Today was fun. Realized that the 97 had the thermal 4x4 actuator and my 99 frame has the electric. So had to put together a little harness. The white plug runs the 4x4 indicator it is a switch that is closed when the actuator is in. It has a separate switch on the older trucks. The newer electric has just one wire coming from the actuator. I know the adapter harness just run wires but I wasn't exactly sure how that worked and didnt want to mess it up so I threw a small relay in there. Now when the wire off the actuator fires it closes the relay and the closes the indicator circuit like the original switch would do.
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If you dont own non insulated splices buy them. They changed my world. So much nicer than insulated but you do have to heat shrink.
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I had to pull power from the 4wd circuit to keep keyed 12v to the electric actuator. The brown wire people tap off the transfer case. I ran it from the convenience center because i wasnt running one wire down the passenger side.
I saw online where people were pulling power from the center prong of that plug spot but the right one tested as connected to the 4x4 fuse for me.
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Used a connector off an aftermarket fusebox space was tight a regular female spade wouldn't fit.
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The other wiring was pretty easy. The Grey wire is connected to the Grey power for the thermal actuator. It is used to control the switching. Where the wire from the convenience center provides a constant power. I combined the grounds from the relay and the actuator and ran that ground with the light blue to the thermal connector which i cut off the old actuator.
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