Master ground switch operation

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4x4Pinz
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Master ground switch operation

Post by 4x4Pinz » Tue Apr 30, 2019 8:48 pm

I know there is a relay under the drivers seat that protects the electrical system in case the ground switch is turned off while the truck is running. What I don't know is what exactly happens when the ground switch is turned off to the electrical system. How/what does the relay do?

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