DTC P0A81 Chevrolet

Lost Communication With TCM

Lost Communication With TCM

Description

Malfunction detected with the CAN communication line, between ECM and TCM. EnableConditions: Engine Run Time ≥ 2sec. Ignition Voltage ≥ 11V Threshold value: CAN communicatin error with TCM Diagnosis Time: Continuous

Cause and Solution

Poor Connections CAN communication line between ECM and TCM ECM faulty TCM faulty

Video Guide

Duration: PT4M9S | Uploaded: 2020-07-20

Diagnostic Info

  • DTC Code: P0A81
  • Brand: Chevrolet
Back to Blog