Possible Causes
WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.
- sensor alignment
- parking aid module
- circuit 1367 (WH/YE) open or short to ground
- circuit 239 (WH/OG) open, short to ground, or short to power