Garage Door Opener Control Head: Description and Operation

GF68.05-P-0001CE Garage Door Opener, Function
- 204.0 as of 09
- 204.9
- with CODE (232) Garage door opener with frequency 284-390 MHz


Function requirements, general
^ C. 15R On
^ Garage door opener system functioning properly

Garage door opener, general
The garage door opener (A67n2) is a remote control capable of learning with which various receivers of the opening and locking systems for doors or gates can be activated.
The garage door opener is integrated into the inside rearview mirror (A67).
The signals from the garage door opener are read by the front SAM control unit with fuse and relay module (N10/1) via the wiper/inside rearview mirror LIN (LIN 2).

The garage door opener radio signal has a range of approx. 85 % of the original hand transmitter.

The garage door opener system comprises the following partial functions:
^ Function sequence, transmit radio signal
^ Function sequence, program the memories
^ Function sequence, erase the memories
^ Function sequence for resetting to delivery status
^ Function sequence for protection against misuse

Function sequence, transmit radio signal
When one of the following buttons is pressed, a radio signal assigned to this memory is transmitted:
- Button 1 garage door opener (A67s1)
- Button 2 garage door opener (A67s2)
- Button 3 garage door opener (A67s3)

The function is confirmed by the indicator lamp in the garage door opener (A67e4).

Function sequence, programming the memories
Hold down desired button for at least t = 20 s. As a result the system changes into learning mode which is displayed by the flashing of the garage door opener with f = 1 Hz. Continue to press selected button and hold original hand transmitter close to the garage opener transmitter unit with transmitter function activated for up to t = 90 s (s = 3 to 20 cm). The transmission frequency is now learnt. In the process the garage door opener transmitter unit searches for the suitable frequency among the possible transmission frequencies.

If the learning process is completed, this is confirmed by rapid flashing of the garage door opener indicator lamp with f = 5.6 Hz.

If the original hand transmitter is not compatible with the garage door opener, a universal receiver ("Fix Kit Receiver") which reacts to the in-plant programming of the garage door opener can be installed in the garage.

Function sequence, erase the memories
To erase the memories, press the two outer buttons (buttons 1 and 3) simultaneously for a period of a least t = 20 s. The garage door opener indicator lamp flashes for a period of t = 10 s. Release the buttons again during the flashing phase. The existing data of the memory locations is erased.

The garage door opener goes to the learn-in mode when one of the three buttons is pressed again.
If no programming is performed in learning mode during a period of t = 100 s, the garage door opener switches off automatically to protect the on-board electrical system.

Function sequence for resetting to delivery status
To reset, press the outer two buttons (button 1 and 3) simultaneously for at least t = 30 s.

Function sequence for protection against misuse
With each communication the front SAM control unit transmits a security code to the garage door opener via wiper/inside rearview mirror LIN. If the code transmitted does not coincide with the stored code, the channels learned in are erased. However, the national coding is maintained.