After driving a while the dash lights turn off

2005 KIA SEDONA
150,000 MILES • 6 CYL • 2WD
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BREJER1969
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When driving at night, i turn headlights on and dash lights up. When i drive a ways they go off. Seems like mostly when turning right and when i open door they go off until i turn control off then back on.
Dec 14, 2019 at 9:02 AM
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STRAILER
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Hello,

This sounds like there is a bad connection inside the headlight switch or TNS relay. here are instructions in the diagrams below to help you change it out and test the relay:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Here is the relay location and the wiring diagrams so you can see how the system works. Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
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Dec 16, 2019 at 1:40 PM