Possible Causes
| Possible Causes |
|---|
| BATTERY WAS DISCONNECTED |
| SCAN TOOL BATTERY DISCONNECT PERFORMED |
| PCM WAS REPLACED OR DISCONNECTED |
| QUICK LEARN WAS PERFORMED |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See 45RFE/545RFE PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .