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Home >> Pontiac >> 2006 >> G6 Base, 2.4 B >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 2.4L - DTC P0010 To DTC P0341 >> DTC P0112 or P0113 >> Circuit/System Testing >> DTC P0112
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DTC P0112

  1. Turn ON the ignition, with the engine OFF.
  2. Disconnect the IAT sensor.
  3. Observe the IAT Sensor parameter with a scan tool.
    • If the IAT Sensor parameter is less than -39°C (-38°F), then replace the IAT sensor.
    • If the IAT Sensor parameter is more than 149°C (300°F), then test the IAT sensor signal circuit for a short to ground.
    • If the IAT sensor signal circuit tests normal, then replace the ECM.
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