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
- CUSTOMER PROBLEM ANALYSIS (SEE CUSTOMER PROBLEM ANALYSIS CHECK )
- CHECK AND CLEAR DTC (SEE PRE-CHECK )
- PROBLEM SYMPTOM CONFIRMATION
SYMPTOM OCCUR (GO TO STEP 6 )
SYMPTOM DOES NOT OCCUR (GO TO STEP 5)
- SYMPTOM SIMULATION (SEE HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS )
- DTC CHECK (SEE PRE-CHECK
)
MALFUNCTION CODE (GO TO STEP 7)
NORMAL CODE (GO TO STEP 8
- DTC CHART (SEE DIAGNOSTIC TROUBLE CODE CHART
)
GO TO STEP 10
- PROBLEM SYMPTOMS TABLE (SEE PROBLEM SYMPTOMS TABLE )
- ACTUATOR CHECK (SEE HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS )
- CIRCUIT INSPECTION (SEE CIRCUIT DESCRIPTION - CIRCUIT DESCRIPTION )
- IDENTIFICATION OF PROBLEM
- PARTS INSPECTION
- REPAIR
- CONFIRMATION TEST
- END