2016 Ford F-150 transfer case motor shifting from 2H to 4H to 4L and back to 2H. "/>
Here's the wiring diagram. As you can see by tracing through the circuit, it is in 2WD in this diagram, the limit switch has it stopped, and it will do nothing. When the switch is turned on (4WD position), the indicator will light showing that the 4WD is on, and relay one will activate. this will send current to the limit switch and activate.
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