Page 21 of 38

80C-21V2 MR-372-J84-80C000$060.mif
XENON BULBS
Fault finding – Interpretation of faults80C
Program No.: V010
Vdiag No.: 05
AFTER REPAIRTurn on the dipped headlights and check that initialisation is performed.
If there is no initialisation, deal with the system faults.
Adjust the headlights manually after each computer calibration.
Carry out a road test followed by a check with the diagnostic tool.
DF009
PRESENT
OR STOREDREAR HEIGHT SENSOR CIRCUIT
CC.0: Short circuit to earth
CC.1: Short circuit to + 12 V
1.DEF: No signal
2.DEF : Signal outside upper limit
3.DEF: Signal outside lower limit.
4.DEF: Signal outside limit on initialisation
5.DEF: Inconsistent signal
NOTESThe fault is declared present after a road test.
CC.0
NOTESNone.
Check the condition of the contacts and connections of the xenon bulb computer and rear height sensor.
Check the continuity and insulation against earth between:
Track 6 of the rear level sensor connectorTrack 3 of the xenon bulb computer connector
Track 5 of the rear level sensor connectorTrack 8 of the xenon bulb computer connector
Then check the insulation of this connection against earth.
If the problem is still present, contact the Techline.
CC.1
NOTESNone.
Check the condition of the contacts and connections of the xenon bulb computer and rear level sensor.
Check the continuity and insulation against + 12 V between:
Track 6 of the rear level sensor connectorTrack 3 of the xenon bulb computer connector
Track 5 of the rear level sensor connectorTrack 8 of the xenon bulb computer connector
Then check the insulation of this connection against earth.
If the problem is still present, contact the Techline.
LAD_V05_DF009
Page 22 of 38

80C-22V2 MR-372-J84-80C000$060.mif
XENON BULBS
Fault finding – Interpretation of faults80C
Program No.: V010
Vdiag No.: 05
AFTER REPAIRTurn on the dipped headlights and check that initialisation is performed.
If there is no initialisation, deal with the system faults.
Adjust the headlights manually after each computer calibration.
Carry out a road test followed by a check with the diagnostic tool.
DF009
CONTINUED 1
1.DEFNOTESNone.
Check the condition of the contacts and connections of the xenon bulb computer and rear height sensor.
Check the continuity and absence of interference resistance between:
Track 6 of the rear level sensor connectorTrack 3 of the xenon bulb computer connector
Track 5 of the rear level sensor connectorTrack 8 of the xenon bulb computer connector
Track 1 of the rear level sensor connector Vehicle earth
If the problem is still present, contact the Techline.
2.DEF
NOTESNone.
Check the condition of the rear sensor linkage and that it is correctly fitted.
Replace if necessary.
Check the condition of the contacts and connections of the xenon bulb computer and rear level sensor.
Check the continuity and absence of interference resistance between:
Track 6 of the rear level sensor connectorTrack 3 of the xenon bulb computer connector
Track 5 of the rear level sensor connectorTrack 8 of the xenon bulb computer connector
Next check the insulation of these connections against earth, and then against + 12 V.
If the problem is still present, contact the Techline.
Page 23 of 38

80C-23V2 MR-372-J84-80C000$060.mif
XENON BULBS
Fault finding – Interpretation of faults80C
Program No.: V010
Vdiag No.: 05
AFTER REPAIRTurn on the dipped headlights and check that initialisation is performed.
If there is no initialisation, deal with the system faults.
Adjust the headlights manually after each computer calibration.
Carry out a road test followed by a check with the diagnostic tool.
DF009
CONTINUED 2
3.DEFNOTESNone.
Check the condition of the rear sensor linkage and that it is correctly fitted.
Replace if necessary.
Check the condition of the contacts and connections of the xenon bulb computer and rear level sensor.
Check the continuity and absence of interference resistance between:
Track 6 of the rear level sensor connectorTrack 3 of the xenon bulb computer connector
Track 5 of the rear level sensor connectorTrack 8 of the xenon bulb computer connector
Next check the insulation of these connections against earth, and then against + 12 V.
If the problem is still present, contact the Techline.
4.DEF
NOTESNone.
Check the condition of the rear sensor linkage and that it is correctly fitted.
Replace if necessary.
Check the condition of the contacts and connections of the xenon bulb computer and rear level sensor.
Check the continuity and absence of interference resistance between:
Track 6 of the rear level sensor connectorTrack 3 of the xenon bulb computer connector
Track 5 of the rear level sensor connectorTrack 8 of the xenon bulb computer connector
Next check the insulation of these connections against earth, and then against + 12 V.
If the problem is still present, contact the Techline.
Page 24 of 38

80C-24V2 MR-372-J84-80C000$060.mif
XENON BULBS
Fault finding – Interpretation of faults80C
Program No.: V010
Vdiag No.: 05
AFTER REPAIRTurn on the dipped headlights and check that initialisation is performed.
If there is no initialisation, deal with the system faults.
Adjust the headlights manually after each computer calibration.
Carry out a road test followed by a check with the diagnostic tool.
DF009
CONTINUED 3
5.DEFNOTESNone.
Check the condition of the rear level sensor linkage.
Replace if necessary.
Check the condition of the contacts and connections of the xenon bulb computer and rear level sensor.
Check the continuity and absence of interference resistance between:
Track 6 of the rear level sensor connectorTrack 3 of the xenon bulb computer connector
Track 5 of the rear level sensor connectorTrack 8 of the xenon bulb computer connector
Next check the insulation of these connections against earth, and then against + 12 V.
If the problem is still present, contact the Techline.
Page 27 of 38

80C-27V2 MR-372-J84-80C000$070.mif
XENON BULBS
Fault finding – Conformity check80C
Program No.: V010
Vdiag No.: 05
SUB-FUNCTION: LIGHTING POSITION
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool.
Prerequisite: dipped headlights on.
Parameter
or Status
Checked
or ActionFunction Display and notes Fault finding
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 height
sensor circuit
PR018 Rear height 9° < PR018 < 110°
PR020 Actuator positions15 steps < PR020
< 520 stepsIf the value is incorrect, refer to the
interpretation of fault DF018 Actuator
and run command AC012 Check actuator
high and low position, to see if they work
properly
PR032Front reference
height23° < PR032 < 85.6°
If the value is incorrect, refer to the
interpretation of faults DF008 Front height
sensor circuit and DF009 Rear height
sensor circuit status 4.DEF
PR033Rear reference
height23° < PR032 < 89.5°
PR019 Vehicle speed0 mph (0 km/h)
< PR019 < 132 mph
(220 km/h)If the value is incorrect, see the interpretation
of fault DF001 Computer
Page 31 of 38
80C-31V2 MR-372-J84-80C000$100.mif
80C
Program No.: V010
Vdiag No.: 05
AFTER REPAIRCarry out another fault finding check on the system.
Clear the fault memory.
Deal with any other faults.
PR017
AND
PR018FRONT HEIGHT
REAR HEIGHT
NOTESThere 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 Front height
sensor circuit and DF009 Rear height sensor circuit, and follow the fault finding procedure.
LAD_V05_PR017 / LAD_V05_PR018
XENON BULBS
Fault finding – Interpretation of parameters
Page 33 of 38
80C-33
AFTER REPAIRCarry out another fault finding check on the system.
Clear the fault memory.
Deal with any other faults.
V2 MR-372-J84-80C000$100.mif
XENON BULBS
Fault finding – Interpretation of parameters80C
Program No.: V010
Vdiag No.: 05
IMPORTANT
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 allowed values even if a component is defective.
PR020ACTUATOR POSITIONS
NOTESThere 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 fault DF018, Actuators,
and follow the fault finding procedure.
To find out if an actuator is malfunctioning, see command AC012 Check actuator high and low position.
LAD_V05_PR020
Page 36 of 38

80C-36
AFTER REPAIRPerform a check using the diagnostic tool.
Deal with any faults found.
V2 MR-372-J84-80C000$120.mif
XENON BULBS
Fault finding – Fault finding charts80C
Program No.: V010
Vdiag No.: 05
ALP 2No correction of the height of the one or both headlights
whatever the vehicle load
NOTESOnly refer to this customer complaint after a complete check with the diagnostic tool.
Confirm that initialisation 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.
Repair if necessary.
Run 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 fault, replace the faulty adjustment motor(s).
LAD_V05_ALP2