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Home >> Subaru >> 2012 >> Outback Base, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0851 Neutral Switch Input Circuit Low (Mt Model) >> Diagnostic Method
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Diagnostic Method

Judge NG when the malfunction criteria below are completed determined times or more after the neutral SW change.

JUDGMENT VALUE CHART

Malfunction Criteria Threshold Value
Neutral switch signal (while changing from a to b below) LOW (ON) continues.
Driving condition change
  1. Engine speed 600 RPM - 900 RPM & Vehicle speed = 0 km/h (0 MPH)
  2. Engine speed 1600 RPM - 2550 RPM & Vehicle speed ≥ 64 km/h (39.8 MPH)
From a) to b)

Time Needed for Diagnosis:  3 time(s)

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

Judge as OK and clear NG when there is change in the neutral SW.

JUDGMENT VALUE CHART

Malfunction Criteria Threshold Value
Neutral switch signal (while changing from a to b below) Changes to HIGH (OFF).
Driving condition change
  1. Engine speed 600 RPM - 900 RPM & Vehicle speed = 0 km/h (0 MPH)
  2. Engine speed 1600 RPM - 2550 RPM & Vehicle speed ≥ 64 km/h (39.8 MPH)
From a) to b)

Time Needed for Diagnosis:  Less than 1 second