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Home >> Subaru >> 2023 >> Crosstrek Hybrid >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (HEV) (Diagnostics - Introduction) >> Inspection Mode >> Procedure >> Inspection Mode An

Inspection Mode An

DTC Description & trouble part Condition Number of driving cycles on the detecting condition
P0068 MAP/MAF - THROTTLE POSITION CORRELATION - 2
P0101 MASS OR VOLUME AIR FLOW SENSOR "A" CIRCUIT RANGE/PERFORMANCE - 2
P219C CYLINDER 1 AIR-FUEL RATIO IMBALANCE - 2
P219D CYLINDER 2 AIR-FUEL RATIO IMBALANCE - 2
P219E CYLINDER 3 AIR-FUEL RATIO IMBALANCE - 2
P219F CYLINDER 4 AIR-FUEL RATIO IMBALANCE - 2
WARNING: When performing inspection mode AN 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.
  • Even if switched to the hybrid battery save mode under the following conditions, the engine may not start.
  • Power from HV battery is low and reduction in SOC is slight.
  • SOC is recovering due to regeneration, etc.
  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.
    G16350815Courtesy of SUBARU OF AMERICA, INC.
    (1) 0 km/h (0 MPH)
    (2) 60 km/h (37 MPH)
    (3) 88 km/h (55 MPH)
    (4) Vehicle speed km/h (MPH)
    (5) Sec.
    (A) Press the hybrid mode switch to switch to the hybrid battery save mode.
    (B) Wait until the engine stalls during idling. (Engine coolant temperature is 80°C (176°F) or more)
    (C) Accelerate with the throttle half-open to 88 km/h (55 MPH) or more.
    (D) Drive for 20 seconds or more at 88 km/h (55 MPH) or more.
    (E) Decelerate with fully closed throttle to 60 km/h (40 MPH).
    (F) Drive for 20 seconds or more at 60 km/h (40 MPH) or less.
    (G) Accelerate with the throttle half-open to 88 km/h (55 MPH) or more.
    (H) Stop vehicle with the throttle fully closed.
  4. Read the pending code using the Subaru Select Monitor or general scan tool. Ref. to COMMON (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .