After replacing battery and alternator windows and blower motor not working properly
2007 KIA SPORTAGE
210,000 MILES • 2.0L • 4 CYL • 2WD • AUTOMATIC
TRAVIS HILL
MEMBER
4 POSTS
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?
Dec 4, 2019 at 4:38 PM
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SCGRANTURISMO
✓ASE Certified 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:
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.