DTC B1A08 Mitshubishi

PCM TCM Serial Communication Circuit Malfunction

PCM TCM Serial Communication Circuit Malfunction

Description

Engine started, and the PCM detected an irregular voltage condition on the PCM to TCM serial data circuit, or it detected a Check Sum Error occurred during the test.

Cause and Solution

TCM to PCM serial data circuit is openTCM to PCM serial data circuit is shorted to groundTCM or PCM has failed

Video Guide

Duration: PT4M7S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: B1A08
  • Brand: Mitshubishi
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