GF80.61-P-0005RT Keyless Go, Function

GF80.61-P-0005RT Keyless Go, Function
- with CODE (889) Keyless Go


The Keyless Go system (KG) is a "keyless" access to the vehicle. The vehicle engine is started without using the transmitter key (A8/1).
It is sufficient to just carry the Keyless Go transmitter key.

Since the Keyless Go system (KG) is a special equipment, the vehicle can be operated optionally as usual with the familiar transmitter key and the EIS control unit (N73).
When the vehicle is standing still, the Keyless Go system (KG) is interrupted by inserting the transmitter key into the EIS control unit. When the transmitter key is inserted, it not possible to actuate the Keyless Go function.

The Keyless Go control unit (N69/5) is important for the following items. The EIS control unit is the master control unit for all components relevant for closing and has priority over the Keyless Go control unit.

Unlock

The vehicle can be unlocked by:
^ Pulling any door handle
(global or selective opening);

^ Pulling rear-end door handle
(only rear-end door opens).

Lock

The vehicle can be locked by:
^ Actuation of left front door handle switch (S17/19), left rear door handle switch (S17/20), right front door handle switch (S17/21) or right rear door handle switch (S17/22) on outer door handle.
^ Actuation of rear-end door Keyless Go button (S62/21) on rear-end door

The standard central locking (CL) remote control function is maintained parallel to the Keyless Go (KG) functions.

On vehicles with anti-theft alarm system (ATA), code 551, the antitheft alarm system (ATA) functions in the same manner as when locking/unlocking the CL with the transmitter key

Start engine and switch off
This function is accomplished by a start/stop button located in the EIS control unit.
The engine can be started or switched off by pressing the Keyless Go start/stop button in the EIS control unit unless a Keyless Go transmitter key is inside the vehicle.

It is also possible to start or switch off the engine "normally" with the transmitter key via the EIS control unit after removing the start/stop button

Locating areas of the transmitter key
In the following areas, the transmitter key is located and checked for validity when the system is activated

Area surrounding vehicle
^ Outer range (A) is covered by the left rear door Keyless Go antenna (A2/39).
^ Outer range (B) is covered by the right rear door Keyless Go antenna (A2/41).
^ Outer range (C) is covered by the trunk Keyless Go antenna (A2/35).







Passenger compartment
^ The inner area of vehicle (D) is covered by the Keyless Go cockpit antenna (A2/60) and the Keyless Go interior antenna (A2/61)
^ The outer areas on the opposite side (A, B and C) are also covered.

Sequence of position determination
The remote control requests a message from the antennas in a fixed sequence when the Keyless Go system (KG) is activated. From these messages, the transmitter key can determine its position in relation to the vehicle (different signal amplitudes) and can transmit it to the Keyless Go () control unit via the roof antenna module A2/93.