Tests AH: DTC U0100 - Lost Communication With ECM/PCM

PINPOINT TEST AH: DTC U0100 - LOST COMMUNICATION WITH ECM/PCM

Normal Operation
The instrument cluster (IC) sets DTC U0100 if data messages received from the PCM 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 Information Bus (Module Communications Network).

NOTE: Once the instrument cluster (IC) sets DTC U0100, multiple gauges or indicators are likely to be inoperative in the cluster.

This pinpoint test is intended to diagnose the following:
- PCM
- Instrument cluster (IC)

AH1-AH2:

AH3-AH5: