Seat Temperature Sensor: Testing and Inspection

For complete circuit diagrams, refer to Wiring Diagrams.

NOTE: ANY RESISTANCE VALUES (OHMS ) GIVEN IN THE FOLLOWING TEXT ARE SUPPLIED USING THE AUTOMATIC RANGE GENERATED BY A FLUKE(R) AUTOMOTIVE METER. IF ANOTHER TYPE OF MEASURING DEVICE IS USED THE VALUES GENERATED MAY NOT BE THE SAME AS THE RESULTS SHOWN HERE, OR MAY HAVE TO BE CONVERTED TO THE RANGE USED HERE.

1. Position the appropriate seat in the full forward position.
2. Make certain the ignition switch is in the OFF position.
3. Disconnect the heated seat wire harness connector from the seat cushion frame. Using an ohmmeter, check the resistance between the heated seat sensor input circuit cavity and the heated seat sensor feed circuit cavity in the heated seat wire harness connector. The heated seat sensor resistance should be between 1 kilohm and 100 kilohms. If OK, go to Step 4. If not OK, replace the faulty seat cushion heating element assembly.
4. Test the seat wire harness between the heated seat module connector and the heated seat wire harness connector for shorted or open circuits. If OK, refer to Diagnosis and Testing the Heated Seat Module in Electronic Control Modules, for the proper heated seat module diagnosis and testing procedures. If not OK, repair the shorted or open heated seat wire harness as required.