2007 RENAULT SCENIC Electrical Equipment - Xenon Bulbs Workshop Manual

8Electrical equipment
V2 MR-372-J84-80C000$TOC.mif
V2
80C
"The repair procedures given by the manufacturer in this document are based on the
technical specifications current when it was prepared.
The procedures may be modified as a result of changes introduced by the
manufacturer in the production of the various component units and accessories from
which his vehicles are constructed."
V2
All rights reserved by Renault s.a.s.
Edition Anglaise
Copying or translating, in part or in full, of this document or use of the service part
reference numbering system is forbidden without the prior written authority of
Renault s.a.s.
© Renault s.a.s. 2007
XENON BULBS
Program No.: V010
Vdiag No.: 05
Fault finding – Introduction 80C - 2
Fault finding – System operation 80C - 6
Fault finding – Component replacement 80C - 9
Fault finding – Configurations and programming 80C - 10
Fault finding – Fault summary table 80C - 13
Fault finding – Interpretation of faults 80C - 14
Fault finding – Conformity check 80C - 26
Fault finding – Interpretation of statuses 80C - 29
Fault finding – Parameter summary table 80C - 30
Fault finding – Interpretation of parameters 80C - 31
Fault finding – Customer complaints 80C - 34
Fault finding – Fault finding charts 80C - 35

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 -3V2 MR-372-J84-80C000$010.mif
XENON BULBS
Fault finding – Introduction80C
Program No.: V010
Vdiag No.: 05
Faults
Faults are classed as either present or stored (having appeared in a certain situation and then disappeared, or being
still present but not diagnosed in the current situation).
The present or stored status of faults should be taken into consideration when the diagnostic tool is switched on
following + after ignition feed being activated (without any system components being active).
For a present fault, apply the procedure described in the Interpretation of faults section.
For a stored fault, note the faults displayed and apply the instructions in the Notes section.
If the fault is confirmed when the notes are applied, the fault is present. Deal with the fault.
If the fault is not confirmed, check:
–The electric lines on which there is a fault;
–The connectors on those lines (corrosion, bent pins, etc.);
–The resistance of the faulty component;
–The condition of the wires (insulation melted or split, chafing, etc.).
Conformity check
The aim of the conformity check is to check statuses and parameters that do not produce a fault display on the
diagnostic tool when they are inconsistent. Therefore, this stage is used to:
–perform fault finding on faults that do not have a fault display, and which may correspond to a customer complaint.
–check that the system is operating correctly and that there is no risk of a fault recurring after repairs.
This section features the fault finding procedures for statuses and parameters, and the conditions for checking them.
If a status is not behaving normally or a parameter is outside the permitted tolerance values, consult the
corresponding fault finding page.
Customer complaints - Fault finding chart
If the diagnostic tool check is correct, but the customer complaint is still present, it should be dealt with according
to the customer complaint.
Asummary of t he overall procedure t o f ollow is provided on the following page in the form of a flow cha rt.

80C -4V2 MR-372-J84-80C000$010.mif
XENON BULBS
Fault finding – Introduction80C
Program No.: V010
Vdiag No.: 05
4. FAULT FINDING PROCEDURE
Check the battery charge and
the condition of the fuses
Print the system fault finding log
(available on CLIP and in the
Workshop Repair Manual
or Technical Note)
Connect CLIP
See ALP 1
Read the faults
Deal with faults found
Deal with stored faults
Conformity check
Use fault finding charts (ALPs)
Is there
communication
with UCH?
Are faults
present?
The cause is
still present
Is the cause
still present?Is the cause
still present?
Contact the Techline with the
completed fault finding log
No
NoNo
No No
Yes
Yes
YesFault
solvedFault
solved Fault
solved

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XENON BULBS
Fault finding – Introduction80C
Program No.: V010
Vdiag No.: 05
5. FAULT FINDING LOG
You will always be asked for this log:
–when requesting technical assistance from Techline,
–for approval requests when replacing parts for which approval is mandatory,
–to be attached to monitored parts for which reimbursement is requested. The log is needed for warranty
reimbursement, and enables better analysis of the parts removed.
6. SAFETY INSTRUCTIONS
All work on components requires that the safety rules be obeyed to prevent damage or injury:
–Check the battery voltage to avoid incorrect operation of computer functions.
–Use the appropriate tools.
–Do not touch the discharge bulbs.
–Never work on the discharge bulb system while it is in operation: the voltage is 20,000 V or more. IMPORTANTIMPORTANT
All faults involving a complex system call for thorough diagnostics with the appropriate tools.
The FAULT FINDING LOG, which should be completed during the fault finding procedure,
ensures a record is kept of the procedure carried out. It is an essential item for communication
with the manufacturer.
IT IS THEREFORE OBLIGATORY TO FILL A FAULT FINDING LOG WHENEVER
THE TECHLINE OR THE WARRANTY RETURNS DEPARTMENT REQUESTS IT.

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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

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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