Seat Heater Test

1.Remove the driver's or front passenger's seat.

2.Disconnect the 3P connector (A) and 2P connector (B) from the seat heater.

Driver's Seat 

Front Passenger's Seat 

3.Check for continuity between the No. 1 and No. 2 terminals of the seat-back heater 2P connector. There should be continuity.

4.Reconnect the 2P connector (B), check for continuity between the No. 1 and No. 2 terminals, the No. 1 and No. 3 terminals of the 3P connector, and the No. 2 and No. 3 terminals of the 3P connector. There should be continuity.

5.If the continuity check is not as specified, replace the appropriate seat heater.