zabuch

anyone have trouble with the passenger heat button ,driver side works not passenger. 03 c4 cab

Dharn55

Could be the Tip switch, the fuse, the relay located under the seat, the wiring or the heated cushions themselves. Although if one of the cushions goes bad (back or seat) the other should still heat up. I would check the fuse first. It it is good then swap the Tip switch from the drivers side and see if it works. Their is a left and right side for the switch but the function and plugs are the same. If this Doesn't fix the problem the I would try the relay located under the seat. You will have to undo the four bolts that hold the seat on the tracks and tilt the seat to get at the relay.

Take a look at Dennisvogle.com and check out his DIY for heated seat in a Boxster. Lots of pics etc. there.

Dharn55

Here is the link.

http://dennisvogel.com/heatedseats/index.html

Ubermensch

Actually, if the system sense a break in either cushion the seat won't heat. I ended up having the replace my heating element in the seat cushion of the driver seat a couple of years ago.

-Shawn

Divot

Doubt it's a fuse. That's an all or none, I think. Maybe wiring or switch.