VEHICLE STABILITY CONTROL SYSTEM PROBLEM SYMPTOMS TABLE

If there are no DTCs output and the problem still occurs, check the circuits for each problem symptom in the order given in the following table and proceed to the relevant troubleshooting page.

Note

When replacing the brake actuator assembly, sensors, etc., turn the ignition switch off.

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.

Vehicle Stability Control System
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.	Click here
	IG power source circuit	Click here
	Front speed sensor circuit	Click here
	Rear speed sensor circuit	Click here
	Check the brake actuator assembly using the GTS. (Check brake actuator assembly operation using the Active Test function.) If abnormal, check the hydraulic circuit for leaks.	Click here
	If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the brake actuator assembly (skid control ECU).	Click here
ABS, BA and/or EBD does not operate efficiently.	Check for DTCs again and make sure that the normal system code is output.	Click here
	Front speed sensor circuit	Click here
	Rear speed sensor circuit	Click here
	Stop light switch circuit	Click here
	Check the brake actuator assembly using the GTS. (Check brake actuator assembly operation using the Active Test function.) If abnormal, check the hydraulic circuit for leaks.	Click here
	If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the brake actuator assembly (skid control ECU).	Click here
ABS sensor DTC check cannot be done.	Check for DTCs again and make sure that the normal system code is output.	Click here
	TC and CG terminal circuit	Click here
	If the symptoms still occur even after the above circuit in suspected areas has been inspected and proved to be normal, replace the brake actuator assembly (skid control ECU).	Click here
ABS warning light abnormal (Remains on).	ABS warning light circuit	Click here
ABS warning light abnormal (Remains on).	Brake actuator assembly (Skid control ECU)	Click here
ABS warning light abnormal (Does not come on).	ABS warning light circuit	Click here
ABS warning light abnormal (Does not come on).	Brake actuator assembly (Skid control ECU)	Click here
Brake warning light abnormal (Remains on).	Brake warning light circuit	Click here
Brake warning light abnormal (Remains on).	Brake actuator assembly (Skid control ECU)	Click here
Brake warning light abnormal (Does not come on).	Brake warning light circuit	Click here
Brake warning light abnormal (Does not come on).	Brake actuator assembly (Skid control ECU)	Click here
VSC and/or TRC does not operate.	Check for DTCs again and make sure that the normal system code is output.	Click here
	IG power source circuit	Click here
	Check the hydraulic circuit for leaks.	-
	Front speed sensor circuit	Click here
	Rear speed sensor circuit	Click here
	Yaw rate and acceleration sensor circuit	Click here
	Steering angle sensor circuit	Click here
	If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the brake actuator assembly (skid control ECU).	Click here
VSC sensor DTC check cannot be done.	Check for DTCs again and make sure that the normal system code is output.	Click here
	TC and CG terminal circuit	Click here
	If the symptoms still occur even after the above circuit in suspected areas has been inspected and proved to be normal, replace the brake actuator assembly (skid control ECU).	Click here
TRC OFF indicator light abnormal (Remains on).	TRC OFF indicator light circuit	Click here
TRC OFF indicator light abnormal (Remains on).	Brake actuator assembly (Skid control ECU)	Click here
TRC OFF indicator light abnormal (Does not come on).	TRC OFF indicator light circuit	Click here
TRC OFF indicator light abnormal (Does not come on).	Brake actuator assembly (Skid control ECU)	Click here
VSC OFF indicator light abnormal (Remains on).	VSC OFF indicator light circuit	Click here
VSC OFF indicator light abnormal (Remains on).	Brake actuator assembly (Skid control ECU)	Click here
VSC OFF indicator light abnormal (Does not come on).	VSC OFF indicator light circuit	Click here
VSC OFF indicator light abnormal (Does not come on).	Brake actuator assembly (Skid control ECU)	Click here
Slip indicator light abnormal (Remains on).	Slip indicator light circuit	Click here
Slip indicator light abnormal (Remains on).	Brake actuator assembly (Skid control ECU)	Click here
Slip indicator light abnormal (Does not come on).	Slip indicator light circuit	Click here
Slip indicator light abnormal (Does not come on).	Brake actuator assembly (Skid control ECU)	Click here
Sensor check cannot be done.	TS and CG terminal circuit	Click here
Sensor check cannot be done.	Brake actuator assembly (Skid control ECU)	Click here
Meter buzzer abnormal.	Meter buzzer circuit	Click here
Meter buzzer abnormal.	Brake actuator assembly (Skid control ECU)	Click here