Have 02 f250 7.3 auto trans, 4wd don't work have replaced just about everything, new switch, control motor on transfer case new module under dash, fuses and relays are good, what else is there, should I have power to the switch only power I have is for the light.
You need someone with a scan tool to monitor the system and locate the failure.
There are codes for this system and you can acuate the motor at the case.
November, 17, 2012 AT 1:01 PM
That's what ford garage told me code was, the trans esof motor, other garage told me code was module, still not getting answer I need, should I have power on switch in dash and where does that power come from