1999 Chevy Tahoe heated seats

Tiny
CHEVY1999TAHOE
  • MEMBER
  • 1999 CHEVROLET TAHOE
Electrical problem
1999 Chevy Tahoe V8 Four Wheel Drive Automatic

my driver side heated seat is not working I have power going to it
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Tuesday, January 5th, 2010 AT 7:36 PM

14 Replies

Tiny
MATHIASO
  • MEMBER
Hello chevy1999tahoe

If there is power to the module but it still not working , the module need to be replaced


http://www.2carpros.com/forum/automotive_pictures/46384_0996b43f8024b9d2_3.jpg



I'm sending the wiring diagram to your email.
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Wednesday, January 6th, 2010 AT 9:19 AM
Tiny
CHEVY1999TAHOE
  • MEMBER
Why can I find the module in the car
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Wednesday, January 6th, 2010 AT 4:22 PM
Tiny
MATHIASO
  • MEMBER
Hello chevy1999tahoe

Try unplugging the connector use a volt meter on it, if there is voltage at the connector, the heating element is No good.
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Thursday, January 7th, 2010 AT 12:41 AM
Tiny
CHEVY1999TAHOE
  • MEMBER
How I know if the module is working and what should the heated element read when I check them
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Thursday, January 7th, 2010 AT 8:41 PM
Tiny
MATHIASO
  • MEMBER
Hello chevy1999tahoe

Lets start from the beginning.
My understanding of the first post was that the driver side heated seat is not working and you have power going to it.
What happens when you push on the button (switch) for the driver heated seat?
The driver and passenger side heated elements share the fuse 20A in the fuse box. If only the driver side is not working, then the fuse is o.K. You can try to unplug the connector to the heated element under the driver seat and while activating it (pushing on the button) check with test light if there is power at the connector.
If there is no power, the problem is with the switch or the wire from the switch to the connector is broken.
If there is power, the heated element is defective and will need to be replaced.
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Friday, January 8th, 2010 AT 1:22 AM
Tiny
CHEVY1999TAHOE
  • MEMBER
I have power to the switch I have 0.9 ohms at the purple and black wire
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Sunday, January 10th, 2010 AT 12:52 PM
Tiny
MATHIASO
  • MEMBER
Hello chevy1999tahoe _
good job

Remove the connector to the switch with engine off, check continuity on the switch(where the black and purple wire connect)
if you get infinite resistance, replace the switch.
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Sunday, January 10th, 2010 AT 1:49 PM
Tiny
CHEVY1999TAHOE
  • MEMBER
I put the driver side switch in the pass side and it work on the pass side
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Sunday, January 10th, 2010 AT 2:10 PM
Tiny
MATHIASO
  • MEMBER
Hello _

Tell me everything you have done then I will know what need to be done.
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Sunday, January 10th, 2010 AT 2:16 PM
Tiny
CHEVY1999TAHOE
  • MEMBER
I replace the switch from driver to pass and the switch the module and check for power and I have power check the resistance on the purple wire and black wire and I got 0.9 ohms I read online that if 1 element is out they both do not work
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Sunday, January 10th, 2010 AT 2:29 PM
Tiny
CHEVY1999TAHOE
  • MEMBER
I swap the switch amd module and the pass still works I check for power I have power I check the heater element on the back of the seat the purple and black wire resistance is 0.9 with it unplugged
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Sunday, January 10th, 2010 AT 2:38 PM
Tiny
MATHIASO
  • MEMBER
You need a new heater element on the driver side. If there is power to the element but it does not work.
Replacing the element will solve the problem.
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Sunday, January 10th, 2010 AT 3:49 PM
Tiny
CHEVY1999TAHOE
  • MEMBER
I have 2 heated element so I have to replace both of them
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Sunday, January 10th, 2010 AT 4:11 PM
Tiny
MATHIASO
  • MEMBER
Yes, replace them and that should take care of the problem
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Sunday, January 10th, 2010 AT 6:18 PM

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