× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: TrailBlazer transfer case code C0550
Posted to Technical Discussion Forum on 4/21/2008

Remove the tccm fuse and then reinstall,see if it comes back to life. If the tccm comes back to life it will need a reprogram. If it doesnt power up will need a tccm and programing. Seen it go both ways. Login to read more.