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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1146 (Engine Controls And Fuel - 3.6L - DTC P0008 To DTC P0161) >> DTC P0111, P0112 or P0113 >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the IAT sensor.
    2. IMPORTANT: A thermometer can be used to test the sensor off the vehicle.
  2. Test the IAT sensor by varying the sensor temperature while monitoring the sensor resistance. Compare the readings with the Temperature Versus Resistance - Intake Air Temperature Sensor table and verify that the resistance is within 5 percent of the specification.
    • If the Resistance vs Temperature is not within 5 percent, replace the IAT sensor.
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