How To Proceed With Troubleshooting
WARNING: This page is about a different car, the 2006 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
- VEHICLE BROUGHT TO WORK SHOP
- CUSTOMER PROBLEM ANALYSIS (See CUSTOMER PROBLEM ANALYSIS CHECK )
- 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 )
- DTC CHECK (See PRE-CHECK )
MALFUNCTION CODE (GO TO STEP 5 )
NORMAL CODE (GO TO STEP 6 )
- See DIAGNOSTIC TROUBLE CODE TABLE
GO TO STEP 8
- See PROBLEM SYMPTOMS TABLE
- See TERMINALS OF ECU
- CIRCUIT INSPECTION (See DTC B1244 LIGHT SENSOR CIRCUIT MALFUNCTION - LIGHT AUTO TURN OFF SYSTEM LIGHT DOES NOT OPERATE )
- IDENTIFICATION OF PROBLEM
- REPAIR OR REPLACE
- CONFIRMATION TEST