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Home >> Subaru >> 2004 >> Baja Base, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0865: TCM Communication Circuit Low >> Diagnostic Method

Diagnostic Method

Judge NG when the malfunction criteria below are completed. Judge OK and clear the NG when the signal is turned over.

Judgment Value 

Fig 1: Threshold Value Table
G00899796Courtesy of SUBARU OF AMERICA, INC.
  1. Time Needed for Diagnosis: 

    3 seconds

  2. Malfunction Indicator Light Illumination: 

    Illuminates when malfunction occurs in 2 continuous driving cycles.