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Home >> Subaru >> 2018 >> Forester 2.5i Premium, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics - Introduction) (H4DO) >> Drive Cycle >> Procedure >> Drive Cycle S

Drive Cycle S

DTC Item Condition Number of driving cycles on the detecting condition
P0851 PARK/NEUTRAL SWITCH INPUT CIRCUIT LOW MT model 2
P0852 PARK/NEUTRAL SWITCH INPUT CIRCUIT HIGH MT model 2
WARNING: When performing the drive cycle S on the public road, be very careful of the traffic condition and the safe driving must be the high priority.

Diagnostic procedure: 

  1. Drive 3 times according to the drive pattern described below.
    G12519051Courtesy of SUBARU OF AMERICA, INC.
  2. Read the temporary code using the Subaru Select Monitor or general scan tool. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Read Diagnostic Trouble Code (DTC)>OPERATION .