Audi A5 - The Homelink Garage Door Opener

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The HomeLink garage door opener
New features
The new Audi A5 is equipped with the HomeLink
"universal garage door opener" as featured on other
models. The "universal garage door opener" was not
previously integrated into the vehicle networking
system.
This all changes with the new Audi A5, where the
garage door operating unit E284 is connected to the
convenience system central control unit J393 as LIN
bus user and the garage door operation control unit
J530 is connected to the onboard power supply con-
trol unit J519 as a LIN bus user.
Garage door opener system overview
393_022
5A
Termina l 1 5
Convenience system
central control unit
J393
LIN LIN
Convenience
CAN
Onboard power supply
control unit
J519
Garage door
operating unit
E284
Garage door
operation
control unit
J530
Diagnostics
As a result, the system is diagnosable by the tester for the first time. The convenience system central control
unit J393 recognises and registers the following faults:
– Garage door operating unit - no signal, no communication
– Garage door operating unit – implausible signal
– Garage door operating unit – faulty
– Garage door opener button 1 - implausible signal
– Garage door opener button 2 - implausible signal
– Garage door opener button 3 - implausible signal
The following adaption channels for the garage door opener are integrated in control unit J393
– Depending on country, different transmission frequencies are utilised
The onboard power supply control unit J519 detects the following faults and enters them into the fault mem-
ory:
– Garage door opener sender unit - no signal, no communication
– Garage door opener sender unit - implausible signal
– Garage door opener sender unit - faulty
In the case of both control units, extensive data blocks are available for fault-finding.