2009 RENAULT TWINGO check engine light

87B-79
MR-413-X44-87B000$480.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check87B
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.
FunctionParameter or Status
Checked or ActionDisplay and
NotesFault finding
Lights (continued)AC062:Main beam
headlightsThis command enables the
headlights to be activated.In the event of a fault, apply the
interpretation of DF098.
AC063:Progressive
switching on and off
of the courtesy lightThis command is used to
check that the gradual
courtesy light activation and
deactivation function is
operating correctly.In the event of a fault, apply the
interpretation of DF139.
Temperature
displayAC110:Temperature display Controls the display.In the event of a fault, apply the
interpretation of command
AC110.

87B-95
MR-413-X44-87B000$576.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
ET030
AIR CONDITIONING REQUEST 2
NOTESNo faults should be present or stored.
Apply the checks if:
–the status remains PRESENT when a climate control request had been made, with
the engine running.
SPECIFICATIONSABSENT
PRESENT
This is the request for air conditioning sent by the UCH to the engine management computer.
This request may reach the UCH in two ways:
–In the case of a vehicle fitted with manual air conditioning, by pressing on the air conditioning button.
–In the case of a vehicle fitted with climate control, by request from the user or the climate control computer in
automatic mode.
MANUAL AIR
CONDITIONING
Check that status ET142 Engine operating phase is RUNNING; otherwise, carry out
fault finding on the injection.
Check that status ET029 Air conditioning button is PRESSED (button indicator light
lit), otherwise perform fault finding on this status.
Check that status ET015 Passenger compartment blower is RUNNING; otherwise,
carry out fault finding on this status.
If the fault is still present, contact Techline.
If ET030 Air conditioning request 2 is Absent, check that there are no faults in the
UCH and injection system (see 13B, Diesel injection) or (see 17B, Petrol injection).
CLIMATE
CONTROLCarry out fault finding on the climate control computer (see 62B, regulated climate
control).
If the fault is still present, contact Techline.
AFTER REPAIRRepeat the conformity check from the start.
Carry out fault finding on the system.
UCH_V44_ET030

87B -128
MR-413-X44-87B000$624.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
UCH
Vdiag No.: 44
87B
ET114
ET115
WIPER REQUEST BY RAIN SENSOR
LIGHT ACTIVATION REQUEST BY LIGHT SENSOR
NOTESThere must be no present or stored faults.
Make sure that the vehicle is fitted with the rain and light sensor.
The status should change to LOW SPEED or HIGH SPEED if there is water on the
windscreen where the sensor is positioned.
The status should change to PRESENT when the light intensity requires the lights to
be switched on with the engine running.
Make sure that the other positions of the wiper control are working properly
Check the following configurations:
–Check that LC008 Daytime running lights is "With". Otherwise run CF014
Daytime running lights.
–Check that LC044 Rain/light sensor displays "Present". If not, run CF035 Rain/
light sensor.
–Check that LC095 Automatic headlight function displays "With". If not, run
CF193 Automatic headlight function.
–Check that LC096 Automatic wiper function displays With. If not, run CF194
Automatic wiper function.
SPECIFICATIONSET114: ABSENT/LOW SPEED/HIGH SPEED
ET115: PRESENT/ABSENT
Conditions:
Check that the switch stalk (component code 209) is in the intermittent position so that automatic operation can
be activated.
Check that the vehicle has a rain/light sensor (component code 1415).
Check that the function is not deactivated, perform the following cycle twice to activate the automatic headlight
function: Switch stalk (component code 209) OFF → Σωιτχη σταλκ (χοµπονεντ χοδε 209) to side lights ON
position.
Check the condition and connection of the 3-track connector of the rain/light sensor (component 1415) (tabs
bent, broken or oxidised).
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Check for + 12 V on connection BPT of component 1415.
Check for earth on connection MAM of component 1415.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
AFTER REPAIRRepeat the conformity check from the start.
Carry out fault finding on the system.
UCH_V44_ET114 / UCH_V44_ET115

87B -138
MR-413-X44-87B000$624.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
UCH
Vdiag No.: 44
87B
*Powerlatch: Time required for injection computer supply after + 12 V after ignition feed cut-off to the ignition switch. ET250
INJECTION
NOTESThere must be no present or stored faults.
Switch on the + after ignition feed for 20 seconds, switch off the ignition, wait until the
end of Powerlatch* (20 minutes maximum), then switch on the ignition again.
Check that the immobiliser warning light remains lit.
SPECIFICATIONSNOT PROTECTED
PROTECTED
After the setpoint has been obtained, if the status remains PROTECTED, first check that statuses ET046 Engine
immobiliser, ET181 Key allocated to vehicle and ET229 Injection immobiliser code are operating correctly.
Carry out a multiplex network test (see 88B, Multiplexing).
Carry out fault finding on the injection system (see 13B, Diesel injection or 17B, Petrol injection).
If the fault is still present, contact the Techline.
AFTER REPAIRRepeat the conformity check from the start.
Carry out fault finding on the system.
UCH_V44_ET250

87B -141
MR-413-X44-87B000$624.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
AFTER REPAIRRepeat the conformity check from the start.
Carry out fault finding on the system.
Special feature: Depending on the vehicle equipment, an additional fuse and diode are present on the
wiring: ET463
CONTINUED 2
Check the insulation, continuity and the absence of interference resistance of the following connections:
Central door locking/warning switch check (component code 1391):
●Connection code 20AW between components 645 and 1391.
●Connection code 20M between components 645 and 1391.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If the connections are correct, replace the central door locking/warning switch (component code 1391).
(See MR 411 Mechanical 84A, Control - Signals, Hazard warning lights and central door locking:
Removal - Refitting).
With the engine running, check that the door
open warning (buzzer) is active when the driver
door is open and the lights are on.
Is the warning active?
NO
Check the continuity of connection H24 between
components 140 and 1016 and between
components 119 and 1016.
Is the continuity correct?
NO
C
YESB

87B -171
MR-413-X44-87B000$912.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
UCH
Vdiag No.: 44
87B
ALP 28 Illumination of the "battery charge" warning light
NOTESCheck the battery voltage (see 80A Battery).
Check for faults using the diagnostic tool.
Deal with the other faults first.
Check with LC023 Engine type that the engine type configured matches the vehicle. Otherwise perform CF028
Engine type to modify the configuration.
IMPORTANT
The battery warning light can flash if a low battery charge is detected (no-load voltage less than 12.2 V: voltage
measured during technical use) for the first 12 miles (20 km), then the warning light stops flashing. Also, the magic
eye of the battery (the hydrometer) is black.
If a vehicle has been driven less than 12 miles (20 km), the battery warning light is flashing and the battery magic
eye (the hydrometer) is black, apply the following procedure:
-Recharge the battery for at least 6 hours. The battery must be disconnected (reconnection must be done to torque).
Note:
The battery must be recharged using a specific charger, which is listed in the "Garage Equipment" catalogue.
-After 6 hours, if the magic eye has not turned green, the battery must be replaced.
If the configuration is correct (see 80A Battery).
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP28

87B -173
MR-413-X44-87B000$912.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
UCH
Vdiag No.: 44
87B
ALP 30 Low light intensity
NOTESCheck the battery voltage (see 80A Battery).
Check for faults using the diagnostic tool. Deal with the other faults first.
With the engine running at idle speed, run command AC130 Alternator regulation.
–Wait 20 seconds.
–For 10 seconds the voltage of the alternator (component code 103) should be equal to 15 V ± 0.2 V, when
using a multimeter to measure on connection BPDA between components 103 and 645.
–Wait 20 seconds.
–For 10 seconds the voltage of the alternator (component code 103) must be equal to 13 V ± 0.2 V when
measuring between the alternator terminal (component code103) and the earth on connection 2N using a
multimeter.
If the values measured are not correct, check the starting - charging circuit (see 16A Starting - Charging) and
check the battery (see 80A, Battery).
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP30