Heated Seat Element

HEATED SEAT ELEMENT
The wire harness connectors for the seat cushion and seat back heating elements are located under the seat, near the rear edge of the seat cushion frame.

Seat Cushion
1. Disconnect and isolate the battery negative cable. Unplug the 4-way heated seat cushion wire harness connector.
2. Check for continuity between the two heated seat driver circuit cavities of the seat cushion cover half of the heated seat cushion wire harness connector. There should be continuity. If OK, go to Step 3. If not OK, replace the faulty seat cushion cover.
3. Check for continuity between one of the heated seat driver circuit cavities of the seat cushion cover half of the heated seat cushion wire harness connector and the seat cushion frame. There should be no continuity. If OK, go to the Seat Back test. If not OK, replace the faulty seat cushion cover.

Seat Back
1. Disconnect and isolate the battery negative cable. Unplug the 2-way heated seat back wire harness connector.
2. Check for continuity between the heated seat driver circuit cavity and the ground circuit cavity of the seat back cover half of the heated seat back wire harness connector. There should be continuity. If OK, go to Step 3. If not OK, replace the faulty seat back cover.
3. Check for continuity between the heated seat driver circuit cavity of the seat back cover half of the heated seat back wire harness connector and the seat back frame. There should be no continuity. If OK, test the heated seat sensor.
Seat Temperature Thermostat

If not OK, replace the faulty seat back cover.