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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls And Fuel - 1.8L (LUW, LWE) - DTC P0010 To DTC P0442) >> Diagnostic Information and Procedures >> DTC P00F4-P00F6: Intake Air Humidity Sensor Circuit >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition ON, verify that DTC P0641, P0651, P0697 or P06A3 is not set.
    • If none of the DTCs are set 
  2. Ignition ON.
    NOTE: To minimize the effects of residual engine heat and sensor internal heating elements, perform Steps  1 and  2 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 55°C (99°F) of each other.
    • Start-Up IAT Sensor 1
    • IAT Sensor 2
    • Start-Up ECT
    • If within 55°C (99°F) 
  4. Engine idling, verify the scan tool Intake Air Humidity parameter is between 5 and 90%.
    • If between 5 and 90% 
  5. 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.
  6. Verify the DTCs do not set.
    • If none of the DTCs set 
  7. All OK