DTC P1278 GMC

Implausible Ignition Switch Status Message Received - Signal Stuck Low

Implausible Ignition Switch Status Message Received - Signal Stuck Low

Description

The Body Control Module (BCM) monitors the hardwired ignition switch input circuit from the Radio Frequency (RF) Hub module and compares it to the ignition switch status message received over the Controller Area Network (CAN) bus.

Video Guide

Duration: PT4M14S | Uploaded: 2020-06-23

Diagnostic Info

  • DTC Code: P1278
  • Brand: GMC
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