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 connector terminals A and B, use a dryer the thermostat of the seat warmer unit 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 degrees C (99 degrees F ) .




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

Seat Back
1. Remove the front seat.




2. 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.