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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 (Message Systems) >> Ambient Temp Sensor >> Diagnosis And Testing-Ambient Temperature Sensor >> Sensor Circuit Test

Sensor Circuit Test

WARNING: This page is about a different car, the 2004 Dodge Dakota and 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn the ignition switch to the Off position. Disconnect and isolate the battery negative cable. Disconnect the ambient temperature sensor wire harness connector and the HVAC control harness connector.
  2. Connect a jumper wire between the two terminals in the body half of the ambient temperature sensor harness connector.
  3. Check for continuity between the sensor return circuit and the ambient temperature sensor signal circuit cavities of the HVAC control harness connector. There should be continuity. If OK, go to Step 4. If not OK, repair the open sensor return circuit or ambient temperature sensor signal circuit to the ambient temperature sensor as required.
  4. Check for continuity between the ambient temperature sensor signal circuit cavity of the HVAC control harness connector and a good ground. There should be no continuity. If OK, refer to DIAGNOSIS AND TESTING-COMPASS MINI-TRIP COMPUTER  . If not OK, repair the shorted ambient temperature sensor signal circuit as required.
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