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Old 12-28-2018, 10:39 AM   #5
95 S_Trucker
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Join Date: Oct 2009
Location: Lancaster, PA
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Re: 89 S10 Backup Lights Dead (how to remove NS/BU switch)

At the NSS/BUS, you can jump the light green wire and the dark blue wire. Then turn the key on. See if your BU lights work. If they work, you know your switch is bad.

Those switches do go bad. I've replaced quite a few over the years.
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