Keyless Entry Transmitter: Description and Operation

GF80.57-P-6010TX Transmitter Key Component Description

Component Identification:

Design
The transmitter key consists of an electronic key and a mechanical key (7). The electronic key contains an FM radio transmitter, an infrared transmitter/receiver, a computer chip and transmitter button (1, 2, 3 and 6) as well as two button cells The mechanical key (7) can be unlocked and removed with the unlocking slider (5)

1 "Lock" transmit button
2 "Unlock" transmit button
3 "Remote trunk lid release (RTR)" transmit button
4 LED "Battery control"
5 Unlocking slider
6 "Panic alarm" transmit button (with code (763) radio remote control with panic switch)
7 Mechanical key

Locking central locking (CL)
Actuate "Locking" (1) transmit button
^ Press once (locking CL globally)
^ Pressing and holding while aiming at left front IR receiver (A26/1) (convenience closing)

Unlocking central locking (CL)
Actuate "Unlocking" (2) transmit button
^ Pressing once when set to "Selective" (driver's door and fuel filler flap are unlocked)
^ Pressing twice when set to "Global" (unlocks all)
^ Pressing twice when set to "Selective" (unlocks all)
^ Pressing and holding while aiming at left front IR receiver (convenience opening)

Switchover unlocking from "selective" to "global" or vice versa:
^ Hold "Lock" button (1) and "Unlock" button (2) simultaneously for approx. 5 s until the "Battery control" LED (4) flashes twice.

Panic alarm
with code (763) radio remote control with panic switch actuate "Panic alarm" (6) transmitter button:
^ press approx. 2 s (to trigger panic alarm)
^ press approx. 0.5 s (to terminate panic alarm)

remote trunk lid release (RTR)
actuate "RTR" transmitter button (3)
^ press approx. 0.5 s (trunk lid opens)

Drive authorization stage 3 (DAS 3)
When the transmitter key is inserted into the EIS control module it is supplied with power via an induction coil Data is exchanged via the infrared transmission and receiving unit for the purpose of verifying drive authorization.

Unlocking/locking vehicle doors or unlocking trunk lid
When the transmitter button (1, 2 or 3) is pressed a radio signal is transmitted by the transmitter key.Parallel to the radio signal an infrared signal is transmitted to the left front IR receiver If the signal is valid, the vehicle doors are unlocked or lock and the trunk lid is unlocked.

Mechanical key
The mechanical key (7) can be removed from the transmitter key after actuating the release slider (5).When the driver's door is unlocked with the mechanical key (7) the CL is not actuated.

The anti-theft alarm system (ATA) (with code (551a) anti-theft alarm system (ATA)) is not disarmed.

Convenience feature (CF)
The signals for convenience actuation are only transmitted via infrared, not via radio.

Battery check
When the transmitter button (1, 2 or 3) is actuated the "Battery control" LED (4) comes on momentarily and indicates thereby the proper state of the batteries (two button cells) in the transmitter key.

Panic alarm
(with code (763) radio remote control with panic switch)
When the "Panic alarm" transmitter button (6) is pressed for approx. 2 s the panic alarm is started, the panic alarm is interrupted when the transmitter button (6) is reactuated or when the transmitter key is inserted in the key opening on the EIS control module.

Keyless Go (KG) (with code (889) Keyless Go)
Communication with the vehicle via inductive signals and radio signals.Determine request location in relation to vehicle.