80C -2V2 MR-372-J84-80C000$010.mif
80C
Program No.: V010
Vdiag No.: 05
1. SCOPE OF THIS DOCUMENT
This document presents the fault finding procedure applicable to all computers with the following specifications:
2. PREREQUISITES FOR FAULT FINDING
Documentation type:
Fault finding procedures (this document):
–Assisted fault finding (integrated into the diagnostic tool), Dialogys.
Wiring Diagrams:
–Visu-Schéma (CD-ROM).
Type of diagnostic tools:
–CLIP + multiplex line sensor
Special tooling required
3. REMINDERS
Procedure
To run fault finding on the vehicle's computers, switch on the ignition in fault finding mode (forced + after ignition
feed).
Proceed as follows:
–Renault card in the card reader (keyless vehicle scenario 1, entry level, not hands-free and scenario 2, top of the
range, hands-free),
–press and hold Start button (longer than 5 seconds) with start-up conditions not fulfilled,
–connect the diagnostic tool and perform the required operations.
To cut off + after ignition feed, proceed as follows:
–disconnect the diagnostic tool,
–Press the start button twice briefly (less than 3 seconds),
–Check that the + after ignition feed has been cut off by checking that the computer warning lights on the instrument
panel have gone out. Vehicle(s): Scénic II, Laguna II ph1, Velsatis
ph1, Espace IV ph1
Function concerned: xenon bulbsName of computer: Xenon bulb computer
Program No.: V010
VDIAG No.: 05
Special tooling required
Diagnostic tool
Multimeter
CLIP + CAN probe (Elé. 1674)
LAD_V05_PRELI
XENON BULBS
Fault finding – Introduction
80C -6V2 MR-372-J84-80C000$020.mif
80C
Program No.: V010
Vdiag No.: 05
1. COMPONENTS OF THE XENON BULB SYSTEM
The system consists of the following components:
–Front vehicle level sensor (the xenon bulb computer is built into this sensor).
–Rear vehicle level sensor.
–Right and left-hand headlight adjustment motor.
–Bulb high-voltage power unit (ballast).
–Xenon bulbs.
The K line can be used for fault finding. The system is not multiplexed.
2. SYSTEM OPERATION
When the control lever is in position (dipped headlights), it sends a signal to the UCH. The UCH processes the signal
and, through the CAN network, asks the Protection and Switching Unit to turn on the xenon bulbs.
When the bulbs come on, the adjustment motor moves through three positions: low, high, initial.
This is its initialisation.
If the vehicle is travelling above 6 mph (10 km/h) when the bulbs come on, there is no initialisation.
The computer manages various signals to adjust the amount of light:
–Vehicle speed: Signal provided by the ABS computer. Above 18 mph (30 km/h), the adjustment motors raise
the bulbs to provide optimum lighting for the driver.
–Vehicle front and rear height: signals from the front and rear height sensors. These sensors track the angular motion
of the vehicle's body (deceleration, acceleration, vehicle loaded). The computer then controls the motors to adjust
the beam and provide optimum lighting.
–System initialisation:
When the vehicle is unlocked, even if the dipped headlights are off, the system moves the adjustment motors
to the low position and then the initial position.
This initialises the system.
XENON BULBS
Fault finding – System operation
80C -7V2 MR-372-J84-80C000$020.mif
XENON BULBS
Fault finding – System operation80C
Program No.: V010
Vdiag No.: 05
3. CONFIGURATION-CALIBRATION OF THE SYSTEM
To calibrate and configure a new computer on a vehicle, follow the configuration procedures in the following order.
a. Vehicle type (CF003)
This configuration activates the adjustment strategies designed for the body type.
The new strategies only take effect after the ignition is switched off and the doors are locked.
Perform configuration as follows:
–Enter the xenon bulbs fault finding mode.
–Make sure that the initial vehicle position indicated by the front and rear sensors is within the allowed range.
–Run configuration CF003 according to the vehicle type:
– Scénic II Strd* (5-seater MPV)
– Scenic II Long (7-seater extended MPV)
– Espace IV
– Velsatis
– Laguna II
–Exit fault finding mode.
–Switch off the ignition.
–Lock the doors using the card.
–The vehicle type has been programmed.
–After unlocking the doors, turn the ignition back on.
–See that the vehicle type has been properly identified by reading configuration LC001, Vehicle type.
b. Computer calibration (CF001)
This calibration must be performed when a system component is replaced (e.g. sensor, headlight etc.).
It enables the computer to store the vehicle's reference level.
To ensure proper configuration and calibration, follow this procedure:
–Check tyre pressure and adjust if faulty.
–Park the vehicle on a level surface under normal driving conditions (luggage compartment empty).
–Vehicle stopped, solid base (no door rattling).
–Driver on board.
–Fuel tank full.
Once computer calibration has been performed, check conformity of the light beam.
If it is incorrect, adjust the headlights manually.
80C -8V2 MR-372-J84-80C000$020.mif
XENON BULBS
Fault finding – System operation80C
Program No.: V010
Vdiag No.: 05
4. DEFECT MODE
If a system component is defective, no indicator lights up on the instrument panel.
The system then switches to defect mode.
If the computer detects a system fault, it sets the adjustment motors to the low or initial position.
If the computer detects a fault, there is no longer any initialisation when the lights are turned on.
* Strd: standard
80C -9V2 MR-372-J84-80C000$030.mif
80C
Program No.: V010
Vdiag No.: 05
The xenon bulbs fitted to the system require a voltage of 20,000 V when switched on, then run on 85 V AC.
You must always disconnect the battery before doing any work on the headlights, bulbs, and high-voltage headlight
power transformer units.
To follow the method of removal-refitting of the constituent components of the system, see MR 370 (Scenic II)
or MR 361 (Espace IV) or MR 353 (Velsatis), Mechanical systems, 80C - Xenon Bulbs, Xenon bulb computer:
Removal – Refitting or MR 339 (Laguna II), Mechanical systems, 80 – Headlights, Xenon headlights.
It is forbidden to supply a bulb if it is not installed in the headlight (danger that you might damage your eyes).
The computer must be calibrated using CF001computer calibration (see Configuration and programming) each
time a front or rear level sensor is replaced.
The following procedure should be applied before adjusting the headlight beam:
–check that there are no faults
–configure the vehicle type using command CF003 Vehicle type (see Configuration and programming)
–calibrate the computer using command CF001 (see Configuration and programming)
Next adjust the headlights manually, (see MR 370 (Scenic II) or MR 361 (Espace IV) or MR 353 (Velsatis),
Mechanical systems, 80C - Xenon bulbs, Xenon headlight: Adjustment or MR 339 (Laguna II), Mechanical
systems, 80 – Headlights, Xenon headlights).
XENON BULBS
Fault finding – Component replacement
80C-10V2 MR-372-J84-80C000$040.mif
80C
Program No.: V010
Vdiag No.: 05
AFTER REPAIRTurn on dipped-beam headlights.
Check that the system performs its initialisation to verify that the computer has no
faults.
Adjust the headlights manually.
CF001COMPUTER CALIBRATION
NOTESThis configuration enables the computer to store the vehicle's reference level.
Begin by configuring the vehicle type; then calibrate the vehicle level.
The vehicle must be stationary. Also, the front and rear sensor values must be within
the permissible range.
To calibrate the computer, proceed as follows:
–Check tyre pressure and adjust if faulty.
–Park the vehicle on a level horizontal surface.
–Make sure that the headlights have been properly adjusted manually.
–Position the vehicle with the wheels set straight ahead, engine switched off, driver behind the wheel and dipped
headlights on.
–Turn on the ignition and enter xenon bulbs fault finding mode.
–Select Configuration mode.
–Run configuration CF001.
–When calibration is complete, exit fault finding mode.
–Lock and unlock the vehicle doors with the card.
–The computer has now been calibrated.
–Check status LC010, which should indicate Completed.
LC010COMPUTER CALIBRATIONNot completed
Completed
The configuration reading LC010 can have either of two statuses:
–Not completed: The computer has not been calibrated, the vehicle's reference level is unknown, and the
maximum and minimum body height levels have not been programmed.
–Completed: The computer has been calibrated. Normal system operation. The sensor reference levels have
been programmed.
XENON BULBS
Fault finding – Configurations and programming
80C-11
AFTER REPAIRTurn on dipped-beam headlights.
Check that the system performs its initialisation to verify that the computer has no
faults.
Adjust the headlights manually.
V2 MR-372-J84-80C000$040.mif
XENON BULBS
Fault finding – Configurations and programming80C
Program No.: V010
Vdiag No.: 05
* Strd: standard
CF003VEHICLE TYPE
NOTESThis configuration is performed after replacing the computer.
Configuration procedure:
–Connect the CLIP tool and turn on the ignition.
–Enter Xenon bulbs fault finding mode.
–Select configuration CF003 Vehicle type.
–Select the type of vehicle.
–Confirm the configuration.
–Exit fault finding mode and switch off the ignition.
–Lock and unlock the vehicle doors with the card.
–Re-enter "Discharge bulbs" fault finding mode and read LC001 "Vehicle type".
–See that the vehicle type has been properly identified by reading configuration LC001.
LC001VEHICLE TYPE
Not defined
Scénic II Strd*
Scénic II long
Velsatis
Laguna II
Espace IV
Configuration LC001 can have one of six statuses:
–Not defined: Configuration CF003 Vehicle type, has been completed, but the vehicle type programmed does
not match the vehicle diagnosed.
–Scénic II Strd*: Configuration correct: the vehicle type is Scénic.
–Scénic II long: Configuration correct: the vehicle type is the extended Scénic.
–Velsatis: Configuration correct: the vehicle type is Velsatis.
–Laguna II: Configuration correct: the vehicle type is Laguna II.
–Espace IV: Configuration correct: the vehicle type is Espace IV.
80C-12
AFTER REPAIRTurn on dipped-beam headlights.
Check that the system performs its initialisation to verify that the computer has no
faults.
Adjust the headlights manually.
V2 MR-372-J84-80C000$040.mif
XENON BULBS
Fault finding – Configurations and programming80C
Program No.: V010
Vdiag No.: 05
AC012ACTUATOR HIGH AND LOW POSITION CHECK
NOTESBefore running this command, make sure that the vehicle level has been calibrated.
This command tests actuator control following a malfunction or customer complaint.
Use the CLIP tool to check whether the xenon bulb computer has any faults.
If fault DF018 Actuator is present, consult procedure for dealing with DF018.
If the actuators fail to move after the command is run, proceed as follows:
–Check the continuity and absence of interference resistance between:
Right-hand adjustment motor track 2 track 7 of the discharge bulb computer
Left-hand adjustment motor track 2 track 7 of the discharge bulb computer
If necessary, repair the connections.
Check the condition of the adjustment motors and xenon bulb computer connections.
Repair if necessary.
If the command still fails to move the adjustment motors, replace them.
LAD_V05_AC012