Electrical fluctuations

2006 KIA SPORTAGE
88,000 MILES • 2.7L • V6 • 2WD • AUTOMATIC
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KIAFLEA
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Had a power surge from a bad jump and had to replace my battery and alternator, some fuses, but wiring and relays were checked by a mechanic and no issues and is working fine now. Problem is after the car runs for around fifteen minutes the gauges quit working, the locks start activating randomly, exterior lights wont shut off besides head lights, and the radio, wipers, A/C, fluctuate. The car seems like it is losing rev when it starts acting up but doesn't actually shut off. No error codes or warning lights are showing up besides airbags which have been on for years.
Apr 5, 2019 at 2:33 PM
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SCGRANTURISMO
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Hello,

This sounds like your Body Control Module (BCM) might have taken a hit when this event happened. When a component like this is starting to fail it usually works just fine when it is cold, but when it warms up is when it will start to fail. This is because the internal circuitry on the circuit board will slightly expand as it heats up from the electrical current and where it was slightly damaged will now short across and effect different system that the module controls.
The BCM is located under the center console. I have included a wiring diagram for the BCM Circuit in the diagrams down below. Please check out this module and get back to us with what you find out.

Thanks,
Alex
2CarPros
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Apr 5, 2019 at 3:01 PM
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KIAFLEA
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Hey, got into the center console but the only two modules I'm currently seeing in the airbag one on the floor in front of the gear stick , and one under the radio with a etacs label. The part number is 95410-1F300 showing up as the ABS system though. Not sure if I needed to remove more of the dashboard to get to it. Thanks.
Apr 7, 2019 at 12:06 PM
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SCGRANTURISMO
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Hello,

I have included a picture of the location in the diagrams down below.

Thanks,
Alex
2CarPros
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Apr 7, 2019 at 12:52 PM
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KIAFLEA
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Alright. That is the same part that I was thinking it was. Thanks for your help.
Apr 7, 2019 at 12:57 PM
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STRAILER
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Use 2CarPros anytime, we are here to help. Please tell a friend.
Apr 9, 2019 at 2:02 PM