Toyota Venza: Problem Symptoms Table

Toyota Venza Service Manual / Brake Control / Dynamic Control Systems / Vehicle Stability Control System / Problem Symptoms Table

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.

NOTICE:

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

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.

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.
	IG power source circuit
	Front speed sensor circuit
	Rear speed sensor circuit
	Check the brake actuator assembly using the Techstream. (Check brake actuator assembly operation using the Active Test function.) If abnormal, check the hydraulic circuit for leaks.
	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).
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
	Check the brake actuator assembly using the Techstream. (Check brake actuator assembly operation using the Active Test function.) If abnormal, check the hydraulic circuit for leaks.
	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).
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 suspected areas has been inspected and proved to be normal, replace the brake actuator assembly (skid control ECU).
ABS warning light abnormal (Remains on).	ABS warning light circuit
ABS warning light abnormal (Remains on).	Brake actuator assembly (Skid control ECU)
ABS warning light abnormal (Does not come on).	ABS warning light circuit
ABS warning light abnormal (Does not come on).	Brake actuator assembly (Skid control ECU)
Brake warning light abnormal (Remains on).	Brake warning light circuit
Brake warning light abnormal (Remains on).	Brake actuator assembly (Skid control ECU)
Brake warning light abnormal (Does not come on).	Brake warning light circuit
Brake warning light abnormal (Does not come on).	Brake actuator assembly (Skid control ECU)
VSC and/or TRAC 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 and acceleration sensor circuit
	Steering angle sensor circuit
	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).
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 brake actuator assembly (skid control ECU).
TRAC OFF indicator light abnormal (Remains on).	TRAC OFF indicator light circuit
TRAC OFF indicator light abnormal (Remains on).	Brake actuator assembly (Skid control ECU)
TRAC OFF indicator light abnormal (Does not come on).	TRAC OFF indicator light circuit
TRAC OFF indicator light abnormal (Does not come on).	Brake actuator assembly (Skid control ECU)
VSC OFF indicator light abnormal (Remains on).	VSC OFF indicator light circuit
VSC OFF indicator light abnormal (Remains on).	Brake actuator assembly (Skid control ECU)
VSC OFF indicator light abnormal (Does not come on).	VSC OFF indicator light circuit
VSC OFF indicator light abnormal (Does not come on).	Brake actuator assembly (Skid control ECU)
Slip indicator light abnormal (Remains on).	Slip indicator light circuit
Slip indicator light abnormal (Remains on).	Brake actuator assembly (Skid control ECU)
Slip indicator light abnormal (Does not come on).	Slip indicator light circuit
Slip indicator light abnormal (Does not come on).	Brake actuator assembly (Skid control ECU)
Sensor check cannot be done.	TS and CG terminal circuit
Sensor check cannot be done.	Brake actuator assembly (Skid control ECU)
Meter buzzer abnormal.	Meter buzzer circuit
Meter buzzer abnormal.	Brake actuator assembly (Skid control ECU)

Test Mode Procedure

TEST MODE PROCEDURE 1. WARNING LIGHT AND INDICATOR LIGHT INITIAL CHECK (a) Release the parking brake. NOTICE: Before releasing the parking brake, move the shift lever to P for safety. HINT: When ...

Terminals Of Ecu

TERMINALS OF ECU 1. TERMINALS OF ECU Text in Illustration *1 Component without harness connected (Brake Actuator (Skid Control ECU)) Terminal No. (Sym ...

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