Symptom Chart: DRL
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to SERVICE INFORMATION , Diagnostic Methods for information regarding Ford-specific diagnostic practices.
Symptom Chart: DRL
| Condition | Possible Sources | Actions |
| A module does not respond to the scan tool | Fuse Wiring, terminals or connectors Module |
REFER to COMMUNICATIONS NETWORK , Symptom Chart: Communication Network. |
| The DRL are inoperative | Exterior lighting system input/output Transmission gear input BCM |
GO to Pinpoint Test H . |