Auto Tech Line
> The hands-free card also called “badge”, is able to replace both the traditional remote control locking command and the ignition key. When the driver is carrying the card, you only needs to place your hand on the door handle to unlock the car. you don't even need to take the card out of his pocket or bag.
The card is equipped with a memory for vehicle and user data
For each driver, the position of the seats is memorised, as are
other comfort elements such as air conditioning or car radio
As well as a transponder, the hands-free card contains electronic features for low-frequency communication.
To ensurethis radio link, the car contains several aerials dissimulated in
the external door handles or in the roof trim. When the
infrared sensor on a door handle is solicited, the computer
emits a series of very short encoded bursts. When the card
detects this emission, it sends back a code to signal its presence.
An encrypted dialogue is then set up between the computer and the card.
These two elements identify themselves
to each other through a complex exchange of digital messages.
Both the computer and card contain encryption algorithms based on mathematical operations.
To check that the card is indeed the one attributed to the car,
the computer sends a number to the card. At the same time,
it calculates the reply to be sent using its own algorithm and encryption key.
On receiving the number, the card calculates a result in turn
and transmits it to the computer. As the card and the computer have the same algorithm and the same key,
the two results must be identical. If they are, the computer is certain that
it has identified the card. This dialogue only takes 80 milliseconds.
Door unlocking and engine starting are then authorised. In order to prevent accidental unlocking if the user
remains near the car, this operation is only effective if the user takes hold of one of the door handles.
The system detects this gesture using infrared sensors located in the handles and authorises unlocking.
The command to lock the
doors is given either when the user orders it by means of the remote control,
or on some vehicles when the distance separating the card from the vehicle is too great for the radio link
to operate. In this case, the computer detects an “absence of response from the card”.
To start the engine, the computer dialogues again with the card to confirm its presence in the passenger compartment. If
such is the case, the engine is started by pressing the “start” button.
Hand-free key card
Hand-free key card
the hands-free card starting
the car can only be started when the card is detected in the passenger compartment. you doesn’t even need to take the card out of pocket or bag
When you have the card with you just pres the start button to star the vehicle
Once the vehicle detects the presence of the card,
and after checking that it is one of the card Once again,then car will start.
When you leave the car,and you switched off it is just as easy
and natural to lock it. just presses the button on the
door handle and the computer commands locking of all the
car’s closures. Finally, there are buttons on the card for manual access to locking and unlocking of the doors and boot.
Here, the card acts like a conventional remote control.
Here are some of the ways of deactivating the immobiliser:
Pressing the remote button on the key.
This is for earlier cars and vans. Turning the key in the ignition. This is for earlier cars and vans. Inserting the key card into the slot on the dash. This is for newer vehicles. Bringing the key card into the car. This is for newer vehicles equipped with proximity sensors. When attempting to diagnose a non starting vehicle, it is important to understand what sort of immobiliser your car has, and so what the correct procedure for turning it off, is. I.e. if the immobiliser is controlled by putting the key in the ignition and turning to position II, then it doesn't matter if the doors unlock from the one button remote, what matters is that the red light stops flashing when you turn the ignition to position II.
Megane II X84 2003-2006
- Renault Megane II Ph2 X84 2007+
- Renault Scenic II X64 2003+
- Renault Scenic II Ph2 X64 2007+
- Renault Laguna II X56 2000-2005
- Renault Laguna II Ph2 X74 2005-2007
- Renault Laguna III X91 2007+
- Renault Valsatis X73 2002+
- Renault Valsatis Ph2 X73 2006+
- Renault Espace IV X81 2003-2006
- Renault Espace IV Ph2 X81 2006+
- Renault Master Ph2 X70 2002-2006
- Renault Master Ph3 X70 2007+
- Renault Traffic II X83 2002-2006
- Renault Traffic II Ph2 X83 2007+
- Renault Kango MUX Ph2 X76 2002-2007
- Renault Kango X61 2008+
- Renault Clio II Ph2/3 X65 2002-2006
- Renault Clio Symbol
- Renault Clio Symbol 2010+ (BCM JC)*
- Renault Clio Thalia
- Renault Clio Campus
- Renault Clio Sedan
- Renault Clio Classic
- Renault Clio III 2005+
- Renault Clio III with key card
- Renault Modus 2004+
- Renault Grand Modus 2008+
- Renault Master III X62 2010+
- Dacia Duster 2010+ (BCM JC) *
- Dacia Logan X90 2004-2008
- Dacia Logan Ph2 X90 2008+
- Dacia Logan 2010+ (BCM JC) *
- Dacia Sandero B90 2008+
- Dacia Sandero 2010+ (BCM JC) *
- Dacia Solenza 2003-2005
- Renault-Samsung SM3 2006+
- Renault-Samsung QM5
- Renault-Samsung SM3
- Renault-Samsung SM5
- Renault Fluence 2009+ *
- Renault Twingo Ph2 X06 2002-2007
- Renault Twingo II X44 2007+
- Opel Vivaro 2002-2006
- Opel Vivaro Ph2 2007+
- Opel Movano Ph2 2002-2006
- Opel Movano Ph3 2007+
- Opel Movano B 2010+
- Nissan Primestar Ph2 2002-2006
- Nissan Primestar Ph3 2007+
- Nissan Platina 2002-2008
- Renault Latitude
- Renault Koleos