Page 7 of 43
82D-7
MR-413-X44-82D000$200_eng.mif
V1
82D
ACCESS/SAFETY
Fault finding - List and location of components
1UCH
2Passenger Compartment Fuse and Relay Box
3One touch window/anti-pinch module
4Transponder ring
5Rain/light sensor & interior temperature sensor
6Sunroof/anti-pinch
7Tailgate lock
8Door lockENGINE HARNESS
FRONT ENGINE WIRING & ADDITIONAL HEADLIGHTS
DOOR WIRING
CEILING WIRING
PASSENGER COMPARTMENT WIRING
REAR BUMPER WIRING
TAILGATE WIRING
MR-413-X44-82D000$200_eng.mif
Page 8 of 43

82D-8
MR-413-X44-82D000$300_eng.mif
V1
82D
ACCESS/SAFETY
Fault finding - Role of components
The system comprises the following components, according to whether or not it features the deadlocking function:
Electric central door locking:
Electric central door locking is operated using the locking button.
Tailgate lock: The electric tailgate lock is also used to open the tailgate. The tailgate locking and unlocking
function is controlled by the UCH.
Transponder and radiofrequency key:
–The transponder in the key enables the following signals to be sent to the UCH:
–Key identifier signal.
–Immobiliser code signal.
–The key radiofrequency (for top of the range vehicles) enables the key identifier to be transmitted
when the button is pressed. A radiofrequency wave is sent to the UCH to perform the user's request if the
key is allocated to the vehicle (opening the doors and the tailgate).
One touch window/anti-pinch module:
–One-touch window: the window is raised by pulling the button up and it is lowered by pressing down on
the button; pressing the button again has no effect on the initial operation.
–Anti-pinch: if an object prevents the window from closing, the anti-pinch function triggers the window to
be lowered by 50 mm. Access - ProtectionWithout
deadlocking activation/
deactivationWith deadlocking
activation/deactivation
Transponder keyX
Transponder and radiofrequency keyX
Locking and unlocking using locking buttonX
Tailgate electric lockXX
Tailgate opening switchXX
Tailgate locking switch (with key)X
MR-413-X44-82D000$300_eng.mif
Page 9 of 43
82D-9
MR-413-X44-82D000$400_eng.mif
V1
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
Page 11 of 43
82D-11
MR-413-X44-82D000$400_eng.mif
V1
ACCESS/SAFETY
Fault finding - Operating diagram82D
Locking with deadlocking:
Simple door locking:
Page 12 of 43
82D-12
MR-413-X44-82D000$400_eng.mif
V1
ACCESS/SAFETY
Fault finding - Operating diagram82D
Door deadlocking:
140 and 141
Page 13 of 43
82D-13
MR-413-X44-82D000$400_eng.mif
V1
ACCESS/SAFETY
Fault finding - Operating diagram82D
Door unlocking:
Tailgate opening control
140 and 141
Page 14 of 43
82D-14
MR-413-X44-82D000$500_eng.mif
V1
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
Page 16 of 43

82D-16
MR-413-X44-82D000$500_eng.mif
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"