Passive Entry
NOTE: With the keyless vehicle system, the doors can be unlocked either individually or 'globally'.
The programming process is the same as on vehicles without a keyless vehicle system.
When a door handle or the release button on the liftgate is actuated, the relevant exterior antenna emits a low frequency signal.
Three exterior antennas are installed on the vehicle:
The passive vehicle key is then activated and it transmits a coded radio frequency signal.
The coded radio frequency signal from the passive key is received by the radio frequency receiver.
The radio frequency receiver transfers the signal to the keyless vehicle module.
If the module recognises a valid key signal, the actuated door or liftgate is unlocked. Unlocking of this door or liftgate is performed directly by the module.
If global unlocking is activated, the module transmits the unlocking request over the MS-CAN to the GEM (generic electronic module). The GEM then activates the individual door modules.
NOTE: .
Item | Description |
A | Radio frequency signal (from the passive vehicle key to the radio frequency receiver) |
B | Radio frequency signal (from an interior antenna to the passive vehicle key) |
1 | HS-CAN databus |
2 | DLC |
3 | MS-CAN databus |
4 | Gateway (instrument cluster) |
5 | keyless vehicle module |
6 | Electronic steering lock unit |
7 | Interior antenna |
8 | Passive key (radio remote control with integrated emergency key) Refer to Component Description |
9 | RF remote receiver |
10 | BPP (brake pedal position) |
11 | Start/stop button |
12 | PCM |
NOTE: In order for engine starting to be enabled it is necessary for a valid passive key to be present inside the vehicle.
A total of four internal antennas are installed, for identification of the passive vehicle key:
Three states can be switched to via the start/stop button:
The following options are available:
actuate the clutch pedal and the start/stop button.
When the start/stop button is pressed, the interior antennas of the keyless vehicle module are activated.
The passive vehicle key is then activated and it transmits a coded radio frequency signal.
The coded radio frequency signal from the passive key is received by the radio frequency receiver.
The radio frequency receiver transfers the signal to the keyless vehicle module.
For security reasons, a code enquiry is made to the PCM before the vehicle can be started.
The coding enquiry is made over the HS-CAN.
Starting is only enabled once confirmation has been received from the module.
The engine is switched off by actuating the start/stop button, provided the vehicle is stationary (vehicle speed = 0 km/h).
In an emergency, the engine can be switched off at any speed as follows: