Normal Operation
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
The Parking Aid Module (PAM) supplies a reference voltage and signal return to the parking aid sensors. A fault condition occurs when the PAM detects a short to ground or signal return circuit on the parking aid sensor voltage supply circuit.
- DTC B1B58:11 (Rear Sensor Power Circuit: Circuit Short to Ground) - sets when the sensor voltage supply circuit is shorted to ground or to the signal return circuit.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Parking aid sensor(s)
- Parking aid bumper wiring harness
- PAM