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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 303 (Overhead Console (Service Information)) >> SENSOR, Ambient Temperature >> Diagnosis and Testing >> Ambient Temperature Sensor >> Sensor Circuit Test

Sensor Circuit Test

WARNING: This page is about a different car, the 2010 Dodge Charger and 2010 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

Refer to the appropriate wiring information for complete circuit schematic or connector pin-out information.

  1. Turn the ignition switch to the Off position. Disconnect and isolate the battery negative cable. Disconnect the wire harness connectors from the ambient temperature sensor and the TIPM.
  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 TIPM harness connector. There should be continuity. If OK, go to  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 TIPM harness connector and a good ground. There should be no continuity. If OK, test the EVIC operation. Refer to Electrical/Message Center/CENTER, Electronic Vehicle Information - Operation . If not OK, repair the shorted ambient temperature sensor signal circuit as required.
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