Pinpoint Tests AP: DTC U0100
Instrumentation, Message Center and Warning Chimes
Pinpoint Test AP: DTC U0100
Normal Operation
- DTC U0100 (Lost Communication With ECM/PCM) - sets in continuous memory if data messages received from the PCM over the High Speed Controller Area Network (HS-CAN) are missing for greater than 5 seconds.
NOTE: Once the Instrument Cluster (IC) sets DTC U0100, multiple gauges or indicators are likely to be inoperative in the IC. Other modules that require data from the IC all set communication DTCs and may also exhibit system function concerns.
This pinpoint test is intended to diagnose the following:
- PCM
- IC
PINPOINT TEST AP: DTC U0100
