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Starting at the wrong place Posted by Ari [Email]  (#2847) [Profile/Gallery]
(more from Ari) on Tue, 11 Nov 2003 08:08:02
In Reply to: Heated seat control switch- how to remove it?, Todd inMA, Mon, 10 Nov 2003 17:54:09 Members do not see ads below this line. - Help Keep This Site Online - Signup |
As the others have said, the switch is long and hard to remove. I usually try and find a switch around it to remove, then reach back and coax it out. Failing that, I use two thin flat-blade screwdrivers to work it out a little at a time.
As a hint, tie a string to the wire harness, so when it jumps back into the dash when you disconnect the switch, you can find it again.
Chances are very good that the switch (actually, a controller), is NOT the problem. Seat heater problems are most of the time a break in the seat heater pad, most usually at the front of the bottom cushion, on the door side. That portion gets the most flexing. Just slide the seat forward to access the electrical connector under the seat. You want to check for continuity on the heating element - it should be only a couple of ohms. Also make sure that the ground to chassis is good.
The heat pad is a resistance wire with a temp sensor, which is a resistor that varies with temperature. The switch in the dash is a controller - it measures the seat temp using the sensor, and if the seat is colder than the switch set point, a relay in the controller closes, and drives 12 volts to the heater pad until the seat warms up to slightly above the set point.
I've had a seat controller fail, but by far, it's been the heating pads, better than 10 to 1. You can re-solder the break in the pad and be good for a few more years.
See Quasi's site (http://quasimotors.gar.net/) for lots of info on fixing seat heaters.
posted by 192.249....
, Tue, 11 Nov 2003 08:08:02 <-- Viewing This Message
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