This article covers the Fuse and relay Wiring for a 2018 RAM HD truck. It should be the same for most late Model 4th Gen RAM Trucks
| Run State Fuse and Relay Wiring |
| Run / ACC State Fuse and Relay Wiring |
| Upfitter Fuse and Relay Wiring |
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Run State Fuse and Relay Wiring
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Run / ACC State Fuse and Relay Wiring
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Upfitter Fuse and Relay Wiring
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