2002 Buick LeSabre Seat Heater Not Working

BUICK RIVIERA
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JAVENT
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I have a 2002 Buick lasabre 44,352 miles , V6 3800 Series 11. The driver seat heater doesn't heat. I have replaced the door switch and switched the module under thr seat with the module under the passeener seat ( that heats ) with no luck. Is there a sensor or device between the door switch and the module under the seat that may be the culprit? Please help.
Thanks Johnny
Apr 10, 2007 at 9:53 AM
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MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
ther may be a fuse...if not in the car, out under the hood in the distrbution box.
Apr 17, 2007 at 4:19 AM
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THAIS
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I hqve a 2003 LeSabre Limited and have the same problem - no heat on the driver's side. The fuse is in the fuse block located under the rear seat - probably the same in the 2002. My fuse is OK. Maybe yours isn't!
Good luckl
Apr 17, 2007 at 5:03 AM
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JAVENT
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Why is the fuse or fuse panel for the front seat heater under the back seat . I have current to the door switch and module under the seat, because the switch lights up Hi or Lo and the module under the seat makes a clicking noise when I press the door switch maybe not enough current to operate the heater ??? I will find this critter.
Thanks Johnny
Apr 20, 2007 at 2:08 AM
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THAIS
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[quote:bf63fc87e4="javent"]Why is the fuse or fuse panel for the front seat heater under the back seat . I have current to the door switch and module under the seat, because the switch lights up Hi or Lo and the module under the seat makes a clicking noise when I press the door switch maybe not enough current to operate the heater ??? I will find this critter.
Thanks Johnny[/quote:bf63fc87e4]

Why? Your guess is as good as mine! Check your owner's manual - in the 2003 Limited, in the rear underseat fuse block, #7 is the driver's door module and #16 is the left front heated seat. (so many wires/circuits - so many fuses and relays!). Other than that, I don't know what to tell you except that I had mine in for a service check and was told the heating element had to be replaced - for large dollars!
Apr 20, 2007 at 2:40 AM

Suggested Repair

Check the heated-seat fuse in the rear underseat fuse block. If the switch lights and the under-seat module clicks but the seat still does not heat, the seat heating element may need replacement.

Conversation Summary

A 2002 Buick LeSabre driver seat heater does not heat after the door switch was replaced and the under-seat module was swapped with the working passenger module. An expert suggested checking the fuse, including the under-hood distribution box. Another owner said the related fuse is in the rear underseat fuse block and, with a good fuse, a shop attributed the same problem to a failed heating element. The owner reports power at the switch and module, with the switch lighting and the module clicking.

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