Toyota Tundra Service Manual: Problem Symptoms Table

Toyota Tundra Service Manual / Brake / 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 suspected areas for each problem symptom in the order given in the following table and proceed to the relevant troubleshooting page.

NOTICE:

When replacing the skid control ECU (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	Link
ABS warning light abnormal (Remains on)	Refer to the procedure for "ABS Warning Light Remains ON"
ABS warning light abnormal (Does not come on)	Refer to the procedure for "ABS Warning Light does not Come ON"
Brake warning light abnormal (Remains on)	Refer to the procedure for "Brake Warning Light Remains ON"
Brake warning light abnormal (Does not come on)	Refer to the procedure for "Brake Warning Light does not Come ON"
Slip indicator light abnormal (Remains on)	Refer to the procedure for "Slip Indicator Light Remains ON"
Slip indicator light abnormal (Does not come on)	Refer to the procedure for "Slip Indicator Light does not Come ON"
Excessive brake pedal travel (No fluid leaks and no air in system)	Refer to the procedure for "Excessive Brake Pedal Travel (No Fluid Leaks and No Air in System)"
ABS does not operate	Refer to the procedure for "ABS does not Operate"
ABS operates before necessary when braking	Refer to the procedure for "ABS Operates Before Necessary When Braking"
VSC does not operate or VSC does not operate correctly	Refer to the procedure for "VSC does not Operate or VSC does not Operate Correctly"
Brake actuator operation sound is loud during initial check	Refer to the procedure for "Brake Actuator Operation Sound is Loud during Initial Check"
VSC OFF switch (traction control switch) abnormal	Refer to the procedure for "VSC OFF Switch Circuit"

Precaution

Slip Indicator Light does not Come ON

See More:

Toyota Tundra Service Manual > Trailer Brake Control System: Freeze Frame Data
FREEZE FRAME DATA FREEZE FRAME DATA/INFORMATION (a) When a DTC is stored, the trailer brake control ECU (brake control with bracket relay) stores the current vehicle state as Freeze Frame Data. HINT: Freeze Frame Data at the time a DTC is stored: When the trailer brake control ECU (brake control wit ...

Toyota Tundra Service Manual: Problem Symptoms Table

Precaution

Slip Indicator Light does not Come ON

See More:

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