Toyota RAV4 manuals

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

WIRING DIAGRAM

See page BC-47.

INSPECTION PROCEDURE

1 INSPECT ABS WARNING LIGHT

(a) Disconnect the skid control ECU connector.

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

(c) Check that the ABS warning light comes on.

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-7).

REPLACE BRAKE ACTUATOR ASSEMBLY

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

CHECK HARNESS AND CONNECTOR (BETWEEN SKID CONTROL ECU AND COMBINATION METER ASSEMBLY)

(a) Turn the ignition switch off.

(b) Disconnect the combination meter connector.

(c) Measure the resistance according to the value(s) in the table below.

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-7).

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 ...

Brake Warning Light Remains ON
DESCRIPTION If the ECU detects a trouble, it turns on the brake warning light at the same time of prohibiting ABS control. At this time, the ECU records a DTC in memory. Connect terminals TC ...

Other materials:

Parts location
HOW TO PROCEED WITH TROUBLESHOOTING 1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS (a) Confirm problem symptoms. 3 CHECK AND CLEAR DTCS 4 PROBLEM SYMPTOM CONFIRMATION 5 SYMPTOM SIMULATION 6 DTC CHECK (OTHER THAN MULTIPLEX DTC) 7 DTC CHART 8 PROBLEM SYMP ...

Precaution
1. INITIALIZATION NOTICE:  Perform RESET MEMORY (AT initialization) when replacing the automatic transaxle assembly, engine assembly or ECM.  Perform REGISTRATION (VIN registration) when replacing the ECM. HINT: Initialization cannot be completed by only removing the batt ...

Diagnosis system
1. CHECK DLC3 The vehicle's ECU uses ISO 15765-4 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format NOTICE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not oper ...

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