Normal Operation
WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.
The parking aid module communicates to the diagnostic tool through circuit 4-GN10 (GY). Voltage is supplied to the parking aid module on circuit 20-GN10 (PK/YE). The parking aid module is grounded through circuit 91-GN10 (BN).