Transfer Case Control Module causing my truck not to start?

Assuming you mean the starter motor does not 'CRANK' the engine (?) ... Failed battery, poor battery cable connections, failed starter motor or neutral safety switch... Do you have a 12 volt test light or a volt meter? .. IT is not the t-case module!!

Transfer case modules can be fail on those trucks, but I agree with pushrod's comments and advise. I have yet to the t-case module affect starting. The tap test pushrod specified will quickly tell you the answer if it works. Otherwise you will need to determine if you have a starter or starter control problem by testing inputs at the starter. This requires voltage testing tools and knowledge but is do-able at home on the ground. If you are done going at it yourself we at Street Tech Auto Care would be honored to help. Otherwise keep testing and we can talk you through the solutions as you get them.