Normal Operation

• DTC U0102:00 (Lost Communication With Transfer Case Control Module: No Sub-Type Information) - sets in the Instrument Panel Cluster (IPC) if data messages received from the 4X4 control module over the High Speed Controller Area Network (HS-CAN) are missing for greater than 5 seconds. For a complete list of all network messages, refer to MODULE COMMUNICATIONS NETWORK article.

This pinpoint test is intended to diagnose the following: 

• 4X4 control module
• IPC