Heated Seat Element

Refer to Heated Seat System for the location of the proper heated seat system diagnosis and testing procedures. To check the heated seat element and sensor circuits, proceed as follows. The wire harness connectors for the seat cushion heated seat element and sensor and for the seat back heated seat element are located under the seat, near the rear edge of the seat cushion frame. Refer to Wiring Diagrams for the location of complete heated seat system wiring diagrams.

Fig.1 Seat Cushion Element Connector:

Seat Cushion
1. Disconnect and isolate the battery negative cable. Disconnect the green 4-way heated seat wire harness connector. Using an ohmmeter, check for continuity between pins A and B of the seat cushion wire harness connector. There should be continuity. If OK, test the seat back element as described below. If not OK, check the green 2-way seat cushion connector. If OK, replace the faulty seat cushion cover and element assembly.

Seat Back
1. Disconnect and isolate the battery negative cable. Disconnect the green 2-way heated seat back wire harness connector. Using an ohmmeter, check the resistance between the two pins. There should be continuity. If OK test the heated seat control module as described.If not OK replace the faulty seat back cover and element assembly.