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Home >> Chevrolet >> 2016 >> Spark LS, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 1.4L (LV7) - DTC P0010 To DTC P0366 >> Diagnostic Information and Procedures >> DTC P00F4-P00F6: Intake Air Humidity Sensor >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify that DTC P0641, P0651, P0697, P06A3, or P06D2 is not set.
    • If none of the DTCs are set 
    3. NOTE:

    To minimize the effects of residual engine heat and sensor internal heating elements, perform Steps 3 and 4 of this verification procedure only if the ignition has been OFF for 8 hours or more.

  3. Verify the following scan tool parameters are within 25°C (45°F) of each other.
    • Start-Up IAT Sensor 1
    • IAT Sensor 2
    • If not within 25°C (45°F) 

      Refer to Circuit/System Testing.

    • If within 25°C (45°F) 
  4. Engine idling, verify the scan tool Intake Air Humidity parameter is between 5 and 90 %.
    5. NOTE:

    On vehicles equipped with Auto Start/Stop, it may be necessary to OPEN the hood to enable the engine to idle.

    • If not between 5 and 90 % 

      Refer to Circuit/System Testing.

    • If between 5 and 90 % 
  6. Operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that you observed from the freeze frame/failure records data.
  7. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

    • If the DTC does not set 
  8. All OK
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