DTC P050B: Cold Start Ignition Timing Performance: Troubleshooting
TROUBLESHOOTING CHART
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 | Perform an On-Board Diagnostic (OBDII) System Check. Was the check performed? | - | Go to Step 2 | Go to On-Board Diagnostic (OBD II) System Check |
| 2 | Observe the scan tool DTC information. Are any of the DTCs other than P050B set? | - | Go to applicable DTC table | Go to Step 3 |
| 3 | Perform the Ignition System Check in the System Diagnosis. Did you find and correct the condition? | - | Go to Step 5 | Go to Step 4 |
| 4 | Replace the ECM. Is the replace complete? | - | Go to Step 5 | - |
| 5 | 1. Clear the DTCs with a scan tool. 2. Turn the ignition OFF for 30 seconds. 3. Operate the vehicle within the Conditions for Setting the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/ Failure Records. Did the DTC fail this ignition? | - | Go to applicable DTC table | Go to Step 6 |
| 6 | Check if any additional DTCs are set. Are any DTCs displayed that have not been diagnosed? | - | Go to applicable DTC table | DTC table System OK |