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Pinpoint Test BB : U0401:82: Notes

Normal Operation and Fault Conditions 

IPC DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U0401:82 Invalid Data Received from ECM/PCM A: Alive/Sequence Counter Incorrect/Not Updated Sets in continuous memory in the IPC if PCM data messages received from the BCM over the are missing for 5 seconds or longer.

Possible Sources