After replacing battery and alternator windows and blower motor not working properly

Tiny
TRAVIS HILL
  • MEMBER
  • 2007 KIA SPORTAGE
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 210,000 MILES
So I just had to change my battery and alternator. For some reason now my windows and blower motor work when I turn the rear wiper on. Why?
Wednesday, December 4th, 2019 AT 4:38 PM

1 Reply

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

This sounds to me like you have a short to power between the Body Control Module [BCM] which controls the rear window wiper and the windows and your blower motor wiring. In the diagrams down below I have included the wiring diagrams for your vehicle's Computer Data Lines and the Heating Ventilation and Air Conditioning [HVAC] circuits, including the blower motor, for your vehicle. I have also included a guide on how to find a short to ground. You will need to use a Digital Multi-meter [DMM] to use these guides, so here is a link below explaining how to use one, if needed:

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Please go through these guides and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros
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Thursday, December 5th, 2019 AT 2:30 AM

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