DTC B1104 Subaru

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: 2020-06-20

Diagnostic Info

  • DTC Code: B1104
  • Brand: Subaru
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