How can i test for voltage on the electrical motor for 2WD and 4WD that is on the transfer case?

1997 FORD EXPEDITION

200,000 MILES • 5.4L • V8 • 4WD • AUTOMATIC

JONATHAN CARINO

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The dial in the instrument panel when i switch between all options whether it be 2L or 4H, or 4L nothing happens at the electrical motor, it’s stuck on 4x4 Low. i need assistance and want to get to the bottom of my concern.

Dec 16, 2022 at 5:12 PM

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Usually, it is the transfer case motor that is bad which will cause the vehicle to stay in 4wd but here are the wiring diagrams so you can check for power and ground, and I have included the instruction on how to change the actuator out for a new one in case you need it. This guide can help you check for power and ground. Also please check the fuses before you begin.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem.

Images (Click to enlarge)

Dec 17, 2022 at 11:15 AM