light RENAULT SCENIC 2008 J84 / 2.G Passenger Comparment Connection Unit User Guide

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - System operation
87B
87B-40
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - System operation
87B
87B-40V9 MR-372-J84-87B000$129.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
3.3 Special features of the rain sensor (if fitted to the vehicle)
The rain and light sensor is a single sensor, connected to the UCH by a single connection. This sensor is installed on
the windscreen.
The rain sensor enables the windscreen wipers to be operated automatically and controls the wiper speeds according
to the quantity of water on the windscreen.
The sensor is activated by setting the wiper stalk to AUTO position.
Depending on the vehicle's bodywork, two cases are possible for the operation of the rain sensor:
a) Phase 1 bodywork:
Automatic operation of the rain sensor is inhibited following ignition switch-off with the wiper stalk in the Auto position.
To reactivate operation when next switching on the ignition, set the wiper control stalk in the neutral position then
return it to the Auto position.
b) Phase 2 bodywork:
Automatic operation of the rain sensor remains active following ignition switch-off with the wiper stalk in the Auto
position.
For a vehicle which is fitted with a rain sensor, with automatic detection activated, the rear screen wiper starts to
operate if reverse gear is engaged and if the sensor has detected rain for more than 1 minute.
The wiper intermittent speed ring is used to modify the sensor's sensitivity to rain and therefore the time
between wipes.
When the vehicle is not fitted with a rain sensor, the intermittent speed position on the control stalk takes the place of
the Auto position.
The status ET118 Rain sensor sensitivity ring position can be interpreted if the vehicle is configured with rain
sensor and inhibits status ET096 Intermittent wipe ring position.
The operation of the rain sensor can be displayed using status ET114 Wiper request by rain sensor, and by
configuration reading LC044 Rain/light sensor.
Configuration CF035 Rain/light sensor is available during UCH configuration (SC008 UCH type) (see
Configurations and programming). Information displays Rain and light sensor Multiplex network
Steering
column
control UCH Protection and Switching Unit
Side lights Windscreen wiper
Dipped headlights
Main beam headlights

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - System operation
87B
87B-41
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - System operation
87B
87B-41V9 MR-372-J84-87B000$129.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
3.4 Special features of the headlight washers control wiring
The headlight washers control is wired differently depending on the type of vehicle:
–Phase 1 mechanical: on vehicles manufactured before 10/01/2005 for type BCEJRK and before 17/01/2005 for
type L.
1Headlight washers relay 1
2Headlight washers relay 2
–Phase 2 mechanical: on vehicles manufactured after 10/01/2005 for type BCEJRK and after 17/01/2005 for
type L, except phase 2 bodywork.
1Headlight washers relay 1
2Headlight washers relay 2

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - System operation
87B
87B-42
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - System operation
87B
87B-42V9 MR-372-J84-87B000$129.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
–Phase 2 bodywork:
1Headlight washers relay 1
2Headlight washers relay 2
3Multiplex network

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - System operation
87B
87B-43
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - System operation
87B
87B-43V9 MR-372-J84-87B000$129.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
4FUNCTION: LIGHTING
4.1 Sub-function: LIGHTING CONTROL
The UCH receives the request from the driver, from the lighting stalk, from the hazard warning lights button and, if
fitted to the vehicle, from the light detector.
The UCH requests the Protection and Switching Unit, via the multiplex network, to provide power to the side lights,
dipped headlights, main beam headlights and fog lights (front).
If a request to activate the lighting is made, the UPC provides power to the xenon bulb computers.
The dipped headlights are still supplied when the main beam headlights are activated.
The following statuses can be displayed:
ET081 Lighting stalk position.
ET082 Rear fog lights request.
ET085 Hazard warning lights switch.
ET083 Left-hand direction indicator request.
ET084 Right-hand indicator request.
If the UCH cannot determine the position of the control stalk, or inform the Protection and Switching Unit of the
control stalk's position, the Protection and Switching Unit will activate the dipped headlights.
4.2 Sub-function: LIGHTING POWER
The UCH controls the power supply for the rear fog light (a single one), direction indicators and interior lighting (roof
lights and footwell/floor lights).
The interior lighting request can be displayed using the ET112 Interior lighting control status.
Operation of the lights powered by the UCH can be checked using the actuator commands AC009 Rear fog lights,
AC022 Left-hand direction indicator, AC023 Right-hand direction indicator, AC021 Interior lights and AC027
Footwell/floor lighting.
Information displays Rain and light sensor Multiplex network
Steering column
controlUCHProtection and Switching
Unit
Rear fog light
Direction indicators
Interior lighting
Side lightsMain beam
headlights
Dipped
headlightsFront fog lights

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - System operation
87B
87B-45
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - System operation
87B
87B-45V9 MR-372-J84-87B000$129.mif
4.4 Special features of the light sensor (if fitted to the vehicle).
Information displays Rain and light sensor Multiplex network
Steering column
controlUCHProtection and Switching
Unit
The rain and light sensor is a single sensor, connected to the UCH by a single connection. This sensor is installed on
the windscreen.
The light sensor enables the side lights and dipped headlights to be operated automatically as soon as the vehicle is
in a dark place (tunnel, night, gloomy weather conditions, etc.).
The status of the light sensor can be displayed using ET115 Lights on request by light sensor, and by configuration
reading LC044 Rain/light sensor.
Configuration CF035 Rain/light sensor is available during UCH configuration SC008 UCH type (see
Configurations and programming).
To activate the automatic lighting function, press the AUTO button on the lighting stalk for at least 4 seconds. This
action is confirmed by two beeps.
To deactivate the automatic lighting function, switch the engine off and press the AUTO button on the lighting stalk
for at least 4 seconds. A beep confirms this action and the message Automatic lighting OFF appears on the
instrument panel.
Any other operation on the lighting stalk overrides and cancels automatic operation.
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
Side lightsWindscreen
wiper
Dipped
headlights
Main beam
headlights

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - System operation
87B
87B-47
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - System operation
87B
87B-47V9 MR-372-J84-87B000$129.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
SYSTEM OPERATION
–The valves are activated approximately 1 minute after the vehicle has been running at a speed above 12 mph
(20 km/h).
–During driving, the valves emit signals every minute.
–The valves remain active for 15 minutes after the vehicle stops, then switch to standby mode.
–In standby mode, the valves emit signals only if they detect a pressure difference between two successive
measurements exceeding 68 mbar or if the pressure difference since last emitting exceeds 68 mbar (due to tyre
cooling).
–The tyres are considered to be cold when the vehicle speed has been zero for 1h 45 min.
–The minimum time for detection of a leak is approximately 15 minutes.
–The message Inflate tyres for motorway is displayed only if the vehicle travels at more than 102 mph (170 km/
h) (as an indication) for 3 minutes and the pressure on at least one of the tyres is 400 mbar less than the
recommended pressure at low speed. This message is inactive if the tyres are inflated to motorway pressure,
irrespective of the vehicle speed.
–Alert thresholds:
–over-inflation when cold = recommended pressure + 700 mbar,
–over-inflation when hot = recommended pressure + 850 mbar,
–under-inflation = recommended pressure - 400 mbar,
–serious under-inflation = recommended pressure - 600 mbar,
–imbalance = difference in pressure between the left-hand and right-hand wheels on the same axle greater
than 500 mbar.
–Information messages for the driver:
–Stop! Tyre puncture + STOP warning light + wheel concerned is highlighted on instrument panel display +
buzzer.
–Adjust tyre pressure + the wheel concerned is highlighted on instrument panel display.
–Inflate tyres for motorway + four wheels highlighted on instrument panel display.
–Tyre sensor fault + the wheel concerned is erased.
–Electronic fault + "Service" warning light + the four wheels concerned disappear from the instrument panel
display.
–No display of the tyre inflation pressure on the instrument panel on MEGANE II.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Configurations and programming
87B
87B-51
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Configurations and programming
87B
87B-51V9 MR-372-J84-87B000$215.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Configurations and programming
1/ GENERAL INFORMATION
The engine immobiliser protection system is controlled by a RENAULT card recognition system with random rolling
code.
A coded transponder chip (operating without a battery) independent of the remote control function is built into each
of the vehicle's RENAULT Cards.
The engine immobiliser is active a few seconds after the RENAULT Card is removed from the card reader. Its status
is shown by the flashing warning light on the instrument panel and by locking of the steering column lock.
To obtain the immobiliser code, see Technical Note 5037A, Code delivery procedure.
There are two programming methods: "Not connected" to the code server mode and "connected" to the code
server mode.
–In the "not connected" mode, the CLIP diagnostic tool supplies a programming key and the user enters the
immobiliser code.
–In the "connected" mode, the CLIP diagnostic tool automatically exchanges the programming key and the
immobiliser code.
IMPORTANT
If not all of the Renault cards are available, reallocate all Renault cards later. Cards not inserted will no longer be
allocated to this vehicle.
IMPORTANT
In "not connected" mode, once the tool has issued the programming key, the user has a limited amount of time
in which to enter the immobiliser code.
If this time expires, the CLIP diagnostic tool displays the message "Time expired. Restart the procedure.
Note:
When only the UCH is replaced, there is no operation to perform on the injection computer or the steering column
lock, they retain the same immobiliser code.
IMPORTANT
Once a part is programmed with a code, it is allocated to the vehicle; the code cannot be deleted and the part
cannot be reprogrammed with another code. The programmed code cannot be erased.
IMPORTANT
In "connected" mode, the exchange of the programming key and the entry of the immobiliser code is done
automatically.
If the connection parameters are not met, "connected" mode switches automatically to "not connected" mode.
MR-372-J84-87B000$215.mif

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Configurations and programming
87B
87B-53
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Configurations and programming
87B
87B-53V9 MR-372-J84-87B000$215.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
UCH programming procedure
–Run the Multiplex network test.
–Switch on the side lights.
–Establish dialogue with the UCH.
–Select the menu repair mode.
–Select the menu secure programming.
–Select line SC004 Program UCH.
Follow the instructions on the CLIP diagnostic tool.
In "not connected" mode, when the CLIP diagnostic tool displays the programming key, make a note of this key
and the VIN.
To obtain the immobiliser code, see Technical Note 5037A, Code delivery procedure.
Operations to be carried out after programming the UCH
●Enter the vehicle VIN in the computer using the command VP004 Enter VIN.
●After programming the UCH, allocate all of the cards using command SC006 Card allocation.
●Configure the equipment as present or not present on the vehicle using the commands
(see Configuration and programming). IMPORTANT
In "not connected" mode, the programming key can only be used for a limited amount of time, as indicated by
the CLIP diagnostic tool. After this time, the programming key and associated immobiliser code are no longer
valid. The operation must be restarted from the beginning.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Configurations and programming
87B
87B-61
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Configurations and programming
87B
87B-61V9 MR-372-J84-87B000$215.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
–Double input: on vehicles manufactured after 10/01/2005.
1Rear left-hand door
2Rear right-hand door
7/ PROCEDURE FOR CONFIGURING PROTECTION AND SWITCHING UNIT TYPE (CF135)
This configuration is only available with a UCH Vdiag 4F or 50.
This procedure will enable certain functions of the UCH computer to be configured to differentiate between a vehicle
fitted with a phase 1 electronic layout and a vehicle fitted with a phase 2 electronic layout.
–Click on Repair mode and in the Configuration writing menu,
–confirm the line CF135 Protection and Switching Unit computer type,
–follow the procedure and enter the following data:
–CF135 UPC computer type (SIEMENS Vdiag 44 or OTHER),
–CF114 Body type (phase 1 or phase 2),
–CF112 Headlight washers on vehicle (WITH or WITHOUT): only if UCH Vdiag 50.
–confirm, follow the procedure and enter the following data:
–CF085 Valet card function (WITH or WITHOUT) Important: the Valet function is only available on vehicles for the
MEXICAN market (this configuration is only available if the vehicle is fitted with a UPC Vdiag 44): only if UCH
Vdiag 50.
–confirm and follow the procedure,
–a screen prompts the user to verify that the specifications configured are those for the vehicle,
–confirm and follow the procedure.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Configurations and programming
87B
87B-62
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Configurations and programming
87B
87B-62V9 MR-372-J84-87B000$215.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
8/ UCH TYPE CONFIGURATION PROCEDURE (SC008)
8.1 Vdiag 44, 48
This procedure will enable the UCH to be configured in relation to the vehicle to provide optimum running.
–Click on the Repair mode and in the Programming menu,
–confirm line SC008 UCH type,
–follow the procedure and enter the following data:
–CF097 Vehicle type (3-door/4-door/5-door/cabriolet/extended MPV/MPV/Estate),
–confirm, follow the procedure and enter the following data:
–CF010 Hands-free function (WITH or WITHOUT),
–CF023 Tyre pressure monitoring system function (WITH or WITHOUT),
–CF057 Type of heating resistors (NONE, 1000 W, or 1800 W),
–CF019 Type of air conditioning (HEATING, AUTOMATIC, MANUAL),
–CF027 Type of windscreen (TINTED, HEAT INSULATING),
–CF035 Rain/light sensor (WITH or WITHOUT),
–CF014 Daytime running lights (WITH or WITHOUT),
–CF022 Factory fitted perimeter protection (WITH or WITHOUT): function only available on vehicles for the
Mexican market,
–CF173 One-touch window(s)/Sunroof (WITH or WITHOUT),
–confirm, follow the procedure and enter the following data:
–CF036 Selective opening of the opening elements (WITH or WITHOUT) Only if CF010 = WITHOUT
–confirm, follow the procedure and enter the following data:
–CF085 Valet card function (WITH or WITHOUT) Function only available in Mexico,
–(This status will only be available if the following conditions are met: CF036 Selective opening of opening
elements = WITH),
–check that the options configured are those desired and finish.