Normal Operation

The Parking Aid Module (PAM) sends and receives network messages over the High Speed Controller Area Network (HS-CAN) from the Power Steering Control Module (PSCM) (part of the steering column). A fault condition occurs when the PSCM  does not send an acknowledge exit message to the PAM  indicating the EPAS  system has exited the active park assist maneuvers.

This fault occurs while the operator is using the active park assist system and the system has control of the steering. During the failure, the operator should see the Instrument Cluster (IC) message center message "ACTIVE PARK FAULT" followed by an audible chime.

• DTC B1304:68 (Electronic Power Assisted Steering System: Event Information) - sets when the PAM  does not receive an acknowledge exit message from the PSCM  .

This pinpoint test is intended to diagnose the following: 

• PSCM 
• PAM