GF80.61-P-3012SX Engine Start/Stop, Function

GF80.61-P-3012SX Engine Start/Stop, Function
- with CODE (889) Keyless Go

Component Identification:

Function
The engine or circuits 15C, 15R, 15 can be switched on or switched off by pressing the start/stop button on the EIS control unit.

Start engine, function

Function requirements
^ The transmitter key is located in the vehicle interior
^ DIRECT SELECT gear selector switch (S16/13) is in the "P" or "N" position.
^ Foot brake actuated

Function
When the start/stop button in the EIS control unit is pressed, a request is transmitted to the Keyless Go control unit.It then transmits locating signals via the center console Keyless Go antenna and the interior Keyless Go antenna to allow the transmitter key to determine its position.

Simultaneously with this procedure, the Keyless Go control unit requests the transmitter key to transmits an access authorization code.
The transmitter key transmits its access authorization code and its position to the rear window antenna amplifier module, which relays it to the Keyless Go control unit; the access authorization code is sent to the EIS control unit via the interior CAN.If valid, circuit 15R and circuit 15 are switched on and the engine is started.

Possible error messages in the instrument cluster if function prerequisites are not fulfilled
^ If a transmitter key is not recognized in the interior compartment when starting, the instrument cluster indicates "Key not recognized" and the start attempt is interrupted (c. 15R and c. 15 remain off).
^ If the DIRECT SELECT gear selection switch is not in position "P" or "N" when attempting to start, the instrument cluster indicates: "To start. Select drive position P or N".

Activating c.15C, 15R or 15 without engine start
If the foot brake is not depressed when the start/stop button is actuated, only circuit 15R is switched on.Repeated actuation activates circuit 15. Further repeated actuation switches circuit 15R and circuit 15 off.If the driver door is closed, c. 15C remains active for approx. 30 minutes.

Shut off engine, function
The engine can be switched off any time via the start/stop button

Function
The signal "Switch off engine" is transmitted to the EIS control unit by pressing the start/stop button and then the engine is switched off via circuit 15.With the driver door closed, circuit 15C remains active for approx. 30 minutes.

Switch-off function of engine depending on vehicle speed
^ Speed below 3 km/h: Switch off occurs immediately
^ Speed above 3 km/h: Switch off occurs only after pressing start/stop button for an extended period (approx. 3 seconds).

Starting requests, function
Each time the vehicle is started or if a door is opened with the engine running, the EIS control unit requests the Keyless Go control unit to check the transmitter key.
If a transmitter key is not recognized in the passenger compartment, the instrument cluster indicates: "Key not recognized".