Toyota Venza manuals

Toyota Venza: 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


Brake actuator assembly (Skid control ECU)


ABS warning light abnormal (Does not come on).

ABS warning light circuit


Brake actuator assembly (Skid control ECU)


Brake warning light abnormal (Remains on).

Brake warning light circuit


Brake actuator assembly (Skid control ECU)


Brake warning light abnormal (Does not come on).

Brake warning light circuit


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.

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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


Brake actuator assembly (Skid control ECU)


TRAC OFF indicator light abnormal (Does not come on).

TRAC OFF indicator light circuit


Brake actuator assembly (Skid control ECU)


VSC OFF indicator light abnormal (Remains on).

VSC OFF indicator light circuit


Brake actuator assembly (Skid control ECU)


VSC OFF indicator light abnormal (Does not come on).

VSC OFF indicator light circuit


Brake actuator assembly (Skid control ECU)


Slip indicator light abnormal (Remains on).

Slip indicator light circuit


Brake actuator assembly (Skid control ECU)


Slip indicator light abnormal (Does not come on).

Slip indicator light circuit


Brake actuator assembly (Skid control ECU)


Sensor check cannot be done.

TS and CG terminal circuit


Brake actuator assembly (Skid control ECU)


Meter buzzer abnormal.

Meter buzzer circuit


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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