DTC P0B73 Cadillac
Lost Communication With Hybrid EV Powertrain Control Module
Lost Communication With Hybrid EV Powertrain Control Module
Description
The PCM continuously monitors the controller area network (CAN) for messages from thetransmission control module (TCM). This DTC sets when the PCM does not receive the TCMmessage within the defined amount of time.
Cause and Solution
Communication error
Diagnosis:
Check for other PCM DTCs or PCM related symptoms. Diagnose all other PCM DTCs or PCM related symptoms first.
Video Guide
Diagnostic Info
- DTC Code: P0B73
- Brand: Cadillac