On early build vehicles, the universal transmitter can be identified by the Homelink® symbol and one red indicator light.
On late build vehicles, the universal transmitter uses the Lear Car2U® System. It is identified by the lack of a symbol, but with 3 red indicator lights. Each of the 3 buttons has a red indicator light located behind the 3 buttons.
The universal transmitter is an integral part of the LH sun visor and provides a convenient way to substitute up to 3 hand-held transmitters with a single built-in device. The universal transmitter can learn the radio frequency codes of most current transmitters. The universal transmitter:
Ford Focus Resetting The Keep Alive Memory (KAM) - Gasoline Engines (Powertrain Diagnostics)
Description
Resetting the KAM returns the powertrain control module (PCM) memory to its default
setting. Adaptive learning contents such as adaptive airflow, idle speed, refueling
event, and fuel trim are included. Clearing the continuous diagnostic trouble codes
(DTCs) and resetting the emis ...