Toyota Venza: TRAC OFF Indicator Light does not Come ON

Toyota Venza Service Manual / Brake Control / Dynamic Control Systems / Vehicle Stability Control System / TRAC OFF Indicator Light does not Come ON

DESCRIPTION

The skid control ECU is connected to the combination meter via CAN communication.

WIRING DIAGRAM

Refer to TRAC OFF Indicator Light Remains ON (See page ).

PROCEDURE

1.	CHECK CAN COMMUNICATION SYSTEM

(a) Check if a CAN communication system DTC is output (See page ).

Result	Proceed to
DTC is not output	A
DTC is output	B

INSPECT CAN COMMUNICATION SYSTEM

2.	PERFORM ACTIVE TEST USING TECHSTREAM (TRAC OFF INDICATOR LIGHT)

(a) Connect the Techstream to the DLC3.

(b) Start the engine.

ABS/VSC/TRAC

Tester Display	Test Part	Control Range	Diagnostic Note
TRC(TRAC) OFF Indicator Light	TRAC OFF indicator light	Indicator light ON/OFF	Observe accessory meter

(d) Check that the TRAC OFF indicator light on the accessory meter turns on or off in accordance with the Techstream operation.

OK:

The TRAC OFF indicator light turns on or off in accordance with the Techstream operation.

HINT:

If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part (See page ).

REPLACE BRAKE ACTUATOR ASSEMBLY

3.	INSPECT COMBINATION METER ASSEMBLY

(a) Turn the ignition switch off.

(b) Turn the ignition switch to ON and check the TRAC OFF indicator light will come on for approximately 3 seconds (initial check).

(d) Check the accessory meter.

Result	Proceed to
OK	A
NG (Initial check is normal, and the TRAC OFF indicator light does not turn on or off in accordance with the Techstream operation)	B
NG (Initial check is abnormal)	C

HINT:

If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step (See page ).

REPLACE BRAKE ACTUATOR ASSEMBLY

REPLACE COMBINATION METER ASSEMBLY

REPLACE ACCESSORY METER ASSEMBLY

TRAC OFF Indicator Light Remains ON

DESCRIPTION The skid control ECU is connected to the combination meter via CAN communication. Pressing the VSC OFF switch turns off traction control and pressing and holding this switch turns off ...

VSC OFF Indicator Light Remains ON

DESCRIPTION The skid control ECU is connected to the combination meter via CAN communication. Pressing the VSC OFF switch turns off traction control and pressing and holding this switch turns off ...

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