DTC C12CF GMC

Communication Error from HV ECU

Communication Error from HV ECU

Description

With the G2 terminal voltage at 9.5 V or more for 2 seconds or more, communication with the HV control ECU that occurs once or more within 5 seconds changes from being valid communication to being invalid communication 10 times or more within 1 minute.

Video Guide

Duration: PT4M4S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: C12CF
  • Brand: GMC
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