Once I replace the Transfer Case Shift Control Module in my 2004 Suburban 1500, do I need to have it programmed? It is not lighting up and will not shift between 4WD and 2WD.
Country: United StatesMake: GMModel: Suburban 1500Year: 2004
Installed the Module (with neg. terminal off of battery and the fuse pulled). Once it was installed I put the fuse back and hooked up the battery and no lights on the module. The truck seems to be in 2WD.
Hello I'm Aran and I will give you my best effort to try and answer your question completely and to your full satisfaction.You are correct in your assumption, they will not light until they are programmed.Do you need any further assistance?
About how long does it generally take to program a new one?
And will I cause any damage to it by driving for a day or two before it's programmed
To program them is less than 1hr. Typically a dealer will charge 70-100 dollars give or take.What was wrong with the old module or why the replacement?
The FWD Lo stayed on and I was having issues with it switching between Hi, Lo and 2DW. The dealer put it on the computer and found it to be bad. They weanted to charge me $635 to replace. I bought the new one, installed it myself for about $300.
Ouch, did they give you any codes that led them to condemn the module?
No codes......am I ok to drive it for a day or 2 before I get it programmed?
I would make sure that it is indeed in 2wd and leave the module disconnected until you program it so as to avoid any issues. I have personally NOT driven one with an unprogrammed module, but would not want it to shift on me.
OK...that's all I needed. Thanks for your help Aran!
Best Regards, Aran
Current GM Technician