Allison DOC 2024

Allison DOC (Diagnostic Optimized Connection) is the official diagnostic tool for Allison automatic transmissions. Covers 4th through 6th generation TCMs across the full product range: 1000, 2000, 3000, 4000 Series, TC10 TS, and eGen Flex. Capabilities include fault code diagnostics, TCM calibration, clutch fill adaptation, shift schedule programming, and transmission software updates. Critical tool for any heavy-duty truck or bus repair facility.