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Home >> Subaru >> 2014 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (1 Of 4) >> DTC P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input; DTC P0108 Manifold Absolute Pressure/Barometric Pressure Circuit High Input >> Description Of Functions >> Test drive
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Test drive

Perform test drive to check if the DTC recurs.

Fig 1: Engine Revolution, Vehicle Speed Versus Time Characteristics Graph
G08553712Courtesy of SUBARU OF AMERICA, INC.
  1. Connect the SSM3 to the DLC3.
  2. Turn the ignition switch to ON.
  3. Turn on the SSM3.
  4. Follow the SSM3 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 SSM3.
  8. Start the engine and let it warm up until the engine coolant temperature stabilizes. (at 75°C {167°F} or more).
  9. Keep the engine speed between 2500 and 3000 rpm for 40 seconds or more. (A)
  10. Drive at 10 km/h {6.25 MPH} or more for 1 minute or more. (B)
    WARNING: When performing this driving test, always observe the applicable traffic laws such as the speed limit.
  11. Stop the vehicle.
  12. Follow the SSM3 on-screen instructions to check the DTC. (Refer to CHECKING/CLEARING DTC )