Heated seat not working

2003 CADILLAC CTS
190,000 MILES • 3.2L • 6 CYL • 2WD
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ERIC ALRIDGE
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  • 26 POSTS
Where is the fuse for the driver side heated seat? it’s not working when I push the bottom it pops up on the screen but seat not getting hot.
Mar 7, 2020 at 12:54 PM
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ASEMASTER6371
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Good afternoon,

I attached the location of the fuse for you along with the diagram.

Test for power to the fuse with a test light or voltmeter.

Roy

Mar 7, 2020 at 1:49 PM
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STEVE W.
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While it could be the fuse it is much more common for the heating element itself to be bad. The fuse is in the left side fuse block under the rear seat. A quick way to test it is to look under the front seat and find the seat control module. There will be two connectors. You want the 4 pin one. It has the temperature sensor and the heater wires in it. You can use a test light connected to ground to probe the 4 pins, you should find power on pin A. with the seat heater on. Pin B is a controlled ground, if you connect the test light to pins A and B it will change brightness if you select between off low and high.
Mar 7, 2020 at 1:54 PM
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ERIC ALRIDGE
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  • 26 POSTS
Thanks.
Mar 7, 2020 at 2:36 PM
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ASEMASTER6371
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You are welcome.

We are always glad to help.

Roy
Mar 7, 2020 at 2:48 PM