Trailer Lamps
Description and Operation
Testing and Inspection- Initial Inspection and Diagnostic Overview
- Symptom Related Diagnostic Procedures
- Pinpoint Tests
- Connector Circuit Reference
- Central Junction Box (CJB) C270e
- Central Junction Box (CJB) C270j
- Central Junction Box (CJB) C270k
- Central Junction Box (CJB) C270n
- Trailer Tow Battery Charge Relay C2110
- Trailer Tow C439a (7-Pin Connector)
- Trailer Tow C439b (4-Pin Connector)
- Trailer Tow Electronic Brake Control Module C2026
- Trailer Tow Parking Lamp Relay C2240
- Test V: The Trailer Lamps Are Inoperative
- Test W: The Trailer Lamps Are On Continuously
- Test X: The Trailer Battery Charging Is Inoperative
- Test Y: The Trailer Electric Brakes Are Inoperative/Do Not Operate Correctly
- Connector Circuit Reference
Diagrams
Tools and Equipment