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Home >> Chevrolet >> 2018 >> Impala Premier, Gas >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Controls And Fuel - 2.5L (LCV) - Diagnostic Information And Procedures (P0010-P0336)) >> Diagnostic Information and Procedures >> DTC P0097, P0098, or P0099 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
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.

  1. Engine idling, verify the following scan tool parameters are between: between -38 and +149°C (-36 and +300°F).
    • IAT Sensor 1
    • IAT Sensor 2
    • If not between: -38 and +149°C (-36 and +300°F) 

      Refer to Circuit System Testing.

    • Go to next step: If between: -38 and +149°C (-36 and +300°F) 
  2. 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.
  3. Verify the DTCs do not set.
    • If any of the DTCs set 

      Refer to Circuit/System Testing.

    • Go to next step: If none of the DTCs set 
  4. All OK
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