Toyota RAV4 manuals

Toyota Sienna Service Manual: Problem symptoms table

HINT: Proceed to the troubleshooting for each circuit in the table below.

AIRBAG SYSTEM

Symptom

Suspected Area

The SRS warning light goes off after the primary check, but then comes on. SRS Warning Light Remains ON
When the ignition switch is turned to the ON position, the SRS warning light sometimes remains on even after approximately 6 seconds. SRS Warning Light Remains ON
The SRS warning light always comes on even when no DTC is output. SRS Warning Light Remains ON
When the ignition switch is turned to the ON position, the SRS warning light does not come on. SRS Warning Light does not Come ON
Although the SRS warning light operates normally, a DTC or a normal system code is not displayed. Diagnosis Circuit
Although terminals TC and CG are not connected, a DTC or normal system code is displayed. Diagnosis Circuit
How to proceed with troubleshooting
HINT: *: Use the intelligent tester. 1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS (a) Confirm problem symptoms 3 CHECK MULTIPLEX COMMUNICATION SYSTEM* Check if the multi ...

Terminals of ECU
1. CENTER AIRBAG SENSOR ASSEMBLY (w/ Side Airbag) 2. CENTER AIRBAG SENSOR ASSEMBLY (w/o Side Airbag) ...

Other materials:

Check for intermittent problems
1. CHECK FOR INTERMITTENT PROBLEMS HINT: For use of the intelligent tester only: Inspect the vehicle's ECM using check mode. Intermittent problems are easier to detect with an intelligent tester when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more ...

Installation
1. INSTALL NO. 2 REAR SEAT OUTER BELT ASSEMBLY NOTICE: Do not disassemble the retractor.  Check the degree of tilt when the No. 2 rear seat outer belt assembly begins to lock the ELR.  Check that the belt does not lock within 15 of tilt in all directions but that the be ...

Terminals of ECU
1. COMBINATION METER ASSEMBLY *1: with Power Rear No. 2 Seat with Stowing Function *2: with Theft Deterrent System  Waveform 1 (Reference) : Using an oscilloscope: OK: HINT: As vehicle speed increases, the cycle of the signal waveform narrows. Wavefor ...

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