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Home >> Subaru >> 2012 >> Forester X, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4DO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0851 Park/Neutral Switch Input Circuit Low (At Model) >> Diagnostic Method
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Diagnostic Method

JUDGMENT VALUE REFERENCE CHART

Malfunction Criteria Threshold Value
Neutral switch signal in ECM when "P"/"N" range in TCM are "OFF" and when the other switches are "ON" LOW (ON)

Time Needed for Diagnosis:  100 time(s)

Malfunction Indicator Light Illumination:  Illuminates when malfunction occurs in 2 continuous driving cycles.

JUDGMENT VALUE REFERENCE CHART

Malfunction Criteria Threshold Value
Neutral switch signal in ECM when "P"/"N" range in TCM are "OFF" and when the other switches are "ON" HIGH (OFF)

Time Needed for Diagnosis:  Less than 1 second