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Broken Heated Seats

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Old Oct 21, 2007 | 08:34 PM
  #1  
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magnump90
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Broken Heated Seats

Hi All,

First post.
I have a 98 Navigator. Both heated seats broke at the same time. When you press the button for the heated seats, the light comes on.
Checked all fuses under dash and they were all fine.
Checked the fuses under the hood and found a 25 amp fused bad. Replaced the fuse. Seats still don't work. Re-checked the 25 amp fuse and it is still good.

What am I missing??? Could it be a bad relay?? The manual I have has a limited couple of pages of wiring diagrams that do not show the heated or power seats.

Thanks for the help !
 
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Old Oct 22, 2007 | 09:59 AM
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Are you getting voltage at the seat connector?
 
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Old Oct 23, 2007 | 08:20 AM
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I suggest you do a continuity check of the heater element, which is embedded in your seat cushions. They are notorious for breaking, due to the flexing when you sit on the seats. If this turns out to be your problem, do a search on this forum for procedures on how to replace the elements. You have to take the seat apart, but its not too bad.
 
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Old Oct 24, 2007 | 06:47 PM
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Thanks for the help. I am going to check the voltage at the plug under the seat.

I will check the continuity on the heater element. Both seats broke at the same time. Both heater elements should not be bad at the same time should they??

I will report back after the checks.;

Thank you for the help !
 
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Old Oct 25, 2007 | 08:46 AM
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Would be a stretch for both to quit at exactly the same time from broken elements. Checking for DC at the switch is the right approach.
 
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Old Oct 25, 2007 | 09:16 AM
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Like mentioned earlier, check the continuity of the element as well as checking the voltage at the connector for the heater. Our Expedition had to have the drivers side heater element replaced when the truck was only 2 years old, so I could see both sides failing.
 
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