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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC - Automatic >> Diagnostic Information and Procedures >> DTC B0158, B0163, B0168, B0173, B0178, B0509, B0514, B3578 or B3583 >> Component Testing

Component Testing

  1. Ignition OFF, disconnect the harness connector at the appropriate temperature sensor.
  2. Test for the appropriate resistance between the signal terminal A or 1 and the low reference terminal B or 2. Refer to Sensor Resistance Table  Sensor Resistance Table for resistance values.
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