Question about 2000 Buick LeSabre

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Drivers seat heater will not switch on. New fuse installed.

Drivers seat internal heater wont work. No light on switch for high or low setting. Replaced the fuse,

When trying to switch heater on and off there is a click under the drivers seat which sounds like a relay trying to switch. Don't know which on is which uder the seat.

I have not been able to get a wiring diagram either.

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The switch works the relay, the relay powers the heater, being a 12volt heating element, it's bound to have a good size wire going to it, make sure the wire feeding that relay is hot, it will be a larger inline fuse or a fusable link,it will come off a main power source,I.E. the starter or something like that, the small fuse you replaced is for the relay curcuit,good luck

Posted on Feb 01, 2010

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