B166B

B166B-LEFT TRAILER TOW LAMP CONTROL CIRCUIT LOW





For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
- With the Trailer Tow Lamps activated.
- Set Condition:
- When the FCM detects a LOW condition.





Diagnostic Test

1. INTEGRATED POWER MODULE
Turn the ignition off.
Replace the Trailer Tow Left Turn relay with and known good relay.
With the Scan Tool, clear all IPM DTC's.
Activate the Left Turn Signal.
With the Scan Tool, read the Wiper DTC's.
Does the Scan Tool read: B166B-LEFT TRAILER TOW LAMP CONTROL CIRCUIT LOW?

Yes

- Replace the Integrated Power Module.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Test complete.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test