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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 31 (ENGINE CONTROLS - 6.6L - DIAGNOSIS (DTCs P0402-P2636)) >> DTC P2199 >> Component Testing

Component Testing

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  1. Compare the resistance of the IAT 2 sensor to the temperature vs resistance table.
    • If the difference is more than 9 percent, replace the IAT 2 sensor.
  2. Compare the resistance of the IAT sensor to the temperature vs resistance.
    • If the difference is more than 9 percent, replace the IAT sensor.
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