Normal Operation

The Parking Aid Module (PAM) supplies a reference voltage and signal return to the active park assist sensors. A fault condition occurs when the PAM detects that the active park assist sensor circuits or input signal is open or shorted to ground.

• DTC B129C:14 (Left Front Side Sensor: Circuit Short To Ground Or Open) - a continuous and on-demand DTC that sets when any of the left front active park assist sensor circuits are open or the sensor signal line is shorted to ground.
• DTC B129D:14 (Right Front Side Sensor: Circuit Short To Ground Or Open) - a continuous and on-demand DTC that sets when any of the right front active park assist 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
• Active park assist sensor(s)
• PAM