Quote Originally Posted by Tone
...but realize when you open the circuit to the clutch it is NOT in 100% 2WD mode, there is still plenty of torque going to the front wheels.

I did not know that.
I was hoping that it would be in 2wd until the VSS tells the TOD that the truck is moving faster than 5 mph.
That means that there must still be a mechanical connection somewhere.

I'll see what the PWM signal is at <5 mph vs. >5mph.

Also, there's a few suspect pins on the connector. There is a 4wd output at pin 3 that I want to look at in addition to the solenoid wire at pin 4.