Continental Automotive ALFA434 User Guide

Continental Automotive

User Manual

of the

Continental

ALFA434

(ASK/FSK 433.92MHz)

Camelia Teicu
I BS AS EE/RF 1 of 6

Continental Automotive

1. SYSTEM OVERVIEW

The ALFA434 is a transmitter designed to provide remote keyless entry, passive entry,
passive engine start, and immobilization functionality, it is part of a larger system provided by
Continental which allows the customer to:

• Remotely start the engine.

• Remotely lock the doors.

• Remotely unlock the doors.

• Remotely open the trunk.

• Remotely find the car.

• Remotely activate the alarm (panic mode).

• Remotely unlock and lock doors in passive mode (PASE).

• Start engine in passive mode (PASE).

• Start the car via push button (IMMO immobilization).

• Use mechanical emergency key as back-up to access to the vehicle.

•

The system consists of PASE FOBIK, RFHM, and IMMO. The Remote Keyless Entry
(RKE)
and Start uses a Radio Frequency (RF) link for communication between the end user and
the vehicle; For Passive Entry and Passive Start function, FOBIK receives LF command
from RFHM via a Low Frequency (LF) link and responses back via RF link. The
Immobilization uses a Low Frequency (LF) link for communication/authentication between
FOBIK and IMMO.

Camelia Teicu
I BS AS EE/RF 2 of 6