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

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Fault finding - Introduction80D
Faults
Faults are declared as either present or stored (depending on whether they appeared in a certain context and have
disappeared since, or whether they remain present but have not been diagnosed within the current context).
The present or stored status of faults should be taken into consideration when the diagnostic tool is switched on
after the + after ignition feed (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 instructions in the Notes section are applied, the fault is present. Deal with the fault
If the fault is not confirmed, check:
–the electrical lines which correspond to the fault,
–the connectors on these lines (corrosion, bent pins, etc.),
–the resistance of the component detected as faulty,
–the condition of the wires (melted or split insulation, wear).
Conformity check
The aim of the conformity check is to check data that does not produce a fault on the diagnostic tool because the
data is inconsistent. Therefore, this stage is used to:
–run diagnostics 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 gives 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 test with the diagnostic tool is OK but the customer complaint is still present, the fault should be processed by
customer complaint.
A summary of the overall procedure to follow is provided on the following page in the
form of a flow chart.

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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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Fault finding - Conformity check80D
SUB-FUNCTION: LIGHTING OUTPUT
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)1Front fog
lightsAC008:Front fog
lightsThis command is
used to activate
the front fog lightIn the event of a fault,
apply the procedure
for DF108 (see 87B,
UCH).
2Rear fog
lightsAC009:Rear fog
lightsThis command is
used to activate
the rear fog lightIn the event of a fault,
apply the procedure
for DF109 (see 87B,
UCH).
3
Direction
indicatorsAC022:Left hand
direction
indicatorsThis command is
used to activate
the left hand
direction
indicators.In the event of a fault,
refer to the
interpretation of
fault DF013 "Left-
hand indicator
circuit" (see 87B,
UCH).
4AC023:Right hand
direction
indicatorsThis command is
used to activate
the right hand
direction
indicators.In the event of a fault,
refer to the
interpretation of
fault DF012 "Right-
hand indicator
circuit" (see 87B,
UCH).
5
LightsAC055:Side lightsThis command
enables the side
lights to be
activated.In the event of a fault,
apply the procedure
for DF087 (see 87B,
UCH).
6AC054:Dipped
headlightsThis command
enables the
dipped
headlights to be
activated.In the event of a fault,
apply the procedure
for DF088 (see 87B,
UCH).
7AC062:Main beam
headlightsThis command
enables the main
beam headlights
to be activated.In the event of a fault,
apply the procedure
for DF098 (see 87B,
UCH).

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Fault finding - Conformity check80D
SUB-FUNCTION: LIGHTING OUTPUT (CONTINUED)
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 Notes Fault finding
UCH (see 87B,
Passenger
compartment
connection unit)8LightsAC063:Gradual lighting
and dimming of
the courtesy
lightThis command is
used to check that
the courtesy light
gradual lighting and
dimming function is
operating correctly.In the event of a
fault, apply the
procedure for
DF139 (see 87B,
UCH).
9Temperature
displayAC110:Temperature
displayControls the display.In the event of a
fault, apply the
procedure for
command
AC110 (see 87B,
UCH).

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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.