DTC P0650: Malfunction Indicator Lamp (MIL) Control Circuit: Troubleshooting
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 |
Is the MIL illuminated? |
0 Ω | Go to Step 3 | Go to Step 5 |
| 3 | Command the MIL OFF with a scan tool. Is the MIL illuminated? |
- | Go to Step 4 | Go to Diagnostic Aids |
| 4 |
Did you find and correct the condition? |
- | Go to Step 16 | Go to Step 13 |
| 5 |
Is the MIL illuminated? |
- | Go to Step 7 | Go to Step 6 |
| 6 | Does the fuse in the jumper wire open? | - | Go to Step 7 | Go to Step 8 |
| 7 |
Are any DTCs displayed that have not been diagnosed? |
- | Go to Step 16 | Go to Step 13 |
| 8 |
Does the test lamp illuminate? |
- | Go to Step 10 | Go to Step 9 |
| 9 | Repair the open in the IPC ignition 1 voltage circuit. Did you complete the repair? |
- | Go to Step 16 | - |
| 10 |
Does the test lamp turn ON and OFF? |
- | Go to Step 11 | Go to Step 12 |
| 11 | Test for an intermittent and for a poor connection at the IPC harness connector. Did you find and correct the condition? |
- | Go to Step 16 | Go to Step 15 |
| 12 |
Did you find and correct the condition? |
- | Go to Step 16 | Go to Step 13 |
| 13 | Test for an intermittent and for a poor connection at the ECM. Did you find and correct the condition? |
- | Go to Step 16 | Go to Step 14 |
| 14 | Replace the ECM. Did you complete the replacement? |
- | Go to Step 16 | - |
| 15 | Replace the IPC. Did you complete the replacement? |
- | Go to Step 16 | - |
| 16 |
Did the DTC fail this ignition? |
- | Go to Step 2 | Go to Step 17 |
| 17 | Check if any additional DTCs are set. Are any DTCs displayed that have not been diagnosed? |
- | Go to applicable DTC table | System OK |