| Last Modified: 11-27-2007 | 1.6 T | |
| Service Category: Brake | Section: Brake Control/Dynamic Control System | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000001DWT00MX |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: PROBLEM SYMPTOMS TABLE (2008 LX570) | ||
PROBLEM SYMPTOMS TABLE
If there are no DTCs output but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant "See page".
NOTICE:
When replacing the master cylinder solenoid, sensor, etc., turn the engine switch off.
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Vehicle Stability Control System
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Multi-terrain ABS, BA and/or EBD does not Operate |
Check for DTCs again and make sure that no DTC is output. |
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IG power source circuit |
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Front speed sensor circuit |
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Rear speed sensor circuit |
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Yaw rate and G sensor circuit |
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Check the hydraulic brake booster with Techstream. If abnormal, check the hydraulic circuit for leakage. |
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If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the master cylinder solenoid. |
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Multi-terrain ABS, BA and/or EBD does not Operate Efficiently |
Check for DTCs again and make sure that no DTC is output. |
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Front speed sensor circuit |
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Rear speed sensor circuit |
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Stop light switch circuit |
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Yaw rate and G sensor circuit |
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Check the hydraulic brake booster with Techstream. If abnormal, check the hydraulic circuit for leakage. |
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If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the master cylinder solenoid. |
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VSC, A-TRAC, CRAWL, and/or Hill-start Assist Control does not Operate |
Check for DTCs again and make sure that no DTC is output. |
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IG power source circuit |
|
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Check the hydraulic circuit for leakage |
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Front speed sensor circuit |
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Rear speed sensor circuit |
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Yaw rate and G sensor circuit |
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Steering angle sensor circuit |
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If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the master cylinder solenoid. |
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Sensor and Switch Signal Check cannot be Done |
TS and CG terminal circuit |
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Master cylinder solenoid |
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DTC Check cannot be Done |
Check for DTCs again and make sure that no DTC is output. |
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TC and CG terminal circuit |
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If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the master cylinder solenoid. |
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|
ABS Warning Light Abnormal (Remains On) |
ABS warning light circuit |
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Master cylinder solenoid |
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ABS Warning Light Abnormal (Does not Come On) |
ABS warning light circuit |
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Master cylinder solenoid |
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Brake Warning Light Abnormal (Remains On) |
Brake warning light circuit |
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Brake fluid level warning switch circuit |
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Master cylinder solenoid |
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Brake Warning Light Abnormal (Does not Come On) |
Brake warning light circuit |
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Master cylinder solenoid |
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VSC OFF Indicator Light Abnormal (Remains On) |
Transfer indicator (L4) switch circuit |
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VSC OFF indicator light circuit |
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Center differential lock circuit |
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Master cylinder solenoid |
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VSC OFF Indicator Light Abnormal (Does not Come On) |
Transfer indicator (L4) switch circuit |
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VSC OFF indicator light circuit |
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Master cylinder solenoid |
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CRAWL Indicator Light Abnormal (Remains On) |
CRAWL indicator light circuit |
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Master cylinder solenoid |
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CRAWL Indicator Light Abnormal (Does not Come On) |
CRAWL indicator light circuit |
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Master cylinder solenoid |
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Slip Indicator Light Abnormal (Remains On) |
Slip indicator light circuit |
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Master cylinder solenoid |
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Slip Indicator Light Abnormal (Does not Come On) |
Slip indicator light circuit |
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Master cylinder solenoid |
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Skid Control Buzzer Abnormal |
Skid control buzzer circuit |
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Master cylinder solenoid |
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