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

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

Normal Operation
The instrument cluster 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 sets DTC U0100, multiple gauges or indicators are likely to be inoperative in the cluster. Other modules that require data from the instrument cluster all set communication DTCs and may also exhibit system function concerns.

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

AD1-AD3:

AD4-AD5: