Have you ever needed to retrieve Allison trouble codes or diagnose an Allison world transmission? How about an imported truck transmission? Isuzu NPR /NQR, Mitsubishi Fuso, Nissan UD, Ford lCF and International CF trucks? Have you found it frustrating to find information on how to get the diagnostic information required to successfully diagnose why the transmission light is on, or why the truck/transmission won't move or work correctly? and how to retrieve transmission trouble codes?

Here's the answers to your problems!  we can give you the specific information by Truck/Transmission model on how to retrieve transmission trouble codes without any expensive tools or software, and trouble code definitions, and transmission troubleshooting information. Use the menu  according to the type truck or transmission you need information for. ( Specific Truck pages have Transmission Identification information on them)