Follow-up on this situation. Spoke with service manager at TransDiesel in Lakeland Florida. He stated that the TCM would not cause the fuse to blow, most likely a wiring/connection issue. Their solution is rather that attempt troubleshooting of exsisting wire, they will run a new power(fused) wire and ground wire from battery to TCM. Since replacing fuses does not usually "FIX" the problem, and for reliabilty, I'm having this done by TransDiesel this week. (while I can drive it there!)
Russell Brock / Winter Haven , FL