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 an open in the parking aid sensor circuits or the parking aid sensor input signal is shorted to ground.
- DTC C1700 (Left Rear Sensor Circuit Failure or Blockage) - a continuous and on-demand DTC that sets when any of the left rear parking aid sensor circuits are open or the sensor signal line is shorted to ground.
- DTC C1703 (Right Rear Sensor Circuit Failure or Blockage) - a continuous and on-demand DTC that sets when any of the right rear parking aid sensor circuits are open or the sensor signal line is shorted to ground.
- DTC C1706 (Rear Center Sensor Circuit Failure) - a continuous and on-demand DTC that sets when any of the rear center parking aid sensor circuits are open or the sensor signal line is shorted to ground.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Parking aid sensor(s)
- Parking aid bumper harness
- PAM