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2005 Chevy Express 3500 high beam issue

Old October 8th, 2018, 5:27 PM
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Default 2005 Chevy Express 3500 high beam issue

hi, I have 2005 Chevy Express 3500 cutaway van with an issue of drivers side high beam not working. I have replaced the headlights with new bulbs on both sides, checked and tested the 6 fuses associated with headlights, high beam indicator works and passenger high beam works, checked wire harness end for corrosion and loose wires, Any suggestions as to what to check next?
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Old October 8th, 2018, 11:08 PM
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The engine compartment box, has a low beam relay and a high beam relay. According to the diagram I am looking at.

56 is high beam and 58 is low. If they are the same part number, try swapping them.

https://www.autogenius.info/gmc-sava...e-box-diagram/
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