2009 RENAULT TWINGO RS Electrical Equipment - Access Safety Workshop Manual

82D-9
MR-413-X44-82D000$400_eng.mif
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82D
ACCESS/SAFETY
Fault finding - Operating diagram
List of components and associated component codes:
Component code Components
140 Driver's door central locking
141 Passenger's door central locking
560 Tailgate switch
645 UCH
1016 Passenger compartment fuse and relay box
1042 Deadlocking activation/deactivation relay
1391 Central door locking switch
1733 Tailgate locking switch (with lock barrel)
MR-413-X44-82D000$400_eng.mif

82D-10
MR-413-X44-82D000$400_eng.mif
V1
ACCESS/SAFETY
Fault finding - Operating diagram82D
Locking without deadlocking:

82D-11
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ACCESS/SAFETY
Fault finding - Operating diagram82D
Locking with deadlocking:
Simple door locking:

82D-12
MR-413-X44-82D000$400_eng.mif
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ACCESS/SAFETY
Fault finding - Operating diagram82D
Door deadlocking:
140 and 141

82D-13
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ACCESS/SAFETY
Fault finding - Operating diagram82D
Door unlocking:
Tailgate opening control
140 and 141

82D-14
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82D
ACCESS/SAFETY
Fault finding - Function
Access/Safety function layout
Access (RF*) and protection (immobiliser) middle and top of the range vehicles:
The access function (locking/unlocking) is provided by the UCH and the key.
Exchanges between the key and the UCH are carried by radio frequency transmission at 433 MHz.
When the switch is pressed, the key sends out a radiofrequency wave signal. The UCH receives the signal via its
built-in aerial.
The UCH authenticates the key and performs the user request if the key is allocated to the vehicle.
Access via radiofrequency:
PROTECTION (Immobiliser)
*RF: Radio frequency
Key
UCH
–Authentication of the key
–Door locking system
Radio frequency
signals
Magnetic field used as communication
medium between the key transponder and
the transponder aerial
Key +
transponderTransponder aerial
MR-413-X44-82D000$500_eng.mif

82D-15
MR-413-X44-82D000$500_eng.mif
V1
ACCESS/SAFETY
Fault finding - Function82D
The immobiliser function is divided between three coded computers (UCH, injection and the key). The key and the
UCH are linked by a magnetic field created by the transponder aerial. The UCH and the injection system are linked
by the multiplex network.
When the + After ignition is switched on, the key sends its identifier to the UCH via the transponder aerial located on
the ignition switch. The UCH goes through an authentication procedure with the key via the transponder aerial. If the
key is allocated to the vehicle, the starter command is authorised.
The UCH then carries out a coded exchange with the injection computer.
When the authentication messages with the UCH have been exchanged, the injection can be unlocked and
authorise the starting of the engine injection.
The injection is unlocked and engine starting authorised as soon as the UCH has authenticated the injection
computer.
KeyUCH
signals–Authentication of the key
–immobiliser authentication of
injection system and thus
authorisation of starter activation.
Transponder aerial
(Key identification)Serial
connection
Injection computer
–UCH immobiliser authentication
–engine injection authorisation
Multiplex connections
Wire connections

82D-16
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V1
ACCESS/SAFETY
Fault finding - Function82D
The ACCESS/SAFETY function is divided into three sub-functions: Access, Protection and Starting.
1. Access
a) Locking/unlocking by the user
The UCH receives the request from the user via the key.
When the key has been authenticated, the UCH executes the user's request (locking, unlocking, etc.).
Locking is indicated by 2 flashes of the direction indicators.
The direction indicators flash once when unlocking takes place (idem when unlocking the tailgate).
The maximum number of keys allocated to one vehicle is 4.
b) Electric Central Door Locking Button
This button enables the vehicle to be locked or unlocked and has no effect if the vehicle has been locked from the
outside.
Pressing the radiofrequency electric central door locking button when a door is unlocked will lock all the doors and
the electric central door locking indicator light will come on.
c) Deadlocking
To have this function, it is necessary to have a top of the range UCH on a right-hand drive vehicle, and configuration
LC003 Deadlocking must be WITH (see Configuration and programming).
This function is activated by pressing the locking button on the key and holding it down for more than 2 seconds.
This function enables the interior and exterior door opening control to be deactivated.
It is impossible to deadlock the vehicle if the + accessories feed is active, if the lights are switched on or if the hazard
warning lights are activated.
The following statuses can be viewed:
–ET044 Electric central door locking button
–ET061 Tailgate unlocking request
–ET463 "Door(s) or tailgate"
–ET061 Tailgate unlocking request
–ET186 Door locking button short press
–ET189 Door unlocking button press
Exchanges between access function components
Keykey identifier information + switch N˚ pressed
UCH
Press on "locking" or "unlocking"