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Home >> Subaru >> 2015 >> Outback 2.5i Limited >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4DO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC U0077 Lin Communication Bus "ECM/Pcm" Off >> Diagnostic Method
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Diagnostic Method

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Data sent/received with control modules connected to LIN Does not change
  or
  Checksum error

Time Needed for Diagnosis:  1280 ms

Malfunction Indicator Light Illumination:  Illuminates as soon as a malfunction occurs.