Normal Operation
WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. 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. Each of the parking aid sensors has an individual input signal to the PAM . When an object is present behind the vehicle, the PAM receives an input signal from the sensors and determines the distance of the object to the vehicle. A fault condition occurs when the PAM detects a short to voltage on the parking aid sensor signal circuit.
- DTC C1699 (Left Rear Sensor Circuit Short to Vbat) - a continuous and on-demand DTC that sets when the left rear parking aid sensor signal line is shorted to voltage.
- DTC C1702 (Right Rear Sensor Circuit Short to Vbat) - a continuous and on-demand DTC that sets when the right rear parking aid sensor signal line is shorted to voltage.
- DTC C1705 (Rear Center Sensor Circuit Short to Vbat) - a continuous and on-demand DTC that sets when the left rear center parking aid sensor signal line is shorted to voltage.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Parking aid sensor(s)
- Parking aid bumper harness
- PAM