Help Needed four wheel drive not working

[LAPLANT]

my 4x4 has not worked since i purchased the truck
I have checked all the fuses and relays and they are good
thought it was the GEM module so i replaced it with a new one from the dealership it made no difference
nothing at all happens when I turn the knob to any position no indicater lights come on or anything
hoping someone has some insight on this problem
thanks in advance for any help

 

[dpantazis]

are your hubs frozen in the auto position? can you turn them by hand?
check the vacuum hoses. they are known to crack.

 

[LAPLANT]

Thanks for the reply but it is an electrical problem There is no power going to the switch or to the transfer case actuator motor

 

[Patrick Feeley]

Is this on a 94-97 truck (sounds like you may be referring to a later model)? If not, you may get additional responses by posting in the appropriate forum. Cheers!