DTC U0074-00: Can System Communication Error: Notes

DTC U0074:00	CAN system communication error (local CAN between PCM and TCM)
Detection Condition	Malfunction in CAN bus communication line. Diagnostic Support Note This is a continuous monitor (other). The check engine light does not illuminate. FREEZE FRAME DATA is not available. Snapshot data is available. DTC is stored in the PCM memory.
Fail-Safe Function	Not applicable
Possible Cause	CAN communication line malfunction between PCM and TCM (local CAN between PCM and TCM) TCM terminal G-PCM terminal 1A TCM terminal H-PCM terminal 1B TCM DTC is stored. PCM malfunction TCM malfunction