sensor RENAULT TWINGO 2009 2.G Electrical Equipment - Lightening Workshop Manual

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LIGHTING
Fault finding - Function
Layout of the lighting function
The lighting function is provided by the computer: UCH. This computer is connected via a wire connection.
The UCH interprets the driver's requests via the steering column switch and from the rain/light sensor, and then
sends lighting function requests.
These requests are controlled by the UCH.
The UCH also controls the interior lights (courtesy lights, air conditioning operating light, central door locking
operating light).
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LIGHTING
Fault finding - Function80D
The LIGHTING function is divided into two sub-functions: Lighting command, Lighting power.
If the vehicle is equipped with a light detector, this function is controlled by the UCH.
Otherwise this function is controlled directly with no intervention from the UCH.
1. Lighting control
Operated by the driver
The UCH receives the driver's request via the steering column switches and the hazard warning lights button.
The UCH controls the supply to the side lights, dipped headlights, main beam headlights and front fog lights.
The dipped headlights are still supplied when the main beam headlights are activated.
Automatic headlighting: the automatic lighting function is activated by switching the side lights on and off twice in
succession: a beep will sound to confirm this.
Check the statuses of the following commands:
Operated by the light sensor
The rain and light sensor is a single and unique sensor fitted in the windscreen. It is linked by a single connection to
the UCH.
The light sensor enables automatic operation of the side lights and dipped headlights as soon as the vehicle is in a
dark place (tunnel, night, gloomy weather conditions, etc.).
View the sensor status using status ET115 Request to switch on lights by light sensor.
The sensor configuration can be viewed by reading configuration LC044 Rain/light sensor and can be altered using
command CF035 Rain/light sensor.
The automatic lighting function is configured using CF193 "Automatic lighting function" and can be viewed using
LC095 "Automatic lighting function". Configuration CF194 "Automatic wiper function" is also connected to the
automatic lighting function and this function can be viewed using LC096 "Automatic wiper function".
2. Lighting output
The UCH controls the interior lighting supply (courtesy lights, footwell lights, etc.), the air conditioning and central
locking indicator lights.
The UCH controls the supply to the rear lights, front lights and the indicators.
The operation of the lights supplied by the UCH can be checked using actuator commands AC009 "Rear fog
lights", AC022 "Left-hand indicator", AC023 "Right-hand indicator", AC063 "Gradual lighting and dimming
of the courtesy light", AC062 "Main beam headlights", AC054 "Dipped headlights", AC055 "Side lights" and
AC008 "Front fog lights". ET081 Lighting stalk position
ET085 Hazard warning lights button
ET111 Front fog lights request
ET082 Rear fog lights request
ET083 Left hand indicator request
ET084 Right hand indicator request
ET463 Door(s) or tailgate

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LIGHTING
Fault finding - Function80D
Exchanges between the lighting function components
Rain/light sensor - UCH
Functions available and operating mode
–Hazard warning lights switched on by ABS:
This function is available for all countries except Brazil, Finland, Great Britain, Japan and Sweden.
In the event of braking involving rapid deceleration, the ABS computer transmits a request to the UCH to switch on
the hazard warning lights via the multiplex network. The illumination of the hazard warning lights by the ABS is
configured using CF024 "Illumination of hazard warning lights by the ABS", and this function can be viewed
using LC018 "Illumination of the hazard warning lights by the ABS".
–See-me-home lighting:
This function is available on top of the range vehicles.
It switches on the dipped headlights for several seconds. This function is activated without using + 12 V APC by
using the "headlight flasher" several times. The See-me-home lighting function is configured using CF032 "See-me-
home lighting", and this function can be viewed using LC025 "See-me-home lighting".
–Daytime running lights:
In Scandinavian countries, when the engine is running, this function switches on the side lights and dipped
headlights without the driver switching them on. The daytime running lights function is configured using CF014
"Daytime running lights", and this function can be viewed using LC008 "Daytime running lights".
–Automatic headlighting:
This function is only available if the vehicle is equipped with a rain/light sensor.
It lights up the side lights and the dipped headlights as soon as the exterior light fades (night, tunnel, etc.).
This function is activated by turning the horn and lights switch from the OFF position to the "ON" position (side lights)
twice in succession.
This function can be configured using one of the following configurations:
–CF193 "Automatic lighting function" and can be viewed using LC095 "Automatic lighting function".
–CF194 "Automatic wiper function" and can be viewed using LC096 "Automatic wiper function".
–CF035 "Rain/light sensor" and can be viewed using LC044 "Rain/light sensor". –brightness value
–request to automatically switch on dipped headlights
–tunnel detection
–night/day detection
Rain and light
sensorUCH
–type of windscreen (heat reflecting or tinted)

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LIGHTING
Fault finding - Configurations and programming
UCH LIGHTING CONFIGURATIONS
List of individual configurations available on the diagnostic tool with the associated configuration reading
Procedure for modifying a configuration
–establish dialogue with the computer corresponding to the desired configuration.
–select the "repair mode" menu,
–select the "Write configuration" menu,
–select the line which corresponds to the configuration,
–at the same time, select the line for the vehicle equipment or the customer choice,
–Click on "Confirm",
–in the "Read configuration" menu, check that the configuration has been completed. ConfigurationConfiguration
readingName of configuration Choice of configuration
CF032 LC025"See-me-home lighting" WITH/WITHOUT
CF021 LC015"Front fog lights" WITH/WITHOUT
CF014 LC008"Daytime running lights" WITH/WITHOUT
CF193 LC095"Automatic lighting function" WITH/WITHOUT
CF194 LC096"Automatic wiper function" WITH/WITHOUT
CF035 LC044"Rain/light sensor" PRESENT/ABSENT
CF024 LC018"Hazard warning lights switched on by ABS" WITH/WITHOUT
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LIGHTING
Fault finding - Conformity check
LIGHTING FUNCTION
SUB-FUNCTION: LIGHTING CONTROL
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool
(fault reading and configuration checks).
Application condition: engine stopped, + after ignition feed present.
Computer Order FunctionParameter or Status
checked or ActionDisplay and
NotesFault finding
UCH (see 87B,
Passenger
compartment
connection
unit)1
Lighting
controlET081:Lighting switch
positionSIDE
DIPPED
MAIN BEAM
HEADLIGHTSIn the event of a fault,
refer to the interpretation
for status ET081.
2ET085:Hazard warning
lights buttonPRESSED
RELEASEDIn the event of a fault,
consult the interpretation
for status ET085.
3
Lighting
requestET115:Request to
switch on lights
by light sensorPRESENT
ABSENTIn the event of a fault,
consult the interpretation
for status ET115.
4ET111:Front fog lights
requestPRESENT
ABSENTIn the event of a fault,
refer to the interpretation
for status ET111.
5ET082:Rear fog lights
requestPRESENT
ABSENTIn the event of a fault,
refer to the interpretation
of status ET082.
6ET083:Left hand
indicator requestPRESENT
ABSENTIn the event of a fault,
consult the interpretation
of statuses ET083
and ET084. 7ET084:Right hand
indicator requestPRESENT
ABSENT
8TailgateET463:Door(s) or
tailgateOPEN
CLOSEDIn the event of a fault,
consult the interpretation
for status ET0463.
9Vehicle
speedPR008:Vehicle speed0 mphIn the event of a fault,
carry out fault finding on
the ABS (see 38C, ABS
and 87B, Passenger
compartment
connection unit).
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LIGHTING
Fault finding - Fault Finding Chart
If the vehicle lighting is controlled by the UCH (with rain/light sensor):
If the switch is not a one-touch control:
If the vehicle lighting is not controlled by the UCH (no rain/light sensor):
ALP 2 No rear fog light
NOTESOnly refer to the customer complaints after performing a complete check using the
diagnostic tool.
If the horn and lights switch is a one-touch control:
Check the operation of status ET082 Rear fog lights request and command AC009
Rear fog light in the UCH. If there is a malfunction on status ET082 "Rear fog lights
request" and command AC009 "Rear fog lights", refer to the interpretation of status
ET082 "Rear fog lights request", of command AC009 "Rear fog lights" and of fault
DF109 "Rear fog lights control circuit".
Check the condition of the bulb and cleanliness of its
contacts.
Are the bulb and its contacts in good condition?
YES
Replace the light concerned.
Check that fuses F13 (10 A) and F39 (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.
Check for + 12 V (when there is a rear fog lights request) on connection 9P of components 172 and 173. Check
for an earth on connection MF of component 172 and connection MG on component 173.
NOClean the contacts and replace any bulb in
poor condition.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP2
MR-413-X44-80D000$900_eng.mif

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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 5 No side lights
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 AC055 Side lights in the UCH. If there is a malfunction on status ET081
"Lighting stalk position" and command AC055 "Side lights", refer to the
interpretation of status ET081 "Lighting stalk position" and of command AC055
"Side 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 fuses F13 (30 A), F42 (10 A) and F43 (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_ALP5

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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 6 No dipped 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 AC054 Dipped headlights in the UCH. If there is a malfunction on status
ET081 "Lighting stalk position" and command AC054 "Dipped headlights", refer
to the interpretation of status ET081 "Lighting stalk position" and of command
AC054 "Dipped 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), F34 (15 A) and F35 (15 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.
NOClean the contacts and replace any bulbs in
poor condition.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP6

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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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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