DTC C12DF GMC

Lost Communication with TCM

Lost Communication with TCM

Description

Monitor runs whenever following DTCs are not present: None Battery Voltage: 10.5 V or more (More than 0.5 second) Engine switch: On (IG) Starter: OFF

Cause and Solution

ECM

Video Guide

Duration: PT3M54S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: C12DF
  • Brand: GMC
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