How To Proceed With Troubleshooting
WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.
- VEHICLE BROUGHT TO WORK SHOP
- GO TO NEXT STEP
- CUSTOMER PROBLEM ANALYSIS (See CUSTOMER PROBLEM ANALYSIS CHECK
)
- GO TO NEXT STEP
- CHECK BODY MULTIPLEX COMMUNICATION SYSTEM (See
HOW TO PROCEED WITH TROUBLESHOOTING
)
- Check that the DTC outputs.
- DTC OUTPUTS (PROCEED TO "BODY MULTIPLEX COMMUNICATION SYSTEM" (See HOW TO PROCEED WITH TROUBLESHOOTING ))
- 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 )
- DTC CHART (See DIAGNOSTIC TROUBLE CODE CHART
)
- GO TO STEP 8
- PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE
)
- GO TO NEXT STEP
- TERMINAL OF ECU (See PROBLEM SYMPTOMS TABLE
)
- GO TO NEXT STEP
- CIRCUIT INSPECTION (See CIRCUIT DESCRIPTION
)
- GO TO NEXT STEP
- IDENTIFICATION OF PROBLEM
- GO TO NEXT STEP
- REPAIR OR REPLACE
- GO TO NEXT STEP
- CONFIRMATION TEST
END