Add resistor to switch wiring to make warmer - Saab 9-5 Bulletin Board - Saabnet.com
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Add resistor to switch wiring to make warmer
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Posted by 2000AERO [Email] (more from 2000AERO) on Sat, 31 Oct 2009 10:15:58 Share Post by Email
In Reply to: heated seat duration change w Tech II, Mark from Toronto, Fri, 30 Oct 2009 09:36:26
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As other posters have said, the front seats don't cycle on time - they are "on" all the time whenever the switch is turned on. They do cycle on the actual temperature in the seat, and that reading comes from a thermister located in the seat.

As I learned from one of the other saab forums, you can "trick" the switch into thinking that the seat is cooler than it actually is - this will cause the seat heater to run longer/warmer.

320 ohms give a good boost in temperature - the higher the ohms the greater the temperature boost.

Pin 6 is the wire you want to break into. Just connect the resistor in series with the wire. For front left, it should be yellow/red and for front right, its green/white. These are the colors WIS says, which sometimes is wrong so the colors could be different.

Michael


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