How To Proceed With Troubleshooting
WARNING: This page is about a different car, the 2005 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
- VEHICLE BROUGHT TO WORK SHOP
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- CUSTOMER PROBLEM ANALYSIS CHECK
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- CHECK BODY MULTIPLEX COMMUNICATION SYSTEM (See HOW TO PROCEED WITH TROUBLESHOOTING
)
- Check that the DTC outputs.
- DTC OUTPUTS (PROCEED TO "BODY MULTIPLEX COMMUNICATION SYSTEM")
- DTC DOES NOT OUTPUT (GO TO STEP 4)
- Check that the DTC outputs.
- DTC CHECK (See PRE-CHECK
)
- MALFUNCTION CODE (GO TO STEP 5)
- NORMAL CODE (GO TO STEP 6 )
- DIAGNOSTIC TROUBLE CODE CHART
- GO TO STEP 8
- PROBLEM SYMPTOMS TABLE
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- TERMINALS OF ECU
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- CIRCUIT INSPECTION (See DTC B1244 LIGHT SENSOR CIRCUIT MALFUNCTION
- LIGHT AUTO TURN OFF SYSTEM LIGHT DOES NOT OPERATE
)
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- IDENTIFICATION OF PROBLEM
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- REPAIR OR REPLACE
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- CONFIRMATION TEST
END