B166D-LEFT TRAILER TOW LAMP CONTROL CIRCUIT OPEN
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
- With the Trailer Tow Lamps activated.
- Set Condition:
- When the FCM detects a OPEN condition.
| Possible Causes |
| INTEGRATED POWER MODULE |
Diagnostic Test
1. INTEGRATED POWER MODULETurn 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: B166D-LEFT TRAILER TOW LAMP CONTROL CIRCUIT OPEN?
Yes
- Replace the Integrated Power Module in accordance with the service information.
- Perform the BODY VERIFICATION TEST — VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Test complete.
- Perform the BODY VERIFICATION TEST — VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)