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80D-34
MR-413-X44-80D000$900_eng.mif
V1
LIGHTING
Fault finding - Fault Finding Chart80D
If the vehicle lighting is controlled by the UCH (with rain/light sensor):
If the vehicle lighting is not controlled by the UCH (no rain/light sensor):
ALP 7 No main beam headlights
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
Check, as a priority, the operation of status ET081 Lighting stalk position and
command AC062 Main beam headlights in the UCH. If there is a malfunction on
status ET081 "Lighting stalk position" and command AC062 "Main beam
headlights", refer to the interpretation of status ET081 "Lighting stalk position"
and of command AC062 "Main beam headlights".
Carry out a multiplex network test. If the multiplex
network contains faults (see 88B, Multiplexing).
Check the condition of the bulbs and the cleanliness
of their contacts.
Are the bulbs and their contacts in good
condition?
YES
Replace the light concerned.
Check that fuses F13 (30 A), F32 (10 A) and F33 (10 A) are sound and correctly fitted in the passenger
compartment fuse and relay box.
Replace the fuse if necessary.
Check the condition and connection of the light connector concerned (bent, oxidised, broken tabs).
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check the condition and connection of the horn and lights switch connector (tabs broken, bent, oxidised).
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
NOClean the contacts and replace any bulbs in
poor condition.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP7
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80D-36
MR-413-X44-80D000$900_eng.mif
V1
LIGHTING
Fault finding - Fault Finding Chart80D
If the vehicle lighting is not controlled by the UCH (no rain/light sensor):
If the vehicle lighting is controlled by the UCH (with rain/light sensor):
ALP 8 No front fog lights
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
If the fog light control on the horn and lights switch is a one-touch control, check that
the front fog lights are "WITH" by reading configuration LC015 "Front fog lights".
Otherwise use command CF021 "Front fog lights".
Check the operation of status ET111 Front fog lights request and command AC008
Front fog light in the UCH. If there is a malfunction on status ET111 "Front fog
lights request" and command AC008 "Front fog lights", refer to the interpretation
of status ET111 "Front fog lights request" and command AC008 "Front fog
lights".
Carry out a multiplex network test. If the multiplex
network contains faults (see 88B, Multiplexing).
Check the condition of the bulbs and the cleanliness
of their contacts.
Are the bulbs and their contacts in good
condition?
YES
Replace the light concerned.
Check that fuse F13 (10 A) is sound and fitted in the passenger compartment fuse and relay box.
Replace the fuse if necessary.
Check the condition and connection of the light connector concerned (bent, oxidised, broken tabs).
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
NOClean the contacts and replace any bulbs in
poor condition.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP8
Page 39 of 44

80D-39
MR-413-X44-80D000$900_eng.mif
V1
LIGHTING
Fault finding - Fault Finding Chart80D
ALP 9Lights are not switched off after switching off the + after ignition
feed and the driver's door opening
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
Check, as a priority, the operation of status ET115 "Request to switch on the lights
via the light sensor" and commands AC054 Dipped headlights and AC055 Side
lights in the UCH.
Note:
For the lights to switch off automatically after driving, the following conditions must all be met:
–engine stopped,
–ignition: 0 (inactive),
–vehicle speed > 0 mph (0 km/h),
–driver's door: closed.
Carry out a multiplex network test. If the multiplex
network contains faults (see 88B, Multiplexing).
Check the operation of status ET142 "Engine
operating phase".
Is the status functioning correctly?
YES
Make sure that status ET239 Ignition switch
position is working.
Is the status functioning correctly?
YES
NOApply the procedure for processing status
ET142.
NOApply the procedure for processing status
ET239.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP9
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80D-41
MR-413-X44-80D000$900_eng.mif
V1
LIGHTING
Fault finding - Fault Finding Chart80D
ALP 10 Lights not switching on at night
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
The engine must be running in order for the automatic lighting function to operate and
the system must be equipped with a rain/light sensor.
Check, as a priority, the operation of status ET115 "Request to switch on the lights
via the light sensor" in the UCH. Check that the following faults are not present:
–DF011 "Rain/light sensor circuit",
–DF135 "Rain sensor",
–DF136 "Light sensor".
Deal with the above faults if they are present.
Note:
The sensor requests the lights to be switched on when there is poor light intensity (at night, in a tunnel, etc.).
Check whether the vehicle has a rain/light sensor. If the vehicle does not have a rain/light sensor, explain to the
customer that this is normal, and that the vehicle does not have this feature.
Activate the automatic lighting function by switching
the side lights on and off twice in succession:
a beep will sound to confirm this.
Did a beep sound?
YES
NORefer to the interpretation of status ET081
"Lighting stalk position".
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP10
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80D-42
MR-413-X44-80D000$900_eng.mif
V1
LIGHTING
Fault finding - Fault Finding Chart80D
ALP 10
CONTINUED
If the vehicle is fitted with a rain/light sensor, check that the vehicle is configured with a rain/light sensor.
Check that LC044 "Rain/light sensor" displays "Present". If not, carry out CF035 "Rain/light sensor".
Check that LC096 "Automatic wiper function" displays "With". If not, carry out CF194 "Automatic wiper
function".
Check that LC095 "Automatic lighting function", displays "With". If not, carry out CF193 "Automatic
headlight function".
Check that status ET142 Engine operating
phase is RUNNING.
Is status ET142 RUNNING?
YES
Check that the windscreen is clean and in good condition (no cracks, bonded correctly, etc.).
Check that the sensor is present and correctly positioned.
Check that the windscreen is the correct type.
NORun fault finding on the multiplex network and
the injection computer. (see 88B,
Multiplexing and 13B, Diesel injection or
17B, Petrol injection)
AFTER REPAIRCarry out a complete check with the diagnostic tool.
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80D-43
MR-413-X44-80D000$900_eng.mif
V1
LIGHTING
Fault finding - Fault Finding Chart80D
ALP 11 No See-me-home lighting
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
Check whether the vehicle has a rain/light sensor. If the vehicle does not have a rain/light sensor, explain to the
customer that this is normal, and that the vehicle does not have this feature.
Check that LC025 "See-me-home lighting" is "With", otherwise use CF032 "See-me-home lighting".
Check that the ignition is switched off.
Flash the headlights one or more times (as required) to activate the See-me-home lighting function.
Check that the horn and lights switch is operating correctly using status ET081 "Lighting stalk position". In the
event of a fault with the horn and lights switch, refer to the interpretation of status ET081 "Lighting stalk
position".
Use the following commands to check that the side lights, dipped headlights and main beam headlights are
operating correctly.
–AC055 "Side lights",
–AC054 "Dipped headlights",
–AC062 "Main beam headlights".
In the event of a fault, refer to the interpretation of the following faults:
–DF087 "Side lights relay control circuit",
–DF088 "Dipped headlights relay control circuit",
–DF098 "Main beam headlights relay control circuit".
If the fault is still present, contact Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP11