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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Diagnostic Information And Procedures (3 Of 5)) >> Diagnostic Information and Procedures >> DTC P0545, P0546, P113B, P2080, or P2081 >> Circuit/System Verification

Circuit/System Verification

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  1. Verify the scan tool parameter: Exhaust Gas Temperature Sensor = -39 to 899°C (-38 to 1, 650°F)
    • If not between -39 and 899°C (-38 and 1, 650°F) 

      Refer to: Circuit/System Testing

    • Go to next step: If between -39 and 899°C (-38 and 1, 650°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.

    Verify the DTC does not set.

    • If the DTC sets 

      Refer to: Circuit/System Testing

    • Go to next step: If the DTC is not set 
  3. All OK.