check engine RENAULT TWINGO RS 2009 2.G Engine And Peripherals Passenger Compartment Connection Unit OBD Owner's Manual

87B-82
MR-413-X44-87B000$480.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check87B
SUB-FUNCTION: BATTERY
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 notes Fault finding
Battery voltagePR001:Battery voltage9 V < X < 16 VIn the event of a fault, run fault
finding on the charging circuit
(see 80A, Battery).
PR074:Battery setpoint
voltageIndicates the battery
setpoint in V.In the event of a fault, apply the
interpretation of parameter
PR074.
PR076:Battery voltage after
restIndicates the battery
voltage after rest in V.In the event of a fault, apply the
interpretation of parameter
PR076.
Alternator
operationET142:Engine operating
phaseSTOPPED
STARTING
RUNNING
STALLEDIn the event of a fault, apply the
interpretation of status ET142.

87B-83
MR-413-X44-87B000$480.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check87B
SUB-FUNCTION: ALTERNATOR
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 notes Fault finding
Battery voltagePR073:Alternator charge
signalIndicates the
alternator charge in V.In the event of a fault, apply the
interpretation of parameter PR073.
Alternator
setpointPR075:Alternator setpoint
voltage
Indicates the alternator
setpoint in V.In the event of a fault, apply the
interpretation of parameter PR075.
Battery voltagePR001:Battery voltage9 V < X < 16 VIn the event of a fault, run fault finding
on the charging circuit (see, 80A
Battery), run fault finding on the
multiplex network (see 88B,
Multiplex) and run fault finding on the
injection (see 13B, Diesel injection
or 17B, Petrol injection).
EnginePR024:Engine coolant
temperature˚C
PR025:Engine speedrpmIn the event of a fault, run fault finding
on the multiplex network (see 88B,
Multiplex) and run fault finding on the
injection (see 13B, Diesel injection
or 17B, Petrol injection).
ET142:Engine operating
phaseSTOPPED
STARTING
RUNNING
STALLEDIn the event of a fault, apply the
interpretation of status ET142.
AlternatorAC130:Alternator regulationIndicates the
regulation of the
alternator in volts.In the event of a fault, run fault finding
on the charging circuit (see 80A,
Battery).

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-99
MR-413-X44-87B000$576.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
UCH
Vdiag No.: 44
87B
ET046
ENGINE IMMOBILISER
NOTESNo faults should be present or stored.
Apply the checks only if, the status remains ACTIVE after the ignition is switched off
and back on again under the following conditions.
SPECIFICATIONSACTIVE
INACTIVE
Check sure that ET239 Ignition switch position is + after ignition feed. Otherwise, refer to the interpretation of
this status.
Check that ET185 Key code received is YES.
Otherwise, refer to the interpretation of this status.
Check that ET181 Key allocated to vehicle is YES.
Otherwise, refer to the interpretation of this status.
Check that ET008 UCH blank is NO.
Otherwise, refer to the interpretation of this status.
Check that ET229 Injection immobiliser code is PROGRAMMED.
Otherwise, refer to the interpretation of this status.
Check that ET250 Injection is NOT PROTECTED.
Otherwise, refer to the interpretation of this status.
Carry out fault finding on the multiplex network (see 88B, Multiplexing).
If none of the computers on the vehicle has a malfunction and the statuses named in the notes are working
properly, contact Techline.
AFTER REPAIRRepeat the conformity check from the start.
Carry out fault finding on the system.
UCH_V44_ET046

87B-118
MR-413-X44-87B000$624.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
UCH
Vdiag No.: 44
87B
ET087
ONE-TOUCH WINDOW CONTROL/SUNROOF AUTHORISATION.
NOTESThere must be no present or stored faults.
Check the following configuration:
–Check that LC070 One-touch windows/SR* is With. Otherwise, perform CF173
One-touch windows/SR.
Authorisation by the UCH of the one-touch window winder and/or sunroof motor
function is present under the following conditions:
–+ ACCESSORIES FEED,
–+ AFTER IGNITION FEED,
–when the engine is running.
SPECIFICATIONSPRESENT
ABSENT
Check the condition and connection of the PE2 24-track UCH connector, (component code 645) (tabs bent,
broken, oxidised).
Check the condition and connection of the driver's electric window motor 6-track connector (component 203)
(tabs bent, broken, 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.
If there is an electric sunroof, check that fuse F26 (20 A) is sound and correctly fitted in the passenger
compartment fuse and relay box (component code 1016).
Check the condition and connection of the connectors for component 1512.
With an electric sunroof, check the condition and connection of 4-track connector 339 in the A-pillar and the
sunroof computer 12-track connector (tabs bent, broken, 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.
AFTER REPAIRRepeat the conformity check from the start.
Carry out fault finding on the system.
UCH_V44_ET087

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 -130
MR-413-X44-87B000$624.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
UCH
Vdiag No.: 44
87B
ET142
ENGINE OPERATING PHASE
NOTESThere must be no present or stored faults.
SPECIFICATIONSSTOPPED
STARTING
RUNNING
STALLED
Run 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_ET142

87B -136
MR-413-X44-87B000$624.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
UCH
Vdiag No.: 44
87B
ET239
IGNITION SWITCH POSITION
NOTESThere must be no present or stored faults.
SPECIFICATIONS+ APC
+ START
+ ACCESSORIES FEED
Check the correct position and condition of fuses F2 (60A) in the engine fuse and relay box (component code
597) and F8 (15A) in the passenger compartment fuse and relay box (component code 1016).
Replace the fuse if necessary.
Check the condition and connection of the starter switch connector (component code 104) (tabs bent, broken,
oxidised).
Check the condition and connection of the PE1 connector of the UCH, (component code 645) (tabs bent,
oxidised, broken).
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 AP29 of component 232.
Check the insulation, continuity and the absence of interference resistance on the connections between the
UCH (component code 645) and the ignition switch (component 104):
●Connection code A between components 104 and 1016.
●Connection code BP12 between components 104 and 597.
●Connection code AP43 between components 1016 and 645.
●Connection code D between components 104 and 232.
●Connection code 1B between components 232 and 645.
●Connection code AP29 between components 1016 and 232.
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 in order, replace the ignition switch (component code 104).
(See MR 411 Mechanical 82A, Immobiliser, Ignition switch: Removal - Refitting).
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_ET239

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