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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 401 (Engine Controls - Self Diagnostics - 8.1L) >> Diagnostic Tests >> DTC P0116: ECT Sensor Performance (Sierra & SILVERADO) >> Test Description

Test Description

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The numbers below refer to the step numbers in the diagnostic procedure.

  1. 3

    This step tests for excessive resistance in the ECT sensor circuit.

  2. 4

    This step tests for excessive resistance in the IAT sensor circuit.

  3. 8

    This step tests for a skewed sensor through the range of temperatures affecting this DTC.

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