Hello everyone,
I am new to the forum and am trying to figure out why my 96 RR 4.0 won't shift into low. I think I have isolated the problem to the transfer case control module under the driver's seat. I have removed it from the vehicle and was wondering if there is any way to tell for certain if it is bad. Is there a test procedure? I took it apart and didn't see anything that looked suspect. Just looking for some advice from someone who may have been down this road before. Thank you for any help.
Wilson

 

I believe the only person that can help you is a skilled mechanic with the scanner necessary to scan the ECU.