DTC Troubleshooting
DTC TROUBLESHOOTING CHART
| Step | Action | Value (s) | Yes | No |
|---|---|---|---|---|
| 1 | Did you perform the DIAGNOSTIC SYSTEM CHECK ? | - | Go to Step 2. | Go to ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK . |
| 2 | Do the stop lamps operate properly? | - | Go to Step 3. | Go to TAIL / STOP / TURN / BACKUP LAMPS DIAGNOSIS . |
| 3 | Test the stop lamp switch signal circuit for an open or for a high resistance between the brake switch and the Engine Control Module (ECM). Did you find and correct the condition? |
- | Go to Step 6. | Go to Step 4. |
| 4 | Inspect for poor connections at the harness connector of the ECM. Did you find and correct the condition? |
- | Go to Step 6. | Go to Step 5. |
| 5 | Replace the ECM. Did you complete the replacement? |
- | Go to Step 6. | - |
| 6 |
Does the DTC reset? |
- | Go to Step 2. | System OK |