VEHICLE STABILITY CONTROL SYSTEM > PROBLEM SYMPTOMS TABLE

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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.

NOTICE:

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 (low power supply voltage malfunction)	Click here
	IG power source circuit (high power supply voltage malfunction)	Click here
	Front speed sensor circuit (comparison malfunction)	Click here
	Front speed sensor circuit (open or short malfunction)	Click here
	Front speed sensor circuit (output malfunction)	Click here
	Rear speed sensor circuit (comparison malfunction)	Click here
	Rear speed sensor circuit (open or short malfunction)	Click here
	Rear speed sensor circuit (output malfunction)	Click here
	Check the brake actuator assembly with the intelligent tester. (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 (comparison malfunction)	Click here
	Front speed sensor circuit (open or short malfunction)	Click here
	Front speed sensor circuit (output malfunction)	Click here
	Rear speed sensor circuit (comparison malfunction)	Click here
	Rear speed sensor circuit (open or short malfunction)	Click here
	Rear speed sensor circuit (output malfunction)	Click here
	Stop light switch circuit	Click here
	Check the brake actuator assembly with the intelligent tester. (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 the suspected area 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 (low power supply voltage malfunction)	Click here
	IG power source circuit (high power supply voltage malfunction)	Click here
	Check the hydraulic circuit for leaks.	-
	Front speed sensor circuit (comparison malfunction)	Click here
	Front speed sensor circuit (open or short malfunction)	Click here
	Front speed sensor circuit (output malfunction)	Click here
	Rear speed sensor circuit (comparison malfunction)	Click here
	Rear speed sensor circuit (open or short malfunction)	Click here
	Rear speed sensor circuit (output malfunction)	Click here
	Yaw rate and acceleration sensor circuit (zero point malfunction)	Click here
	Yaw rate and acceleration sensor circuit (power supply malfunction)	Click here
	Acceleration sensor circuit (comparison malfunction)	Click here
	Yaw rate sensor circuit (comparison malfunction)	Click here
	Yaw rate and acceleration sensor circuit (stuck or output malfunction)	Click here
	Yaw rate and acceleration sensor circuit (internal malfunction)	Click here
	Steering angle sensor circuit (zero point malfunction)	Click here
	Steering angle sensor circuit (power supply malfunction)	Click here
	Steering angle sensor circuit (output malfunction)	Click here
	Steering angle sensor circuit (internal malfunction)	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
VSC OFF indicator abnormal (Remains on)	VSC OFF indicator light circuit	Click here
VSC OFF indicator abnormal (Remains on)	Brake actuator assembly (skid control ECU)	Click here
VSC OFF indicator abnormal (Does not come on)	VSC OFF indicator light circuit	Click here
VSC OFF indicator 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
Skid control buzzer abnormal	Skid control buzzer circuit	Click here
Skid control buzzer abnormal	Brake actuator assembly (skid control ECU)	Click here