Normal Operation

When the transmission selector is in REVERSE (R) and an object is detected in the path of the parking aid sensor, a network message of the distance from the parking aid sensor to the object is sent from the Parking Aid Module (PAM) to the Body Control Module (BCM) over the High Speed Controller Area Network (HS-CAN). The BCM networks the parking aid sensor message to the rear video camera over the Local Interconnect Network (LIN). The visual alerts are red, yellow or green and appear as highlights on top of the displayed image to indicate in which zone the object is detected. The visual park aid feature can be enabled and disabled within the Front Display Interface Module (FDIM).

This pinpoint test is intended to diagnose the following: 

• Wiring, terminals or connectors
• Rear video camera
• PAM
• BCM