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Home >> Subaru >> 2021 >> Crosstrek Base, Automatic CVT Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2.0L (Except For HEV)) (Diagnostics) - Introduction >> Inspection Mode >> Procedure >> Inspection Mode F
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Inspection Mode F

DTC Description and trouble part Condition Number of driving cycles on the detecting condition
P0111 INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT RANGE/PERFORMANCE BANK 1
  • 6 hours or more have elapsed since ignition switch is OFF under a completely warmed up condition.
  • For models with block heater, at least 6 hours must have elapsed without operating the block heater.
 2
WARNING: When performing inspection mode F on a public road, pay sufficient attention to the traffic condition and give the highest priority to safe driving.
  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 (DIAG)>CLEAR MEMORY .
  3. With the ignition switch ON (engine stopped), read the values in [Engine Coolant Temperature] and [Intake Air Temp.] using the Subaru Select Monitor. Ref. to COMMON (DIAG)>DATA MONITOR .
  4. If the values from step 3) satisfy the following conditions, idle the engine for two minutes or more.

    Condition: 

    |Engine coolant temperature - Intake air temperature| ≤ 5°C (9°F)

    NOTE:
    • If the conditions are not satisfied, turn the ignition switch to OFF and wait until the parameters are satisfied.
    • For CVT models, hold the select lever to "P" range or "N" range at idling, and for MT models, the gear shift lever in the neutral position at idling.
  5. Drive according to the drive pattern described below.
    G13940905Courtesy of SUBARU OF AMERICA, INC.
    NOTE:
    • In pattern (2), it is acceptable to decelerate to less than 80 km/h (50 MPH) or to stop the vehicle depending on the traffic conditions. Drive the vehicle at 80 km/h (50 MPH) or more until the total driving time reaches or exceeds 15 minutes.
    • There is no given transition time between idling and cruising.
    • Driving at constant speed only on a downhill causes smaller engine load and may result in failure to obtain a right diagnostic result.
    • If the ignition switch is turned to OFF during inspection mode F, perform this driving cycle again after satisfying the conditions listed in the table.
  6. Read the readiness code of [Engine] using Subaru Select Monitor and check that the concerned self-diagnosis is completed. Ref. to ENGINE (DIAGNOSTICS) (H4DO 2.0 (EXCEPT FOR HEV))>ALL READINESS DIAGNOSTIC CODE(S) .
  7. Read the temporary code using the Subaru Select Monitor or general scan tool. Ref. to COMMON (DIAG)>DIAGNOSTIC TROUBLE CODE (DTC) .
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