Seat Temperature Sensor: Testing and Inspection

1. Disconnect and isolate the battery negative cable. Disconnect the 4-way heated seat cushion element wire harness connector from the power seat wire harness. The power seat wire harness connectors for the seat cushion and seat back heating elements are secured to a bracket located under the rear edge of the seat cushion frame.
2. Using an ohmmeter, check the resistance between the seat sensor circuit and the seat temperature sensor input circuit cavities of the 4-way heated seat cushion element wire harness connector. The sensor resistance should be between 2 kilo ohms at 15 °C (60 °F) and 200 kilo ohms at 30 °C (85 °F). If not OK, replace the faulty seat cushion cover trim and sensor unit.