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 brake actuator assembly, sensor, etc., turn the ignition switch off.

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 intelligent tester (check brake actuator assembly operation using the Active Test function). If abnormal, check the hydraulic circuit for leakage.	Click here
	If the symptoms still occur even after the above circuits in suspected areas are inspected and prove to be normal, replace the skid control ECU (brake actuator assembly).	Click here
ABS, BA and/or EBD does not operate normally	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 intelligent tester (check brake actuator assembly operation using the Active Test function). If abnormal, check the hydraulic circuit for leakage.	Click here
	If the symptoms still occur even after the above circuits in suspected areas are inspected and prove to be normal, replace the skid control ECU (brake actuator assembly).	Click here
ABS sensor DTC check cannot be performed	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 circuits in suspected areas are inspected and prove to be normal, replace the skid control ECU (brake actuator assembly).	Click here
ABS warning light abnormal (Remains on)	ABS warning light circuit	Click here
ABS warning light abnormal (Remains on)	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)	Skid control ECU	Click here
Brake system warning light (red indicator) abnormal (Remains on)	Brake system warning light (red indicator) circuit	Click here
	Skid control ECU	Click here
Brake system warning light (red indicator) abnormal (Does not come on)	Brake system warning light (red indicator) circuit	Click here
	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 leakage.	-
	Front speed sensor circuit	Click here
	Rear speed sensor circuit	Click here
	Yaw rate sensor circuit	Click here
	Steering angle sensor circuit	Click here
	If the symptoms still occur even after the above circuits in suspected areas are inspected and prove to be normal, replace the skid control ECU (brake actuator assembly).	Click here
VSC sensor DTC check cannot be performed	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 circuits in suspected areas are inspected and prove to be normal, replace the skid control ECU (brake actuator assembly).	Click here
TRC OFF indicator (multi-information display) abnormal (Remains on)	TRC OFF indicator (multi-information display) circuit	Click here
	Skid control ECU	Click here
TRC OFF indicator (multi-information display) abnormal (Does not come on)	TRC OFF indicator (multi-information display) circuit	Click here
	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)	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)	Skid control ECU	Click here
Slip indicator light abnormal (Remains on)	Slip indicator light circuit	Click here
Slip indicator light abnormal (Remains on)	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)	Skid control ECU	Click here
Sensor check cannot be performed	TS and CG terminal circuit	Click here
Sensor check cannot be performed	Skid control ECU	Click here
Skid control buzzer abnormal*	Skid control buzzer circuit	Click here
Skid control buzzer abnormal*	Skid control ECU	Click here

*: w/ Dynamic Radar Cruise Control System