Bypass the vehicles immobilizer VATS Pass lock PATS and Passkey transponders for enabling remote car starter installations 2-way data link port for data-to-data RS-232 communication with data link equipped remote starters and security systems General purpose plug for wire-to-wire connections with non-data link equipped remote starters and security systems Self-learning algorithm automatically detects the vehicle during installation and adjusts accordingly No programming required Data Key Bypass Module For Remote Car Starter