How To Proceed With Troubleshooting
- VEHICLE BROUGHT TO WORK SHOP
- (SEE CUSTOMER PROBLEM ANALYSIS CHECK )
- CHECK AND CLEAR DTC (SEE PRE-CHECK
)
DTC DOES NOT OUTPUT (PROCEED TO " MULTIPLEX COMMUNICATION SYSTEM ")
DTC OUTPUTS (GO TO STEP 4)
- PROBLEM SYMPTOM CONFIRMATION
SYMPTOM DOES NOT OCCUR (GO TO STEP 5)
SYMPTOM OCCURS (GO TO STEP 6 )
- SYMPTOM SIMULATION (SEE HOW TO PROCEED WITH TROUBLESHOOTING )
- BASIC INSPECTION
- Check the battery voltage.
Standard: 11 to 14 V
- DTC CHECK (SEE PRE-CHECK
)
- Check for cruise control system DTC output.
TROUBLE CODE (GO TO STEP 8)
NORMAL CODE (GO TO STEP 9 )
- (SEE DIAGNOSTIC TROUBLE CODE CHART )
- (SEE PROBLEM SYMPTOMS TABLE )
- (SEE CIRCUIT DESCRIPTION to CIRCUIT DESCRIPTION )
- IDENTIFICATION OF PROBLEM
- TERMINALS OF ECM
- REPAIR OR REPLACE
- CONFIRMATION TEST
- END
HINT:
The hand-held tester can be used at the following diagnostic steps: 3, 7, 10 and 14.