Toyota Sienna Service Manual: ABS Warning Light does not Come ON

Toyota Sienna Service Manual / Brake control / Vehicle stability control system / Diagnostic trouble code chart / ABS Warning Light does not Come ON

WIRING DIAGRAM

Refer to ABS Warning Light Remains ON (See page BC-141).

INSPECTION PROCEDURE

1 CHECK ABS WARNING LIGHT

(a) Disconnect the skid control ECU connector.

(b) Turn the ignition switch to the ON position.

OK: ABS warning light comes on.

HINT: If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step (See page BC-79).

REPLACE BRAKE ACTUATOR ASSEMBLY

2 CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER)

(a) Turn the ignition switch off.

(b) Disconnect the combination meter connector.

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER)

Standard resistance

3 INSPECT COMBINATION METER ASSEMBLY

(a) Check the combination meter (See page ME-4).

HINT: If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step (See page BC-79).

END

ABS Warning Light Remains ON

DESCRIPTION If any of the following is detected, the ABS warning light remains on. The skid control ECU connectors are disconnected from the skid control ECU. There is a malfunction in the s ...

VSC Warning Light Remains ON

DESCRIPTION The skid control ECU is connected to the combination meter via CAN and multiplex communications. If the skid control ECU stores DTCs to shut down TRAC and VSC operation, the VSC wa ...

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