Kia Troubleshooting Questions? Ask a Mechanic
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This model uses an IPS control module/ecu that controls the head light low beams and high beams on separate circuits.The low and high beams look to use the same power fused source so I dont see this as a fuse issue here but the IPS can fail in the interior junction box fuse panel and cause this issue here.Both low and high beams use the same ground signal as well so most likely the ground is all o.k.
If you have not had the fault codes checked/read out with a scan tool that will plug in and communicate with all computers in your model this needs done.Any codes set in any of the computers will help diagnose to locate this fault here.I suspect the IPS control module may need replaced to correct this issue here.The other component can be the dimmer switch that switches from low to high beam.In some cases you can tell it is this switch at fault if you can flicker the low beams jiggling the switch.If they do flicker then the switch needs replaced.If they do not then this will need tested further electronically to make sure the IPS needs replaced.
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