DTC P0021 Chevrolet

Lost Communication with Main Body ECU

Lost Communication with Main Body ECU

Description

Lost communication with main body ECU (multiplex network body ECU)

Cause and Solution

CAN communication system

Video Guide

Duration: PT3M49S | Uploaded: 2020-07-13

Diagnostic Info

  • DTC Code: P0021
  • Brand: Chevrolet
Back to Blog