What is the difference between a Transponder, Electronic and VATS key?
A.A Transponder key transmits and responds by means of a transponder chip. The chip transmits, receives and responds to a coded signal data using radio frequency transmissions. When the key is inserted and turned in the ignition it sends a unique code signal to the on-board computer or ECM (Electronic Control Module). If the computer recognizes the signal it will allow the vehicle to start. An Electronic key contains a battery powered electronic circuit board rather than a transponder. This circuit board in this key mimics a transponder by transmitting a unique code signal to the vehicle’s on-board computer Electronic keys feature a two part design. The electronic components are separate from the blade. [click to enlarge] A VATS key has a resistor embedded within the key-blade. Each resistor has one of fifteen possible values. Sometimes the resistors are referred to as a “pellet” or “chip”. These keys require only a reader to determine the resistor value. They do not require a cloning
