Diagnostic Test
WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
- 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: B166C-LEFT TRAILER TOW LAMP CONTROL CIRCUIT HIGH?
Yes
- Replace the Integrated Power Module in accordance with the service information.
- Perform BODY VERIFICATION TEST - VER 1 .
No
- Test complete.
- Perform BODY VERIFICATION TEST - VER 1 .