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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 174 (Engine Cooling System) >> Diagnostic Information and Procedures >> DTC P112F: Radiator Coolant Temperature Sensor Not Plausible >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Vehicle OFF, remove the B34B Engine Coolant Temperature Sensor.
    2. NOTE:

    A thermometer can be used to the used to test the sensor off the vehicle.

  2. Test the engine coolant temperature sensor by varying the sensor temperature while monitoring the sensor resistance. Compare the readings with the Temperature Versus Resistance  table and verify that the resistance is within 5 percent of the specification.
    • If not within the specified range, replace the B34B Engine Coolant Temperature Sensor.
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