Gm Mode 22 Scan Tool By Terry [top] Jun 2026

to access enhanced diagnostic data from General Motors vehicles. Key Features and Capabilities

Open “GM Mode 22 Scanner by Terry.exe”. Set the correct COM port and baud rate (8192). gm mode 22 scan tool by terry

If you own a 1982–1995 GM vehicle with TPI, TBI, LT1, or Crossfire Injection, the is not a luxury—it is a necessity. Cheap generic readers will lie to you or show blank data. Professional Tech 2 or GDS2 tools will refuse to communicate. Only a dedicated Mode 22 tool bridges the gap. to access enhanced diagnostic data from General Motors

Connect a cheap USB scope or use high-speed data logging. or Crossfire Injection

Here is everything you need to know about why this tool is a game-changer for GM diagnostics. What is "Mode 22"?