my service 4x4 light came on in my 2003 dodge 1500, 5.7L hemi. when i went to look at the codes it came up with TCCM internal error, which i think stands for transfer case control module. also the lights on the **** to go from 2 wheel drive to 4 hi and 4 lo arent working. can anyone tell me if i need a new module, or would that warning come up for any other reason?

Thanks, I appreciate any advice you can give.