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Home >> Subaru >> 2019 >> BRZ Series.Gray >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (1 Of 3) >> EFI System (FA20) >> DTC P0111: Intake Temperature Sensor Characteristic >> Description of functions >> Test drive
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Test drive

Perform test drive to check if the DTC recurs.

NOTE:
  • Make sure 6 hours or more pass after you turn the ignition switch to OFF when the vehicle is fully warmed up.
  • If the vehicle is equipped with a block heater, make sure 6 hours or more pass without the block heater being activated.
G12586164Courtesy of SUBARU OF AMERICA, INC.
  1. Connect the SSM4 to the DLC3.
  2. Turn the ignition switch to ON.
  3. Turn on the SSM4.
  4. Follow the SSM4 on-screen instructions to clear the DTCs. (Refer to CHECKING/CLEARING DTC )
  5. Turn the ignition switch to OFF, and wait for 30 seconds.
  6. Turn the ignition switch to ON.
  7. Turn on the SSM4.
  8. Select the following menu items using the SSM4.: [Each System] / [Engine Control System] / [Data monitor] / [Coolant Temp./ Intake Air Temp.]
  9. Confirm that the engine coolant temperature and intake air temperature meet the condition described below.

    Condition: Engine coolant temperature - intake air temperature is 5°C {9°F} or less

    NOTE: If the condition is not met, turn the ignition switch to OFF, and wait until the condition is met.
  10. If the condition is met, perform a driving test as follows.
    WARNING: When performing this driving test, always observe the applicable traffic laws such as the speed limit.
    NOTE:
    • In section B, you can decelerate to less than 80 km/h {49.7 MPH} or stop the vehicle according to the traffic conditions.

      Continue driving for a total of 15 minutes or more at 80 km/h {49.7 MPH} or more.

    • There is no time limit for the transition from idling to constant speed driving or from constant speed driving to idling.
    • If you maintain constant speed only when driving downhill, the engine load decreases, and you may not be able to obtain correct diagnostic results.
    • If you stop the engine during the driving test, restart the procedure from step 8.
      1. Idle the engine for 2 minutes or more. (A)
      2. Drive at 80 km/h {49.7 MPH} or more for a total of 15 minutes or more. (B)
      3. Stop the vehicle and run the engine on idling for 30 seconds or more. (C)
      4. Drive at a constant speed of 80 km/h {49.7 MPH} or more for 30 seconds or more. (D)
      5. Stop the vehicle and run the engine on idling for 30 seconds or more. (E)
      6. Drive at a constant speed of 80 km/h {49.7 MPH} or more for 30 seconds or more. (F)
      7. Stop the vehicle and run the engine on idling for 30 seconds or more. (G)
  11. Follow the SSM4 on-screen instructions to check the DTC. (Refer to CHECKING/CLEARING DTC )
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