DTC P0689 GMC

Lost Communication With Alternator Control Module

Lost Communication With Alternator Control Module

Description

The Powertrain Control Module (PCM) has lost communication with the Smart Alternator over the LIN BUS. Two trip fault.

Cause and Solution

LIN BUS CIRCUIT OPEN OR SHORTEDALTERNATORPOWERTRAIN CONTROL MODULE (PCM)

Video Guide

Duration: PT4M1S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: P0689
  • Brand: GMC
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