Operation CHARM: Car repair manuals for everyone.

Seat Temperature Element: Testing and Inspection

SEAT WARMER UNIT INSPECTION

Seat Cushion
1. Remove the front seat.
2. Remove the seat cushion trim.






3. While inspecting for continuity between the connector terminals A and B, use a dryer to warm the thermostat of the seat warmer unit on seat cushion.






4. When the ohmmeter indicates that there is no continuity, turn off the dryer, then use a thermometer to measure the temperature of the thermostat.
5. Verify that the temperature is approx. 37 °C (99 °F).






6. Using an ohmmeter, verify that there is continuity between the seat warmer unit connector terminals when temperature drops to approx. 28 °C (82 °F).
- If not as indicated in the table, replace the seat warmer unit.

Seat Back
1. Remove the front seat.
2. Remove the seat back trim.






3. verify that the continuity between terminals A and B is as indicated in the table.
- If not as indicated in the table, replace the seat warmer unit.