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Home >> Subaru >> 2022 >> WRX Base, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) - Introduction >> Inspection Mode >> Procedure >> Inspection Mode Ax
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Inspection Mode Ax

DTC Description & trouble part 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 inspection mode AX on a public road, pay sufficient attention to the traffic condition and give the highest priority to safe driving. 

NOTE:

Perform the inspection mode after warming up the engine except that the engine coolant temperature at engine start is specified. 

  1. Check that the battery voltage is 12 V or more and fuel remains approx. half [20 - 40 L (5.3 - 10.6 US gal, 4.4 - 8.8 Imp gal)].
  2. Using the Subaru Select Monitor, perform the clear memory of [Engine]. Ref. to COMMON (DIAGNOSTICS)>CLEAR MEMORY
  3. Drive according to the drive pattern described below.
    G14614386Courtesy of SUBARU OF AMERICA, INC.
  4. Read the pending code using the Subaru Select Monitor or general scan tool. Ref. to COMMON (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)