GF80.61-P-2009GZ Unlock, Function

GF80.61-P-2009GZ Unlock, Function
- with CODE (889) Keyless Go

Component Identification:

Function requirements
^ Circuit 30

Possible system activation
^ Pulling at a door handle.
^ Pulling rear-end door handle.

Function sequence for door handle control point
The capacitive sensor in the door handle recognizes when the corresponding door handle is pulled slightly and transmits a signal to wake up the Keyless Go control unit and the Keyless Go system (KG)
The Keyless Go control unit transmits a signal via the Keyless Go cockpit antenna and Keyless Go interior compartment antenna to mute all transmitter keys in the interior compartment for a certain period of time. Moreover, the Keyless Go control unit causes the Keyless Go transmitter key to transmit its authorization via the left rear door Keyless Go inductive antenna.

This access authorization is received by the roof antenna module and is relayed to the Keyless Go control unit. The Keyless Go control unit transmits this message to EIS control unit via the CAN-B bus
The EIS control unit checks the access authorization; after positive check, it transmits the "Unlocking" command via the CAN-B bus. If a door handle is now pulled within 0.5 s, the Hall sensor in the door recognizes this and the Keyless Go control unit activates the servo motor of this door.

All door locks are equipped with a servo motor to accelerate unlocking. This motor is directly actuated by the Keyless Go control unit to open to rotary tumbler. The CL motors are responsible for opening the doors.

The actuation of the central locking depends on the adjustment of the transmitter key

Possible adjustments:
^ Unlock CL globally
^ Unlock CL selectively
Driver door control point: Selective unlocking Passenger door control point or rear door: Global unlocking

A button for pressing is located on the corresponding outer side of the door handle; the vehicle is locked or convenience closed with this button. A capacitive sensor with which the vehicle is unlocked in the event of contact, is located on the inside of each door handle Each door handle is read in by the Keyless Go control unit with two lines.

Function sequence for rear-end door handle control point
When the rear-end door handle is pulled the rear-end door handle switch (S88/9) is actuated. The procedure is recognized by the rear SAM control unit and relays the message to the Keyless Go system (KG) via the CAN-B bus. Then, the Keyless Go control unit requests the Keyless Go transmitter key to transmit its authorization via the Keyless Go trunk antenna. This authorization is relayed to the Keyless Go control unit by the roof antenna module. The Keyless Go control unit transmits the message to the EIS control unit, it checks the access authorization and transmits the "Unlocking" command via CAN-B bus. The further function sequence is the same as for the door handle control point.