Now that it is getting colder I've noticed that the driver's heated seat isn't working on our 2001 V40. The lights are on, but no heat. The passenger's side works fine. I'd like tocheck to see if the seat is getting power, but I don't know which connector to check. There are a lot of them under the seat. Can some one tell me which connectors to check for power and also whichto see if the heater wiring is intact?

 

The power from fuse #5 for the driver's seat heater is the blue/red wire. There will also be a pink/white from the climate control module and a black to earth (ground).

The power for seat movementis two blue/yellow wires and a black.

 

Thanks, so to see if power is getting to the heating element I would check for 12V between the blue/red wire and the black? Then to make sure the button on the climate control module is sending a signal I would test the pink/white and black - also 12V. If those check out right then I would suspect the relay. Could I swap it with the passenger seat relay that is working? Which connectors would I use to test for continuity of the seat element?

 

Also check if u have continuity with a ohm meter for the seat heater pad (should be green connector under seat) Even if seat heater have open circuit and have been fixed.. it will need to go back to dealer to hook up computer to erase codes and make it work again.. hopes that help