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Home >> Chevrolet >> 2018 >> Equinox L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Controls And Fuel - 2.0L (LTG) - Diagnostic Information And Procedures (P0010 - P0333)) >> Diagnostic Information And Procedures >> DTC P0097, P0098 Or P0099: Intake Air Temperature (IAT) Sensor 2 Circuit >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition On.
  2. Verify that DTC P0641, P0651, P0685, P0686, P0687, P1682, P0690, P0697, P06A3, P16A7, P06D2 or P16BC is not set.
    • Go to next step: 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 30°C (54°F) of each other.
    • Start-Up IAT Sensor 1
    • Start-Up IAT Sensor 2
    • Start-Up IAT Sensor 3
    • If not within 30°C (54°F) 

      Refer to Circuit/System Testing below.

    • Go to next step: If within 30°C (54°F) 
  4. Engine running.
  5. Verify the following scan tool parameters are between -38 and +149°C (-36 and +300°F).
    • IAT Sensor 1
    • IAT Sensor 2
    • IAT Sensor 3
    • If not between: -38 and +149°C (-36 and +300°F) 

      Refer to Circuit System Testing below.

    • Go to next step: If between: -38 and +149°C (-36 and +300°F) 
  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 below.

    • Go to next step: If the DTC does not set 
  8. All OK
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