VEHICLE STABILITY CONTROL SYSTEM(for TMMF Made) PROBLEM SYMPTOMS TABLE
Tech Tips
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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.
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Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Note
When replacing the skid control ECU (brake actuator assembly), sensor, etc., turn the ignition switch off.
| Symptom | Suspected Area | See page |
|---|---|---|
| ABS, BA and/or EBD does not operate | Check for DTCs again and make sure that the normal system code 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) | ||
| Check the skid control ECU (brake actuator assembly) with the intelligent tester. (Check skid control ECU (brake actuator assembly) operation using the Active Test function.) If abnormal, check the hydraulic circuit for leaks. (for LHD) | ||
| Check the skid control ECU (brake actuator assembly) with the intelligent tester. (Check skid control ECU (brake actuator assembly) operation using the Active Test function.) If abnormal, check the hydraulic circuit for leaks. (for RHD) | ||
| If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (brake actuator assembly). (for LHD) | ||
| If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (brake actuator assembly). (for RHD) | ||
| ABS, BA and/or EBD does not operate efficiently | Check for DTCs again and make sure that the normal system code 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) | ||
| Check the skid control ECU (brake actuator assembly) with the intelligent tester. (Check skid control ECU (brake actuator assembly) operation using the Active Test function.) If abnormal, check the hydraulic circuit for leaks. (for LHD) | ||
| Check the skid control ECU (brake actuator assembly) with the intelligent tester. (Check skid control ECU (brake actuator assembly) operation using the Active Test function.) If abnormal, check the hydraulic circuit for leaks. (for RHD) | ||
| If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (brake actuator assembly). (for LHD) | ||
| If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (brake actuator assembly). (for RHD) | ||
| ABS sensor DTC check cannot be done | Check for DTCs again and make sure that the normal system code is output. | |
| TC and CG terminal circuit | ||
| If the symptoms still occur even after the above circuit in the suspected area has been inspected and proved to be normal, replace the skid control ECU (brake actuator assembly). (for LHD) | ||
| If the symptoms still occur even after the above circuit in the suspected area has been inspected and proved to be normal, replace the skid control ECU (brake actuator assembly). (for RHD) | ||
| ABS warning light abnormal (Remains on) | ABS warning light circuit | |
| Skid control ECU (brake actuator assembly) (for LHD) | ||
| Skid control ECU (brake actuator assembly) (for RHD) | ||
| ABS warning light abnormal (Does not come on) | ABS warning light circuit | |
| Skid control ECU (brake actuator assembly) (for LHD) | ||
| Skid control ECU (brake actuator assembly) (for RHD) | ||
| Brake warning light abnormal (Remains on) | Brake warning light circuit | |
| Skid control ECU (brake actuator assembly) (for LHD) | ||
| Skid control ECU (brake actuator assembly) (for RHD) | ||
| Brake warning light abnormal (Does not come on) | Brake warning light circuit | |
| Skid control ECU (brake actuator assembly) (for LHD) | ||
| Skid control ECU (brake actuator assembly) (for RHD) | ||
| VSC and/or TRC does not operate | Check for DTCs again and make sure that the normal system code is output. | |
| IG power source circuit | ||
| Check the hydraulic circuit for leaks. | - | |
| Front speed sensor circuit | ||
| Rear speed sensor circuit | ||
| Yaw rate sensor (Airbag sensor assembly) circuit | ||
| Steering angle sensor (Spiral cable sub-assembly) circuit | ||
| If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (brake actuator assembly). (for LHD) | ||
| If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (brake actuator assembly). (for RHD) | ||
| VSC sensor DTC check cannot be done | Check for DTCs again and make sure that the normal system code is output. | |
| TC and CG terminal circuit | ||
| If the symptoms still occur even after the above circuit in suspected areas has been inspected and proved to be normal, replace the skid control ECU (brake actuator assembly). (for LHD) | ||
| If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (brake actuator assembly). (for RHD) | ||
| TRC OFF indicator light abnormal (Remains on) | TRC OFF indicator light circuit | |
| Skid control ECU (brake actuator assembly) (for LHD) | ||
| Skid control ECU (brake actuator assembly) (for RHD) | ||
| TRC OFF indicator light abnormal (Does not come on) | TRC OFF indicator light circuit | |
| Skid control ECU (brake actuator assembly) (for LHD) | ||
| Skid control ECU (brake actuator assembly) (for RHD) | ||
| VSC OFF indicator light abnormal (Remains on) | VSC OFF indicator light circuit | |
| Skid control ECU (brake actuator assembly) (for LHD) | ||
| Skid control ECU (brake actuator assembly) (for RHD) | ||
| VSC OFF indicator light abnormal (Does not come on) | VSC OFF indicator light circuit | |
| Skid control ECU (brake actuator assembly) (for LHD) | ||
| Skid control ECU (brake actuator assembly) (for RHD) | ||
| SLIP indicator light abnormal (Remains on) | SLIP indicator light circuit | |
| Skid control ECU (brake actuator assembly) (for LHD) | ||
| Skid control ECU (brake actuator assembly) (for RHD) | ||
| SLIP indicator light abnormal (Does not come on) | SLIP indicator light circuit | |
| Skid control ECU (brake actuator assembly) (for LHD) | ||
| Skid control ECU (brake actuator assembly) (for RHD) | ||
| Sensor check cannot be done | TS and CG terminal circuit | |
| Skid control ECU (brake actuator assembly) (for LHD) | ||
| Skid control ECU (brake actuator assembly) (for RHD) |