2014 Suburban wiring harness for TPMS and driver seat
October 22nd, 2018, 3:55 PM
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2014 Suburban wiring harness for TPMS and driver seat
2014 Suburban LTZ 4WD, w 125K+ miles. Fuse #25 keeps blowing and believe issue is either with electrical for TPMS or front driver seat. Do separate wiring harnesses exist for these to attempt to unplug and isolate the issue? Any other suggestions? Appreciate any help or direction.
October 23rd, 2018, 1:44 PM
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The fuse panel inside by driver's door, panel reads #25 DSM. This Fuse controls driver power seat movements and seat climate control, remote for vehicle lock and unlock, etc and the TPMS read out on the instrument panel. All these functions will work as normal until the fuse blows (at first this would last weeks, now minutes). Thanks again for any help or direction.
October 23rd, 2018, 2:26 PM
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I'd start by unplugging the seat heaters and the seat motors/controls (the simple stuff first). If you're not voltmeter challenged, you could put the amp-meter across the empty DSM fuse socket and watch the amp readings as you troubleshoot. If you see more than 10-20 amps on the meter, don't leave it connected very long or you'll start smoking wires. A safe way to find shorts would be to connect a 12V light bulb across the empty fuse socket, the brighter the glow, the bigger the short.
You might have a wire chaffing problem that has been getting worse since the fuse use to last longer.
You might have a wire chaffing problem that has been getting worse since the fuse use to last longer.
November 5th, 2022, 11:05 PM
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Same exact problem today!
Came home from running errands. TPMS alert was on dash, the keyfob to lock and unlock was not working, both front seat heaters stopped working. Changed fuse #25, and everything started working except the seat heaters. Just wondering what the original poster of this thread found out (yes, I know it's been a while but....) I guess a trip to the mechanic is warranted unless someone here has another suggestion.
TIA for any suggestions!
TIA for any suggestions!