DTC P0020 Buick

Gauge Control Module Lost Communication With ECM PCM

Gauge Control Module Lost Communication With ECM PCM

Description

Faulty battery or charging systemPerform the gauge control module input testLoose or poor connections at the gauge control module and the ECM PCMCheck for faulty inputsGauge control module is faultyFaulty ECM PCM

Video Guide

Duration: PT3M52S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: P0020
  • Brand: Buick
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