Defecte Xenon

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Electrical equipment

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"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 fromwhich his vehicles are constructed."

MARCH 2006

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 partreference numbering system is forbidden without the prior written authority of

Renault s.a.s.

© Renault s.a.s. 2006

XENON BULBS

Program No.: V010 - Vdiag No.: 05

EDITION 4

Fault finding - Introduction 80C - 1

Fault finding - System operation 80C - 7

Fault finding - Component replacement 80C - 9

Fault finding - Allocation of computer tracks 80C - 10

Fault finding - Configurations and programming 80C - 11

Fault finding - Summary table of faults 80C - 14

Fault finding - Interpretation of faults 80C - 15

Fault finding - Conformity check 80C - 26Fault finding - Interpretation of statuses 80C - 28

Fault finding - Parameter summary table 80C - 29

Fault finding - Interpretation of parameters 80C - 30

Fault finding - Customer complaints 80C - 33

Fault finding - Fault finding charts 80C - 34

80C



XENON BULBS

Fault finding - Introduction 80C

80C-1

180CProgram no.: V010

VDIAG No.: 05

XENON BULBS

Fault finding - Introduction

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 manual):

– Assisted fault finding (integrated into the diagnostic tool), Dialogys.

Wiring Diagrams:

– Visu-Schéma (CD-ROM), paper version.

Diagnostic tools type:

– CLIP + CAN probe

Type of special tooling required:

Vehicle(s): Mégane Scénic

Function concerned: Xenon lights

Name of computer: Xenon light computer

Program no.: V010

VDIAG No: 05

Special tooling required

Multimeter

CLIP + CAN sensor (Elé. 1674)

Lampes au Xénon J 84

Edition 4



XENON BULBS


80C-2

Program no.: V010

VDIAG No.: 05

3. RECAP

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:

– vehicle card in card reader (scenario 1: keyless vehicle, entry level model, no 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 desired operations.

To cut off + after ignition, proceed as follows:

– disconnect the diagnostic tool,

– Press the Start button twice briefly (less then 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.

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 used after the

+ after ignition feed is switched on (without acting on the system components).

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 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 cut, 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 phase is used:

– to perform fault finding on faults that do not have a fault display, and which may correspond to a customer complaint.

– to 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 persists, it should be dealt with according to the

customer complaint.

A summary of the overall procedure to follow is provided on the following page in the form

of a flow chart.


Edition 4



XENON BULBS


80C-3

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

Dialogue with

Electronic Control

Unit?

no

yes

Read the faults

noFaults present

yes

Deal with present faults

Deal with stored faults

noThe cause is still

present

Fault

solved

yes

See Fault Finding Chart 1

Conformity check


present

Fault

solved

Use fault finding charts (ALPs)


present

Fault

solved

Contact the Techline with the

completed fault finding log


Edition 4



XENON BULBS


80C-4

Program no.: V010

VDIAG No.: 05

5. FAULT FINDING LOG

You will always be asked for this report:

– when requesting technical assistance from the Techline,

– for approval requests when replacing parts for which approval is obligatory,

– to be enclosed when returning monitored parts on request. The log is needed for warranty compensation, andenables better analysis of the parts removed.

6. SAFETY ADVICE

All work on components requires that the safety rules be obeyed to prevent damage or injury: – Make sure the battery is properly charged to avoid damaging the computers with a low load.

– Use the appropriate tools.

– Do not touch the xenon bulbs.

– Never work on the xenon light system while it is on: the voltage is 20,000 V or more.

WARNING!

IMPORTANT

Any fault on a complex system requires thorough fault finding with the appropriate tools. The

FAULT FINDING LOG, which should be completed during the procedure, enables you to keep

track of the procedure which is carried out. It is an essential item for communication with the

manufacturer.

IT IS THEREFORE MANDATORY TO FILL OUT A FAULT FINDING LOG EACH TIME FAULT FINDING IS

CARRIED OUT.


Edition 4



List of monitored parts: Computer

FAULT FINDING LOGSystem: Xenon lights

Page 1/2

q Administrative identification

Date 2 0

Log completed by

VIN

Engine

Diagnostic tool CLIP

Update version

q Customer complaint

1079 No automatic adjustment

of the dipped headlights1081 Erratic automatic

adjustment1082 The dipped headlights do

not switch on

1080 The dipped headlights

do not switch off 1083 The dipped headlights

come on intermittently1084 The headlight range is too

weak

Other Your comments

q Conditions under which the customer complaint occurs

005 While driving 011 When ignition is switched on 009 Sudden fault

003 When stationary 004 Intermittently 999 When switching on the

main beam headlights

Other Your comments

q Documentation used in fault finding

Fault finding procedure used

Type of diagnostic manual: Workshop Repair Manual Technical Note: Assisted fault finding

Fault finding manual no.:

Wiring diagram used

Wiring Diagram Technical Note No.:

Other documentation

Title and/or part number:

FD 19

Fault finding log

page to print or photocopy - page to print or photocopy - page to print or photocopy



To be read with the Diagnostic tool (Identification screen):

FAULT FINDING LOGSystem: Xenon lights

Page 2/2

q Computer identification and system parts replaced

Part 1 part no.

Part 2 part no.

Part 3 part no.

Part 4 part no.

Part 5 part no.

Computer part no.

Supplier no.

Program no.

Software version

Calibration no.VDIAG

q Faults found with the diagnostic tool

Fault no. Present Stored Fault name Specification

q Conditions under which fault occurs

Status or parameter no. Parameter name Value Unit

q System-specific information

Description:

q Additional information

What factors led you to replace the

computer?

What other parts were replaced?

Other faulty functions?

Please specify:

FD 19

Fault finding log

page to print or photocopy - page to print or photocopy - page to print or photocopy



XENON BULBS

Fault finding - System operation 80C

80C-7

Program no.: V010

VDIAG No.: 05 Fault finding - System operation

1 - XENON LIGHT SYSTEM COMPONENTS

The system consists of the following components:

– Front vehicle level sensor (the xenon light computer is built into this sensor).

– Rear vehicle level sensor. – Right and left-hand headlight adjustment motor.

– Bulb high-voltage power unit (ballast).

– Xenon lights.

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 lights.

When the bulbs come on, the adjustment motor moves through three positions: low, high, initial.

This is its intialisation.

If the vehicle is travelling faster than 6 mph (10 km/h) when the bulbs come on, there is no intialisation.

The computer manages various signals to adjust the amount of light:

– Vehicle speed: signal from 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 car'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 thelow position and then the initial position.

This initialises the system.


Edition 4



XENON BULBS

Fault finding - System operation 80C

80C-8

Program no.: V010

VDIAG No.: 05

3 - SYSTEM CONFIGURATION/CALIBRATION

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 lights 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:

– J84 (MPV 5 seats) – R84 (MPV 7 seats LWB)

– SUV84 (MPV 4x4)

– Exit fault finding mode.

– Switch off the ignition.

– Lock the doors with 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, no variation in attitude (no door rattling).

– Driver aboard.

– Fuel tank full.

Once computer calibration has been performed, check conformity of the light beam.If it is incorrect, adjust the headlights manually.

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 intialisation when the lights are turned on.


Edition 4



XENON BULBS

Fault finding - Component replacement 80C

80C-9

Program no.: V010

VDIAG No.: 05 Fault finding - Component replacement

The system's xenon lights require a voltage of 20,000 V when switched on, then run on 85 V AC.

The battery must without fail be disconnected before any work on the headlights, bulbs, and high-voltage headlight

power transformer units.

Refer to MR 370, 80C - Xenon lights, Xenon light computer: Removal - Refitting for the Removal - Refitting

procedure for the components of the system.

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 programmed using command CF001 each time the front or rear level sensor is replaced (see

Configuration and programming).

The following procedure should be applied before adjusting the beam height:

– check that there are no faults

– configure the vehicle type using command CF003 (see Configuration and programming)

– program the computer using command CF001 (see Configuration and programming)

Then manually adjust the headlight beam, see MR 370, 80C - Xenon lights, Xenon headlights: Adjustment.


Edition 4



XENON BULBS

Fault finding - Allocation of computer tracks 80C

80C-10

Program no.: V010

VDIAG No.: 05 Fault finding - Allocation of computer tracks

Xenon light computer 8-track black connector

Track Description

1 Earth

2 Timed +12 V power supply

3 Vehicle rear height signal from rear

level sensor

4 Vehicle speed signal from ABS

computer.

5 Fault finding signal

6 Dipped headlights signal by Protection

and Switching Unit (UPC)

7 Right-hand and left-hand headlightadjustment motor control signal

8 Rear level sensor + power supply from

xenon light computer


Edition 4



XENON BULBS

Fault finding - Configurations and programming 80C

80C-11

Program no.: V010

VDIAG No.: 05 Fault finding - Configurations and programming

CF001

COMPUTER CALIBRATION

NOTES

This 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 straight, engine off, driver behind the wheel and dipped headlights on.

– Turn on the ignition and enter xenon lights fault finding mode.

– Select Configuration mode.

– Run configuration CF001.

– When calibration is complete, exit fault finding mode.

– Lock and unlock the doors with the card.

– The computer has now been calibrated.

– Check status LC010, which should indicate Completed.

LC010


Status 1: Not completed

Status 2: Completed

The configuration LC010 reading can have one 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.

AFTER REPAIR

Turn on dipped-beam headlights.

Check that the system performs its intialisation to verify that the computer has no faults.

Adjust the headlights manually.


Edition 4



XENON BULBS


80C-12

Program no.: V010

VDIAG No.: 05

CF003

VEHICLE TYPE

NOTES This configuration is performed after replacing the computer.

Configuration procedure:

– Connect the CLIP tool and turn on the ignition.

– Enter Xenon lights 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 Xenon lights fault finding mode and read LC001 Vehicle type.

– See that the vehicle type has been properly identified by reading configuration LC001.

LC001

VEHICLE TYPE

Status 1: Error

Status 2: J84Status 3: R84

Status 4: SUV 84

Configuration LC001 can have one of four statuses:

– Error: Configuration CF003 Vehicle type, has been complete, but the vehicle type programmed does not

match the vehicle diagnosed.

– J84: Configuration correct: the vehicle type is Scénic.

– R84: Configuration correct: the vehicle type is the LWB Scénic.

– SUV84: Configuration correct: the vehicle type is Scénic 4x4.

AFTER REPAIR Turn on dipped-beam headlights.Check that the system performs its intialisation to verify that the computer has no faults.



Edition 4



XENON BULBS


80C-13

Program no.: V010

VDIAG No.: 05

AC012

ACTUATOR HIGH AND LOW POSITION CHECK

NOTES Before 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 light 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 xenon light computer

Left-hand adjustment motor track 2 track 7 of the xenon light computer

If necessary, repair the connections.

Check the condition of the adjustment motors and xenon light computer connections.

Repair if necessary.

If the command still fails to move the adjustment motors, replace them.

AFTER REPAIR Turn on dipped-beam headlights.Check that the system performs its intialisation to verify that the computer has no faults.



Edition 4



XENON BULBS

Fault finding - Summary table of faults 80C

80C-14

Program no.: V010

VDIAG No.: 05 Fault finding - Summary table of faults

List of faults and related DTCs:

Tool fault Associated DTC Diagnostic tool title

DF001 9003 Computer

DF008 9002 Front height sensor circuit

DF009 9001 Rear height sensor circuit

DF018 9004 Actuators


Edition 4



XENON BULBS

Fault finding - Interpretation of faults 80C

80C-15

Program no.: V010

VDIAG No.: 05 Fault finding - Interpretation of faults

DF001

PRESENT

COMPUTER

C.O. : Dipped headlights signal circuit open

1.DEF : Speed signal above maximum threshold

2.DEF : Speed signal open circuit or short circuit to +12 V3.DEF : Speed signal short circuit to earth detected while driving

4.DEF : Speed greater than 0 during initialisation

5.DEF : Computer not calibrated

6.DEF : Incorrect vehicle configuration

7.DEF : Internal electronic fault.

8.DEF : Actuator control line open circuit

9.DEF : Actuator control line short circuit to earth10.DEF : Actuator control line short circuit to +12 V

11.DEF : Battery voltage too low

NOTES The fault is declared present after the dipped headlights are switched on, or during a

road test.

C.O. NOTES Priority when dealing with a number of faults

Replace if necessary.

Carry out fault finding on the UCH to make sure that the stalk works properly.

Check the condition of the contacts and make sure that the xenon light computer is properly connected.

Check the continuity and absence of interference resistance in the following connection:Black 6-track Protection and Switching Unit connector track 5 Track 6 of the xenon light computer

If the fault is still present after these checks, replace the dipped headlights control stalk.

1.DEF NOTES None.

Make sure that parameter PR019 Vehicle speed is accurate, and that the value lies within the permissible

range.

Check the ABS circuit for faults. If any faults are present, deal with them first.

Then check the continuity and absence of interference resistance between: ABS computer track 23 Xenon light computer track 4

AFTER REPAIR

Turn on the dipped headlights and check that intialisation is performed.

If there is no intialisation, deal with the system faults. Adjust the headlights manually after each computer calibration.

Perform a road test, then check with the diagnostic tool.


Edition 4



XENON BULBS


80C-16

Program no.: V010

VDIAG No.: 05

DF001

PRESENT

CONTINUED 1

2.DEF NOTES Only take this fault into consideration if the vehicle's power

supply is + after ignition.

Check the continuity and absence of interference resistance between: ABS computer track 23 Xenon light computer track 4

Check the condition of the computer connections and repair if necessary.

Then check the insulation against +12 V on the connection below.

3.DEF NOTES None.

Check the insulation against +12 V of the connection between:

ABS computer track 23 Xenon light computer track 4

Check the condition of the computer connections and repair if necessary.

4.DEF NOTES None.

Make sure that parameter PR019 Vehicle speed is consistent.

Check the ABS circuit for faults. If any faults are present, deal with them first.

Then check the continuity and absence of interference resistance between:

ABS computer track 23 Xenon light computer track 4

5.DEF NOTES This fault reappears every time configuration CF003 Vehicle

type is run.

If the computer has not been calibrated, it indicates fault DF001 Computer fault.

In this case, consult command CF001 Computer calibration.

If the fault persists, contact the Techline.

AFTER REPAIR





Edition 4



XENON BULBS


80C-17

Program no.: V010

VDIAG No.: 05

DF001

PRESENT

CONTINUED 2

6.DEF NOTES None.

If the vehicle configuration has not been done, the computer indicates fault DF001 Computer fault.

In this case, consult command CF003 Vehicle type, and configure the computer for the type of vehicleinvolved.

If the fault is still present, contact the Techline.

7.DEF NOTES Deal with other system faults first.

If fault DF001 appears with Internal computer error status, contact the Techline.

8.DEF NOTES None.

Check the continuity and absence of interference resistance between:

Right-hand headlight adjustment motor track 2 Xenon light computer track 7Left-hand headlight adjustment motor track 2 Xenon light computer track 7

Check the condition of the connections as well as the xenon light computer and adjustment motor connections.


AFTER REPAIR





Edition 4



XENON BULBS


80C-18

Program no.: V010

VDIAG No.: 05

DF001

PRESENT

CONTINUED 3

9.DEF NOTES None.

Check the insulation against earth on the following connection:

Right-hand headlight adjustment motor track 2 Xenon light computer track 7Left-hand headlight adjustment motor track 2 Xenon light computer track 7



10.DEF NOTES None.

Check the insulation against +12 V of the connection between:

Right-hand headlight adjustment motor Track 2 Xenon light computer track 7

Left-hand headlight adjustment motor Track 2 Xenon light computer track 7



11.DEF NOTES None.

If the battery voltage is too low (< 10 V), check the condition of the battery and recharge or replace if necessary.

Then check the vehicle's charge circuit.

AFTER REPAIR





Edition 4



XENON BULBS


80C-19

Program no.: V010

VDIAG No.: 05

DF008

PRESENTOR

STORED

FRONT HEIGHT SENSOR CIRCUIT

1.DEF: Signal outside upper limit

2.DEF: Signal outside lower limit

3.DEF: Signal outside limit on initialisation4.DEF: Internal electronic fault.

NOTES The fault is declared present after a road test.

1.DEF NOTES None.

Check the front height sensor connections.


Check the condition of the sensor linkage rod.

If it is damaged, the signal will be outside the limits.

Check the condition of the front sensor connection harness (pinching, breaks, etc.).


2.DEF NOTES None.



Check the condition of the sensor linkage rod.


Check the condition of the front sensor connection harness (pinching, breaks, etc.).


AFTER REPAIR





Edition 4



XENON BULBS


80C-20

Program no.: V010

VDIAG No.: 05

DF008

PRESENT

CONTINUED 1

3.DEF NOTES None.


Repair if necessary.Check the condition of the sensor linkage rod.


Check the condition of the front sensor connection harness (pinching, breaks, etc.).Repair if necessary.

4.DEF NOTES None.

If fault DF008 appears with the Internal electronic fault status, contact the Techline.

AFTER REPAIR





Edition 4



XENON BULBS


80C-21

Program no.: V010

VDIAG No.: 05

DF009

PRESENTOR

STORED

REAR HEIGHT SENSOR CIRCUIT

CC.0 : Short circuit to earth

CC.1 : Short circuit to +12 V

1.DEF: Signal absent2.DEF: Signal outside upper limit

3.DEF: Signal outside lower limit

4.DEF: Signal outside limit on initialisation

5.DEF: Inconsistent signal

NOTES The fault is declared present after a road test.

CC.0 NOTES None.

Check the condition of the contacts and the xenon light computer and rear height sensor connections.

Check the continuity and insulation against earth between:

Track 6 of the rear level sensor connector Track 3 of the xenon light computer connector


Then check the insulation of this connection against earth.


CC.1 NOTES None.

Check the condition of the contacts and the xenon light computer and rear level sensor connections.

Check the continuity and insulation against +12 V between:



Then check the insulation of this connection against earth.


AFTER REPAIR





Edition 4



XENON BULBS


80C-22

Program no.: V010

VDIAG No.: 05

DF009

CONTINUED 1

1.DEF NOTES None.


Check the continuity and absence of interference resistance between:Track 6 of the rear level sensor connector Track 3 of the xenon light computer connector


Track 1 of the rear level sensor connector Vehicle earthIf the fault is still present, contact the Techline.

2.DEF NOTES None.

Check the proper installation and condition of the rear sensor linkage.




Track 6 of the rear level sensor connector Track 3 of the xenon light computer connector Track 5 of the rear level sensor connector Track 8 of the xenon light computer connector

Next check the insulation of these connections against earth, and then against +12 V.


AFTER REPAIR





Edition 4



XENON BULBS


80C-23

Program no.: V010

VDIAG No.: 05

DF009

CONTINUED 2

3.DEF NOTES None.


Replace if necessary.Check the condition of the contacts and the xenon light computer and rear level sensor connections.





4.DEF NOTES None.



Check the condition of the contacts and the xenon light computer and rear level sensor connections.Check the continuity and absence of interference resistance between:





AFTER REPAIR





Edition 4



XENON BULBS


80C-24

Program no.: V010

VDIAG No.: 05

DF009

CONTINUED 3

5.DEF NOTES None.

Check the condition of the rear level sensor linkage.

Replace if necessary.Check the condition of the contacts and the xenon light computer and rear level sensor connections.





AFTER REPAIR





Edition 4



XENON BULBS


80C-25

Program no.: V010

VDIAG No.: 05

DF018

PRESENTOR

STORED

ACTUATORS

1.DEF: Actuator motor fault

1.DEF NOTES

Conditions for applying the fault finding procedure to

stored faults:

If the fault appears as present after:

– the fault has been cleared – the ignition is switched off and on again, then the dipped

headlights are switched on.

Park the vehicle facing a wall. Switch off the ignition. Switch on the ignition and turn on the dipped headlights.

Run command AC012 Check actuator high and low positions to make sure that the actuators are working

properly.

Check the headlamp unit which does not initialise by doing the following.

Check the condition of the computer connections and the actuator connections in the headlights.


computer connector track 7 track 2 of the actuator connector in the right-hand

headlight

computer connector track 7 track 2 of the actuator connector in the left-hand

headlightTrack 1 of the actuator connector vehicle earth

Track 3 of the actuator connector + after ignition

If one or more of these checks fail, replace the defective adjustment motor(s).

AFTER REPAIR





Edition 4



XENON BULBS

Fault finding - Conformity check 80C

80C-26

Program no.: V010

VDIAG No.: 05 Fault finding - Conformity check

LIGHTING POSITION SUB-FUNCTION

NOTES Only check the conformity after a complete check with the diagnostic tool.

Prerequisite: dipped headlights on.

Order

Parameter or

Status

checked or Action

Function Display and Notes Fault finding

1

PR017 Front height 8° < PR117 < 115.5°If the value is incorrect,

consult the interpretation

of faults DF008 Front

height sensor circuit

and DF009 Rear heightsensor circuit

PR018 Rear height 9° < PR018 < 110°

2 PR020 Actuator positions15 steps < PR020

< 520 steps

If the value is incorrect,

see the interpretation of

fault DF018 Actuator

and run command

AC012 Check actuator

high and low position,

to see if they work

properly

3

PR032Front reference

height 23° < PR032 < 85.6°


see the interpretation of faults DF008 Front

height sensor circuit

and DF009 Rear height

sensor circuit status

4.DEF

PR033Rear reference

height23° < PR032 < 89.5°

4 PR019 Vehicle speed0 mph < PR019

< 132 mph (220 km/h)



fault DF001 Computer


Edition 4



XENON BULBS

Fault finding - Conformity check 80C

80C-27

Program no.: V010

VDIAG No.: 05

LIGHTING CONTROL SUB-FUNCTION

LIGHTING MANAGEMENT SUB-FUNCTION

NOTES Only check the conformity after a complete check with the diagnostic tool.

Prerequisite: dipped headlights on.

Order

Parameter or

Status

checked or Action


1 PR020 Actuator positions 15 steps < PR020< 520 steps



fault DF018 Actuator

and run commandAC012 Check actuator

high and low position to

see if they work

properly

Order

Parameter or

Status

checked or Action


1 ET001 Computer calibration

Done Normal operating mode

Not doneRun CF001 Computer

calibration


Edition 4



XENON BULBS

Fault finding - Interpretation of statuses 80C

80C-28

Program no.: V010

VDIAG No.: 05 Fault finding - Interpretation of statuses

ET001


Status 1: Not completed

Status 2: Completed

NOTES

There must be no present or stored faults.

Special notes: The vehicle must be stationary, parked on a level surface with a driver

behind the wheel and the fuel tank full.

Not completed Status ET001 should be Not completed if the computer has not yet been calibrated

and the vehicle reference heights have not been programmed.

If status ET001 remains stuck at Not completed, carry out fault finding on the entire

system as a component may be defective.

Done Status ET001 should be Completed if the computer has been calibrated and the

vehicle reference heights have been programmed.

This is normal operation status.

AFTER REPAIR Repeat the fault finding procedure on the system.Clear the fault memory.

Deal with any other faults.


Edition 4



XENON BULBS

Fault finding - Parameter summary table 80C

80C-29

Program no.: V010

VDIAG No.: 05 Fault finding - Parameter summary table

Tool parameter Diagnostic tool title

PR020 Actuator positions

PR032 Front reference height

PR017 Front height

PR033 Rear reference height

PR018 Rear height

PR019 Vehicle speed


Edition 4



XENON BULBS

Fault finding - Interpretation of parameters 80C

80C-30

Program no.: V010

VDIAG No.: 05 Fault finding - Interpretation of parameters

PR017and

PR018

FRONT HEIGHT

REAR HEIGHT

NOTES There must be no present or stored faults.

Carry out fault finding only if the values of this parameter are inconsistent.

If the values indicated by the vehicle do not match those of the conformity check, see faults DF008 Frontheight sensor circuit and DF009 Rear height sensor circuit, and follow the fault finding procedure.




Edition 4



XENON BULBS


80C-31

Program no.: V010

VDIAG No.: 05

PR019

VEHICLE SPEED


Run fault finding only if the values of this parameter are inconsistent.

If the values indicated by the vehicle do not match those of the conformity check, see fault DF001 Computer 3.DEF and 4.DEF and apply the fault finding procedure.




Edition 4



XENON BULBS


80C-32

Program no.: V010

VDIAG No.: 05

Note: Even though a height sensor or actuator is defective, the value of parameter PR020 will always be determined

by the computer.

Parameter PR020 will therefore always be within a range of permissible values even if one of the components is

defective.

PR020

ACTUATOR POSITIONS


Carry out fault finding only if the values of this parameter are inconsistent.

If the values indicated by the vehicle do not match those of the conformity check, refer to fault DF018

Actuators, and follow the diagnostic procedure.

To find out if an actuator is malfunctioning, see command AC012 Check actuator high and low position.




Edition 4



XENON BULBS

Fault finding - Customer complaints 80C

80C-33

Program no.: V010

VDIAG No.: 05 Fault finding - Customer complaints

NOTES Only check the customer complaint after performing a complete check with the

diagnostic tool.

NO COMMUNICATION WITH THE COMPUTER ALP 1

NO HEIGHT ADJUSTMENT ON EITHER OR BOTH HEADLIGHTS,

REGARDLESS OF VEHICLE LOADALP 2

DIPPED HEADLIGHT BEAMS TOO HIGH ALP 3

THE LEFT AND RIGHT-HAND DIPPED BEAM HEADLIGHTS DO NOTLIGHT AT THE SAME HEIGHT

ALP 4


Edition 4



XENON BULBS

Fault finding - Fault finding charts 80C

80C-34

Program no.: V010

VDIAG No.: 05 Fault finding - Fault finding charts

ALP 1 No dialogue with the computer

NOTES Only check the customer complaint after performing a complete check with the

diagnostic tool.

Check fuse 1K (5A) of the passenger compartment fuse and relay box.

Replace it if necessary.

Turn on dipped-beam headlights.

If the bulbs light but the system does not perform intialisation and no communication is possible, perform the

following checks:

Remove the timed power supply 40A relay A located in the passenger compartment fuse and relay box.

Check the condition of the connections and repair if necessary.

Measure the following resistance values:

– Power circuit: Resistance between tracks 85 and 86 of the relay.

If the resistance is not 65 ΩΩΩΩ ±±±± 5 ΩΩΩΩ, replace relay A.

– Control circuit: Resistance between tracks 30 and 87A of the relay.

If the resistance is not approximately 1 ΩΩΩΩ, replace relay A.

Check the battery voltage and carry out the operations necessary to obtain a suitable voltage

(9.5 V < battery voltage < 14.4 V).

Check for the presence of:

a +12 V before ignition feed on track 16 of the diagnostic socket,

a +12 V after ignition feed on track 1 of the diagnostic socket,

earth on tracks 4 and 5 of the diagnostic socket.



AFTER REPAIR Turn on dipped-beam headlights.

If the system does not perform intialisation, deal with the system faults.


Edition 4



XENON BULBS


80C-35

Program no.: V010

VDIAG No.: 05

ALP 2No height adjustment on either or both headlights, regardless of

vehicle load

NOTES Only consult this customer complaint after a complete check with the diagnostic tool.

Confirm that intialisation is performed when the dipped headlights are switched on.

If it is not, the actuators or a circuit component may be defective.

Check the condition of fuse F1K (5A) located in the vehicle's glovebox.


Use command AC012 Check actuator high and low position to find out which headlight is faulty.

Check for mechanical blockage of the headlight (ball joint popped out, reflector stuck, actuator seized).

Make sure that the sensors are properly positioned and mounted on the body, and check the condition of the

linkage.

If all the checks described above fail to solve the problem, replace the faulty adjustment motor(s).

AFTER REPAIR Turn on dipped-beam headlights.

If the system does not perform intialisation, deal with the system faults.


Edition 4



XENON BULBS


80C-36

Program no.: V010

VDIAG No.: 05

ALP 3 Glare, or beam too high


Check that headlights are fitted correctly.

Check that the right-hand and left-hand headlights light at the same level.

If the headlights differ in height, adjust the headlights manually.

Check the condition of system mechanical components (sensor mounting, linkages).

Check whether the initial front and rear heights PR032 Reference front height and PR033 Reference rear

height are similar.

If there is a major difference between these two parameters, perform a computer calibration ( CF001 described

in the Configurations and Programming section).

Use actuator command AC012 Check actuator high and low position.

If the light beam moves: adjust the headlights manually.

If the light beam does not move:Check that the adjustment motors are actuated when the command is given (motor noise + vibration).

If the motors are actuated but the beam does not move, check the condition of the adjustment motor/

headlight coupling rods. Replace the faulty headlight(s).

AFTER REPAIR Carry out a check using the diagnostic tool.

Deal with any faults found.


Edition 4



XENON BULBS

Fault finding - Fault finding charts 80CProgram no.: V010

VDIAG No.: 05

ALP 4The left-hand and right-hand dipped headlight beams do not light

at the same height


Check that headlights are fitted correctly.

Check that the right-hand and left-hand headlights light at the same level.

If the headlights differ in height, adjust the headlights manually.

Check the condition of system mechanical components (sensor mounting, linkages).

Check whether the initial front and rear heights PR032 Reference front height and PR033 Reference rear

height are similar.

If there is a major difference between these two parameters, perform a computer calibration ( CF001 described

in the Configurations and Programming section).

Use actuator command AC012 Check actuator high and low position.

If the light beam moves: adjust the headlights manually.

If the light beam does not move:Check that the adjustment motors are actuated when the command is given (motor noise + vibration).

If the motors are actuated but the beam does not move, check the condition of the adjustment motor/

headlight coupling rods. Replace the faulty headlight(s).

Documents

Defecte Xenon