DTC P1AC9 GMC

F-CAN Malfunction (BUS-OFF)

F-CAN Malfunction (BUS-OFF)

Description

The PCM does not receive any signals via the F-CAN lines for at least 1 second.

Cause and Solution

PCM may need to be updated with the latest software Faulty PCM

Video Guide

Duration: PT3M53S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: P1AC9
  • Brand: GMC
Back to Blog