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Toyota Sienna Service Manual: Slip Indicator Light does not Come ON

DESCRIPTION

The skid control ECU is connected to the combination meter via CAN and multiplex communications.

The SLIP indicator blinks during VSC and/or TRAC operation.

When the system fails, the SLIP indicator comes on to warn the driver.

WIRING DIAGRAM

Refer to Slip Indicator Light Remains ON (See page BC-164).

INSPECTION PROCEDURE

NOTICE: When replacing the brake actuator assembly, perform zero point calibration (See page BC-70).

1 CHECK CAN COMMUNICATION SYSTEM

(a) Check if the CAN communication system DTC is output (See page CA-17).

Result

2 CHECK MULTIPLEX COMMUNICATION SYSTEM

(a) Check if the multiplex communication system DTC is output (See page MP-14).

Result

3 CHECK SLIP INDICATOR LIGHT

(a) Connect the intelligent tester to the DLC3.

(b) Start the engine.

(c) Select the Active Test mode on the intelligent tester (See page BC-85).

ABS / VSC:

(d) Check that "ON" and "OFF" of the SLIP indicator light are indicated on the combination meter when using the intelligent tester.

OK: The SLIP indicator light turns on or off in accordance with the intelligent tester.

HINT: If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part (See page BC-79).

REPLACE BRAKE ACTUATOR ASSEMBLY

4 INSPECT COMBINATION METER ASSEMBLY

(a) Turn the ignition switch off.

(b) Perform Active Test of the combination meter (meter CPU) using the intelligent tester (See page ME-19).

OK: The SLIP indicator light turns on or off in accordance with the intelligent tester.

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

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