Normal Operation

• DTC U0121:00 (Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub-Type Information) - sets in the Parking Aid Module (PAM) if data messages received from the ABS module over the High Speed Controller Area Network (HS-CAN) are missing after the active park assist system is activated. For a complete list of all network messages, refer to MODULE COMMUNICATIONS NETWORK article.

This pinpoint test is intended to diagnose the following: 

• ABS module
• PAM