This one is causing my troubles. I checked the wires at the front axle actuator again, I have 12V at the brown wire with key on but cannot get 12V to the lt blue wire.
I have easy access to used parts so I tried another tccm that is located behind the light switch under the dash.
still same result, no 4wd.
This truck is really clean for our area but I still decided to clean the grounds on the left side of the engine. The terminal looked great even before I cleaned it.
The wires are good and the connectors do not have any bent terminals or corrosion. I still have no 4wd.
Any other suggestions? I am running out of ideas to check.