VEHICLE STABILITY CONTROL SYSTEM PROBLEM SYMPTOMS TABLE
Tech Tips
-
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.
Note
When replacing the master cylinder or sensor, turn the engine switch off.
| Symptom | Suspected Area | See page |
|---|---|---|
| ABS, BA and/or EBD does not operate | Check for DTCs again and make sure that no DTC is output | |
| IG power source circuit | ||
| Front speed sensor circuit | ||
| Rear speed sensor circuit | ||
| Master cylinder pressure sensor (check master cylinder pressure sensor by performing test mode inspection) | ||
| for LHD: Check hydraulic brake booster with GTS. If abnormal, check hydraulic circuit for leakage. | ||
| for RHD: Check hydraulic brake booster with GTS. If abnormal, check hydraulic circuit for leakage. | ||
| for LHD: If symptoms still occur even after above circuits in suspected areas are inspected and proved to be normal, replace master cylinder solenoid | ||
| for RHD: If symptoms still occur even after above circuits in suspected areas are inspected and proved to be normal, replace master cylinder solenoid | ||
| ABS, BA and/or EBD does not operate efficiently | Check for DTCs again and make sure that no DTC is output | |
| Front speed sensor circuit | ||
| Rear speed sensor circuit | ||
| Stop light switch circuit | ||
| Master cylinder pressure sensor (check master cylinder pressure sensor by performing test mode inspection) | ||
| for LHD: Check hydraulic brake booster with GTS. If abnormal, check hydraulic circuit for leakage. | ||
| for RHD: Check hydraulic brake booster with GTS. If abnormal, check hydraulic circuit for leakage. | ||
| for LHD: If symptoms still occur even after above circuits in suspected areas are inspected and proved to be normal, replace master cylinder solenoid | ||
| for RHD: If symptoms still occur even after above circuits in suspected areas are inspected and proved to be normal, replace master cylinder solenoid | ||
| VSC and/or TRC does not operate | Check for DTCs again and make sure that no DTC is output | |
| IG power source circuit | ||
| Front speed sensor circuit | ||
| Rear speed sensor circuit | ||
| Yaw rate sensor circuit | ||
| Steering sensor circuit | ||
| for LHD: If symptoms still occur even after above circuits in suspected areas are inspected and proved to be normal, replace master cylinder solenoid | ||
| for RHD: If symptoms still occur even after above circuits in suspected areas are inspected and proved to be normal, replace master cylinder solenoid | ||
| Sensor and switch signal check cannot be performed | TS and CG terminal circuit | |
| for LHD: Skid control ECU (Master cylinder solenoid) | ||
| for RHD: Skid control ECU (Master cylinder solenoid) | ||
| DTC check cannot be performed | Check for DTCs again and make sure that no DTC is output | |
| TC and CG terminal circuit | ||
| IG power source circuit (high power supply voltage malfunction) | ||
| for LHD: 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 | ||
| for RHD: 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 | ||
| ABS warning light abnormal (Remains on) | ABS warning light circuit | |
| IG power source circuit (high power supply voltage malfunction) | ||
| for LHD: Skid control ECU (Master cylinder solenoid) | ||
| for RHD: Skid control ECU (Master cylinder solenoid) | ||
| ABS warning light abnormal (Does not come on) | ABS warning light circuit | |
| for LHD: Skid control ECU (Master cylinder solenoid) | ||
| for RHD: Skid control ECU (Master cylinder solenoid) | ||
| Brake warning light abnormal (Remains on) | Brake warning light circuit | |
| IG power source circuit (high power supply voltage malfunction) | ||
| for LHD: Skid control ECU (Master cylinder solenoid) | ||
| for RHD: Skid control ECU (Master cylinder solenoid) | ||
| Brake warning light abnormal (Does not come on) | Brake warning light circuit | |
| for LHD: Skid control ECU (Master cylinder solenoid) | ||
| for RHD: Skid control ECU (Master cylinder solenoid) | ||
| Slip indicator light abnormal (Remains on) | Slip indicator light circuit | |
| IG power source circuit (high power supply voltage malfunction) | ||
| for LHD: Skid control ECU (Master cylinder solenoid) | ||
| for RHD: Skid control ECU (Master cylinder solenoid) | ||
| Slip indicator light abnormal (Does not come on) | Slip indicator light circuit | |
| for LHD: Skid control ECU (Master cylinder solenoid) | ||
| for RHD: Skid control ECU (Master cylinder solenoid) | ||
| VSC OFF indicator light abnormal (Remains on) | VSC OFF indicator light circuit | |
| for LHD: Skid control ECU (Master cylinder solenoid) | ||
| for RHD: Skid control ECU (Master cylinder solenoid) | ||
| VSC OFF indicator light abnormal (Does not come on) | VSC OFF indicator light circuit | |
| for LHD: Skid control ECU (Master cylinder solenoid) | ||
| for RHD: Skid control ECU (Master cylinder solenoid) | ||
| Skid control buzzer abnormal* | Skid control buzzer circuit | |
| Buzzer abnormal | VSC buzzer circuit | |
| TRC OFF indicator light abnormal (Remains on) | TRC OFF indicator light circuit | |
| for LHD: Skid control ECU (Master cylinder solenoid) | ||
| for RHD: Skid control ECU (Master cylinder solenoid) | ||
| TRC OFF indicator light abnormal (Does not come on) | TRC OFF indicator light circuit | |
| for LHD: Skid control ECU (Master cylinder solenoid) | ||
| for RHD: Skid control ECU (Master cylinder solenoid) | ||
| CRAWL indicator light abnormal (Remains on) | CRAWL indicator light circuit | |
| for LHD: Skid control ECU (Master cylinder solenoid) | ||
| for RHD: Skid control ECU (Master cylinder solenoid) | ||
| CRAWL indicator light abnormal (Does not come on) | CRAWL indicator light circuit | |
| for LHD: Skid control ECU (Master cylinder solenoid) | ||
| for RHD: Skid control ECU (Master cylinder solenoid) | ||
| Turn assist indicator light abnormal | Turn assist indicator light circuit | |
| Multi-terrain select indicator light abnormal (Remains on) | Multi-terrain select indicator light circuit | |
| Multi-terrain select indicator light abnormal (Does not come on) | Multi-terrain select indicator light circuit |
-
*: w/ Dynamic Radar Cruise Control System