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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 353 (Engine Controls And Fuel - 2.5L (LCV) - DTC P0010 To DTC P0366) >> Diagnostic Information and Procedures >> DTC P0117, P0118, or P0119: Engine Coolant Temperature (ECT) Sensor >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify the scan tool ECT Sensor parameter is warmer than -40° C (-40° F) and colder than 150° C (302° F) and changes with engine run time.
    • If colder than -39° C (-38° F) or warmer than 149° C (300° F) or does not change 

      Refer to Circuit/System Testing.

    • If warmer than -40° C (-40°F) and colder than 150° C (302° F) and changes 
  3. 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.
  4. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

    • If the DTC does not set 
  5. All OK.
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