Replaced the GEM.. need help

Reply Subscribe

Thread Tools

Search this Thread

Nov 5, 2009 | 06:34 PM

302lx

Thread Starter

Freshman User

Joined: Oct 2009

Posts: 36

Likes: 0

Replaced the GEM.. need help

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 !!

Nov 5, 2009 | 06:52 PM

projectSHO89

Hotshot

Joined: Jan 2004

Posts: 19,768

Likes: 1,082

From: St Louis

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

Nov 5, 2009 | 08:07 PM

302lx

Thread Starter

Freshman User

Joined: Oct 2009

Posts: 36

Likes: 0

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

Nov 6, 2009 | 01:31 AM

Bluegrass 7

Lead Driver

Joined: Sep 2006

Posts: 7,907

Likes: 143

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.