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Home >> GMC >> 2018 >> Terrain Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Engine Controls And Fuel - 1.6L (LH7) Diesel - Diagnostic Information And Procedures (P040B - P204D)) >> Diagnostic Information And Procedures >> DTC P040B, P040C, P040D, P040E, P041B, P041C, P041D, Or P041E: Exhaust Gas Recirculation (EGR) Temperature Sensor 1-2 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Engine running.
  2. Verify the scan tool the appropriate EGR Temperature Sensor parameter is between -39° to +999°C (-38° to +1, 830°F) and changes with engine run time.
    • If not between -39° to +999°C (-38° to +1, 830°F) or does not change 

      Refer to Circuit/System Testing.

    • Go to next step: If between -39° to +999°C (-38° to +1, 830°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 that DTC does not set.
    • If DTC sets 

      Refer to Circuit/System Testing.

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