Page 4 of 48

82D-4V1 MR-376-X76-82D000$020.mif
82D
UCH
Vdiag No.: 0F
Electric central door locking:
Central locking and unlocking of the side door is dependent on the presence of the fuel tank cap sensor.
The doors can be centrally locked and unlocked using the CPE* button.
Luggage compartment lock:
The luggage compartment locking and unlocking command is provided by the UCH.
Front driver and passenger locks:
The front driver and passenger door locking and unlocking command is provided by the UCH.
Side door lock:
Central locking and unlocking of the side door is carried out by the UCH.
Transponder and radiofrequency key:
–the transponder in the key sends the following signals to the UCH:
– Key identifier signal.
– Immobiliser code signal.
The transponder is also involved in the Immobiliser function.
The radiofrequency key is used to transmit the key identifier information after pressing the button once. A
radiofrequency wave is sent to the UCH to carry out the user's request if the key is allocated to the vehicle (locking
or unlocking the doors and the tailgate).
Injection
When the authentication messages with the UCH have been exchanged, the injection can be unlocked and
authorise the starting of the engine.
The injection system is unlocked and engine starting is authorised as soon as the UCH has authenticated the
injection computer.
Electric window:
The driver has a one-touch electric window: a short press of the lowering button gives one-touch window lowering.
Another press stops the initial movement.
The passenger has a standard electric window.
CPE*: electric central door locking.
ACCESS - SECURITY
Fault finding – Role of components
Page 6 of 48
82D-6V1 MR-376-X76-82D000$030.mif
ACCESS - SECURITY
Fault finding – Operating diagram82D
UCH
Vdiag No.: 0F
Central door locking
• List of system components and associated component codes:
Component
codeComponent name
645Passenger compartment electrical control unit
123Central door locking switch
260Passenger compartment fuse box and relay
140Driver's door central locking
141Passenger's door central locking
142Luggage compartment lid central locking
1200Side door locking ECU (depending on version)
1199Fuel cap presence sensor (depending on version)
Page 8 of 48
82D-8V1 MR-376-X76-82D000$030.mif
ACCESS - SECURITY
Fault finding – Operating diagram82D
UCH
Vdiag No.: 0F
Layout of the Access - Safety function
Access (RF*) and protection (engine immobiliser system) of the vehicle:
The access function (locking/unlocking) is provided by the UCH and the key.
Communication between the key and the UCH is made via 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 carries out the user's request if the key is allocated to the vehicle.
Access via radiofrequency:
PROTECTION (Immobiliser)
RF*: Radiofrequency
Unité Centrale Habitacle (Passenger
Compartment Central Unit)
Key
– Authentication of the key
– Door locking system
Radio frequency
signals
Key +
transponderTransponder ring
Magnetic field used as communication
medium between the key transponder and the
transponder aerial
Page 10 of 48

82D-10V1 MR-376-X76-82D000$040.mif
ACCESS - SECURITY
Fault finding – Function82D
UCH
Vdiag No.: 0F
Locking / Unlocking
This system can function with up to four remote control units (the UCH can only manage four different codes).
The radio frequency signal receiver is integrated in the UCH.
The central door locking button is inhibited once the doors have been locked by the remote control.
Locking and unlocking the doors with the remote control is confirmed by the hazard warning lights flashing (if all the
doors are closed properly):
– locking: 2 flashes,
– unlocking: 1 flash.
Depending on the equipment level, unlock the doors and ensure that none of the doors is opened within the next
30 seconds otherwise the system will automatically re-lock the vehicle opening elements (without the hazard
warning lights flashing).
The UCH controls the vehicle interior lighting. If a courtesy light is left on, the UCH will cut the lighting supply after
a period of approximately 30 minutes.
The Top of the range version dims the light progressively after the doors have been closed by radio frequency
remote control.
Spare keys are supplied without a code or a number.
It is possible in the event of a key being stolen or lost or at the customer's request, for a vehicle key to be de-
allocated.
It can be reassigned to the same vehicle if necessary.Note:
Unlocking can be performed by the UCH, if the airbag computer has detected an impact or if it is faulty (see 88C,
Airbag - Seat belt pretensioners).
Page 13 of 48
82D-13V1 MR-376-X76-82D000$050.mif
ACCESS - SECURITY
Fault finding – Configuration82D
UCH
Vdiag No.: 0F
Access and Safety function configurations in the UCH
Configuration readings available using the diagnostic tool:
*RAID: Renault Anti-Intruder Device.
*CPE: Electric central door locking.
• Check the configurations in the Read configurations menu Equipment required:
CLIP diagnostic tool
Configuration
readingName of configuration Option Configuration
LC012Automatic relockingWITH OR WITHOUT
SC008 UCH type LC097Type of keyONE BUTTON or
TWO BUTTONS
LC113AirbagWITH OR WITHOUT
LC170RAID* function authorisation by diag
toolWITH OR WITHOUT
LC171Radiofrequency functionWITH OR WITHOUT
LC172Type of central door locking button
(CPE)*1 POSITION or 2
POSITIONS
Page 22 of 48

82D-22
AFTER REPAIRFollow the instructions.
Deal with any other faults.
Clear the stored faults.
V1 MR-376-X76-82D000$080.mif
ACCESS - SECURITY
Fault finding – Interpretation of faults82D
UCH
Vdiag No.: 0F
DF274
PRESENTCENTRAL DOOR LOCKING BUTTON1. DEF: (-) button jammed
2. DEF: (+) button jammed
NOTESThe fault is declared stored after activation of the door locking button.
Special Note:
Use Wiring Diagrams Technical Note for Kangoo VLL.
Check the condition and presence of fuse F31 in the passenger compartment fuse and relay box, component code
260 (see MR 374 Mechanical, 81C, Fuses, Fuses: List and location of components).
Check the connection and condition of the UCH connector, component code 645 and check the electric door
locking control connector, component code 123.
If the connector(s) are faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the insulation and continuity of the following connections:
•20B between components 645 and 123,
•20A between components 645 and 123.
•MK of component 123.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the fault is still present, contact the Techline.
UCH_V0F_DF274P
Page 30 of 48
82D-30V1 MR-376-X76-82D000$140.mif
82D
UCH
Vdiag No.: 0F
Tool command Diagnostic tool name Comments
AC004Central door locking Refer to the interpretation of the command.
AC005Central door unlocking Refer to the interpretation of the command.
AC006Driver's door unlocking Refer to the interpretation of the command.
AC136Remote locking buzzer Refer to the interpretation of the command.
SC003Spare Refer to the interpretation of the command.
SC015Key allocation Refer to the interpretation of the command.
ACCESS - SECURITY
Fault finding – Command summary table
Page 31 of 48

82D-31
AFTER REPAIRCarry out another fault finding check on the system.
Deal with any other faults.
Clear the stored faults.
V1 MR-376-X76-82D000$150.mif
82D
UCH
Vdiag No.: 0F
AC004
AC005
AC006OPENING ELEMENT LOCKINGOPENING ELEMENT UNLOCKING
DRIVER'S DOOR UNLOCKING
NOTESThere must be no present or stored faults.
This command is for testing locking relay operation.
This command lasts for 2 seconds.
Special Note:
Use Wiring Diagrams Technical Note for Kangoo VLL.
Check the condition and connection of the UCH connector, component code 645.
If the connector is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the condition and connection of the connectors of the components: driver's door central locking,
component code 140, passenger door central locking, component code 141, luggage compartment lid central
locking, component code 142 and side door central locking computer, component code 1200 (depending on
version).
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the continuity, insulation and the absence of interference resistance on the following connections:
Driver's door electric lock:
–20AU between components 140 and 645,
–20D between components 140 and 645.
UCH_V0F_AC004/UCH_V0F_AC005/UCH_V0F_AC006
ACCESS - SECURITY
Fault finding – Interpretation of commands