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Seat Temperature Element: Testing and Inspection

Seat Heater Test

Driver's Seat
1. Remove the driver's seat.




2. Disconnect the 4P connector (A) and 2P connector (B) from the seat heater.
3. Seat Cushion Heater:
Check for continuity between the A3 and A4 terminals, and A4 and A2 terminals of the 4P connector A. There should be continuity.

4. Seat-back Heater:
Check for continuity between the B1 and B2 terminals of the 2P connector B. There should be continuity.

5. If the continuity is not as specified, replace the seat heater.
6. If only the seat-back heater fails to warm-up, check for on open in the YEL wire of the driver's seat wire harness.

Front Passenger's Seat
1. Remove the passenger's seat.




2. Disconnect the 4P connector (A) from the seat heater.
3. Check for continuity between the No. 1 and No. 3 terminals, and No.1 and No.2 terminals of the 4P connector. There should be continuity.
4. If the continuity is not as specified, replace the seat heater.