DTC Troubleshooting
DIAGNOSTIC PROCEDURES CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "Engine and Emission Control System Check" performed? | Go to Step 2. | Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK . |
| 2 | Does starting motor operate? | Go to Step 3. | Check starting motor and its circuit. Starting motor: STARTING MOTOR INSPECTION Starting motor circuit: CRANKING SYSTEM SYMPTOM DIAGNOSIS |
| 3 | Engine start signal check
Is it in good condition? |
Replace ECM and recheck DTC, see ECM REMOVAL AND INSTALLATION . | Repair or replace defective parts or wire harness. |