF |
ON: Operates OFF: Does not operate |
- |
|
TR(A)C/VSC Solenoid (SRM1) |
TRAC/VSC solenoid (SRM1) / ON or OFF |
ON: Operates OFF: Does not operate |
- |
|
TR(A)C/VSC Solenoid (SRC2) |
TRAC/VSC solenoid (SRC2) / ON or OFF |
ON: Operates OFF: Does not operate |
- |
|
TR(A)C/VSC Solenoid (SRC1) |
TRAC/VSC solenoid (SRC1) / ON or OFF |
ON: Operates OFF: Does not operate |
- |
|
ABS Solenoid (SFRH) |
ABS solenoid (SFRH) / ON or OFF |
ON: Operates OFF: Does not operate |
- |
|
ABS Solenoid (SFRR) |
ABS solenoid (SFRR) / ON or OFF |
ON: Operates OFF: Does not operate |
- |
|
ABS Solenoid (SFLH) |
ABS solenoid (SFLH) / ON or OFF |
ON: Operates OFF: Does not operate |
- |
|
ABS Solenoid (SFLR) |
ABS solenoid (SFLR) / ON or OFF |
ON: Operates OFF: Does not operate |
- |
|
ABS Solenoid (SRRH) |
ABS solenoid (SRRH) / ON or OFF |
ON: Operates OFF: Does not operate |
- |
|
ABS Solenoid (SRRR) |
ABS solenoid (SRRR) / ON or OFF |
ON: Operates OFF: Does not operate |
- |
|
ABS Solenoid (SRLH) |
ABS solenoid (SRLH) / ON or OFF |
ON: Operates OFF: Does not operate |
- |
|
ABS Solenoid (SRLR) |
ABS solenoid (SRLR) / ON or OFF |
ON: Operates OFF: Does not operate |
- |
|
FR Speed Open |
Front speed sensor RH open detection / ERROR or NORMAL |
ERROR: Momentary interruption NORMAL: Normal |
- |
|
FL Speed Open |
Front speed sensor LH open detection / ERROR or NORMAL |
ERROR: Momentary interruption NORMAL: Normal |
- |
|
RR Speed Open |
Rear speed sensor RH open detection / ERROR or NORMAL |
ERROR: Momentary interruption NORMAL: Normal |
- |
|
RL Speed Open |
Rear speed sensor LH open detection / ERROR or NORMAL |
ERROR: Momentary interruption NORMAL: Normal |
- |
|
EFI Communication Open |
ECM communication open detection / ERROR or NORMAL |
ERROR: Momentary interruption NORMAL: Normal |
- |
|
Yaw Rate Open |
Yaw rate sensor open detection / ERROR or NORMAL |
ERROR: Momentary interruption NORMAL: Normal |
- |
|
Deceleration Open |
Deceleration sensor open detection / ERROR or NORMAL |
ERROR: Momentary interruption NORMAL: Normal |
- |
|
Steering Open |
Steering angle sensor open detection / ERROR or NORMAL |
ERROR: Momentary interruption NORMAL: Normal |
- |
|
IG1 Voltage Value |
IG1 voltage value / min.: 0 V, max.: 255 V |
9.5 to 14.0 V |
- |
|
TRC/VSC Off Mode |
A-TRAC and VSC OFF mode status / NORMAL, TRC OFF or VSC OFF |
NORMAL: Normal TRC OFF: A-TRAC OFF mode VSC OFF: VSC OFF mode |
- |
|
Number of DTC |
Number of DTCs / min.: 0, max.: 255 |
Min.: 0 Max.: 255 |
- |
2. 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 engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Chassis / ABS/VSC/TRAC / Active Test.
(e) According to the display on the Techstream, perform the Active Test.
ABS/VSC/TRAC
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
ABS Warning Lamp |
ABS warning light |
Warning light ON/OFF |
Observe the combination meter. |
|
VSC Warning Lamp |
VSC OFF indicator |
Indicator ON/OFF |
Observe the combination meter. |
|
Brake Warning Lamp |
Brake warning light |
Warning light ON/OFF |
Observe the combination meter. |
|
Slip Indicator Lamp |
Slip indicator light |
Indicator light ON/OFF |
Observe the combination meter. |
|
Buzzer |
Skid control buzzer |
Buzzer ON/OFF |
The buzzer can be heard. |
|
Solenoid Relay |
Solenoid relay |
Relay ON/OFF |
An operation sound of the solenoid (clicking sound) can be heard. |
|
Motor Relay |
Motor relay |
Relay ON/OFF |
An operation sound of the motor can be heard. |
|
Stop Lamp Relay |
BRK LP relay |
Relay ON/OFF |
Observe the rear combination light (Does not come on for 5 seconds or more). |
|
ABS Solenoid (SRLR) |
ABS solenoid (SRLR) |
Solenoid ON/OFF |
An operation sound of the solenoid (clicking sound) can be heard. |
|
ABS Solenoid (SRLH) |
ABS solenoid (SRLH) |
Solenoid ON/OFF |
An operation sound of the solenoid (clicking sound) can be heard. |
|
ABS Solenoid (SRRR) |
ABS solenoid (SRRR) |
Solenoid ON/OFF |
An operation sound of the solenoid (clicking sound) can be heard. |
|
ABS Solenoid (SRRH) |
ABS solenoid (SRRH) |
Solenoid ON/OFF |
An operation sound of the solenoid (clicking sound) can be heard. |
|
ABS Solenoid (SFLR) |
ABS solenoid (SFLR) |
Solenoid ON/OFF |
An operation sound of the solenoid (clicking sound) can be heard. |
|
ABS Solenoid (SFLH) |
ABS solenoid (SFLH) |
Solenoid ON/OFF |
An operation sound of the solenoid (clicking sound) can be heard. |
|
ABS Solenoid (SFRR) |
ABS solenoid (SFRR) |
Solenoid ON/OFF |
An operation sound of the solenoid (clicking sound) can be heard. |
|
ABS Solenoid (SFRH) |
ABS solenoid (SFRH) |
Solenoid ON/OFF |
An operation sound of the solenoid (clicking sound) can be heard. |
|
VSC/TRC Solenoid (SRMR) |
VSC/TRAC solenoid (SRMR (SMCR, STR)) |
Solenoid ON/OFF |
An operation sound of the solenoid (clicking sound) can be heard. |
|
VSC/TRC Solenoid (SRMF) |
VSC/TRAC solenoid (SRMF (SMCF, SA3)) |
Solenoid ON/OFF |
An operation sound of the solenoid (clicking sound) can be heard. |
|
VSC/TRC Solenoid (SRCR) |
VSC/TRAC solenoid (SRCR (SA2)) |
Solenoid ON/OFF |
An operation sound of the solenoid (clicking sound) can be heard. |
|
VSC/TRC Solenoid (SRCF) |
VSC/TRAC solenoid (SRCF (SA1)) |
Solenoid ON/OFF |
An operation sound of the solenoid (clicking sound) can be heard. |
|
Crawl Control Light |
CRAWL indicator light |
Indicator light ON/OFF |
Observe the combination meter. |
|
|