B166C

B166C-LEFT TRAILER TOW LAMP CONTROL CIRCUIT HIGH





For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
With the Trailer Tow Lamps activated.

- Set Condition:
When the Front Control Module (FCM) detects a HIGH condition.





INTEGRATED POWER MODULE
1. Turn the ignition off.
2. Replace the Trailer Tow Left Turn relay with and known good relay.
3. Using the scan tool, clear all FCM DTCs.
4. Activate the Left Turn Signal.
5. Using the scan tool, read the Wiper DTCs.

Does the scan tool read: B166C-LEFT TRAILER TOW LAMP CONTROL CIRCUIT HIGH?

Yes

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

No

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