Sensor Testing
WARNING: This page is about a different car, the 2003 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
- Turn the ignition switch to the OFF position. Disconnect and isolate the battery negative cable (Fig 1 ). Disconnect the ambient temperature sensor wire harness connector.
- Measure the resistance of the ambient temperature sensor. At room temperature (approx. 68°F), the sensor resistance should be between 9-11 Kilohms (9000-11000 ohms). The sensor resistance should read between these two values. If OK, refer to SENSOR CIRCUIT TESTING . If not OK, replace the faulty ambient temperature sensor.