Replaced the GEM.. need help

302lx · #1 (**permalink**) 11-05-2009, 07:34 PM

Hey all! im looking for a diagram of the fuse block .. to know what fuse controls what? It seems to be going into 4x4 but the light dosent work just low range .. is there a fuse that controls this? Or did I buy a junk GEM? THANKS !!

projectSHO89 · #2 (**permalink**) 11-05-2009, 07:52 PM

GEM modules need to be programmed by a dealer for the vehicle in which it is to be installed.

302lx · #3 (**permalink**) 11-05-2009, 09:07 PM

same module out of same kind of truck ??should be same?? If not then everyone of them is different? everything else works

Bluegrass 7 · #4 (**permalink**) 11-06-2009, 02:31 AM

Without knowing how the function works in total for 4X4 HI and 4X4 LOW, how do you know it's the GEM?
There is a switch, a motor on the transmission, relays on the firewall, a vacuum actuator on the front axle assembly and vacuum hoses involved.
The GEM also controls other functions besides 4wd.
To explain it all here is a lot of text to type.
Good luck.

302lx · #5 (**permalink**) 11-06-2009, 04:11 PM

it worked fine until I changed GEM ! now it just doesnt come on .. Im hoping it is going in 4x4 i could live without the light

SMok · #6 (**permalink**) 11-07-2009, 01:21 AM

the truck you took it out of was probably a 2 wheel drive.

302lx · #7 (**permalink**) 11-07-2009, 06:41 AM

no! 4x4 low range works explain that and it said 4x4 on gem
does it matter oin the transmission manual or automatic

SMok · #8 (**permalink**) 11-07-2009, 10:46 AM

yes it does