2009 RENAULT TWINGO door lock

87B-58
MR-413-X44-87B000$432.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF133
CONTINUED 1
When unlocking, check the signal status on components 140 and 141 of the following connections using an
oscilloscope (refer to test2 Central door unlocking).
Right or left-hand door locks:
Oscilloscope red test pin on connection 20D of component 140 or 141.
Oscilloscope black test pin on connection 20C of component 140 or 141.
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.
Central door deadlocking check:
Check the insulation, continuity and the absence of interference resistance of the following connections:
●Connection code 20C between components 140 or 141 and 645.
●Connection code 20D between components 140 or 141 and 645.
●Connection code 20AP (specific to deadlocking) between components 140 or 141 and 1042.
●Connection code MAN between component 140 and earth MAN (for left-hand drive vehicles) and connection
code MAM between component 141 and earth MAM (for right-hand drive vehicles).
For manual gearbox:
●Connection code 86H between components 140 or 141 and 1016.
For sequential gearbox:
●Connection code H24 between components 140 and 1016.
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.
Central door locking relay check (for deadlocking):
Check the insulation, continuity and the absence of interference resistance of the following connections:
●Connection code BP3 between components 1042 and 1016.
●Connection code MAM between component 1042 and earth MAM.
●Connection code 20AP between components 1042 and 645.
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 supply and the earth of the central door locking relay (specific to deadlocking) are correct, replace the
relay.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.

87B-59
MR-413-X44-87B000$432.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF133
CONTINUED 2
If the supplies, central door locking connections, locking relay (specific to deadlocking) and central door locking
are correct, check the warning/central door locking switch (component code 1391).
Central door locking/warning switch check:
Check the insulation, continuity and the absence of interference resistance of the following connections:
●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 door lock concerned.
If the problem is still present, contact the Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.

87B-60
MR-413-X44-87B000$432.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF134
PRESENT
OR
STOREDHAZARD WARNING LIGHTS INDICATOR LIGHT CIRCUIT
CC.0: Short circuit to earth or short circuit to + 12 V
NOTESConditions for applying the fault finding procedure to stored faults:
If the fault reappears as present after:
Switching on the ignition and pressing the hazard warning lights button.
OR
Activating AC52 Hazard warning lights indicator light.
Note: If the hazard warning lights do not light up during emergency braking, check
that LC018 Illumination of hazard warning lights by ABS is definitely With.
Otherwise, run CF024 Illumination of hazard warning lights by ABS.
Check the presence and condition of fuse F42 (10 A) in the passenger compartment fuse and relay box
(component code 1016).
Replace the fuse if necessary.
Check the condition and connection of the central door locking/warning switch connector (component code
1391) (tabs broken, bent, oxidised).
Check the condition and connection of connectors PE1 and PE2 of the UCH (component code 645) (tabs bent,
oxidised, broken).
Check for + 12 V on connection LPD of the locking/warning switch (component code 1391).
Check for earth on connection MAN of the locking/warning switch (component code 1391).
If the connector or 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.
Switch check:
Check the insulation, continuity and the absence of interference resistance of the following connections:
●Connection code 64F between components 1391 and 645.
●Connection code 64Q between components 1391 and 645.
●Connection code MAN between component 1391 and earth MAN.
●Connection code LPD between components 1391 and 1016.
●Connection code 20AM between components 1391 and 645.
●Connection code 20AW between components 1391 and 645.
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 supply, earth and connections are correct, replace the door locking/warning switch (component code
1391) (see MR 411 Mechanical 84A, Control - Signals, Hazard warning lights and central door locking:
Removal - Refitting).
If the problem is still present, contact the Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF134

87B-71
MR-413-X44-87B000$480.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check87B
SUB-FUNCTION: ACCESS
* SR: Sunroof.
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
TailgateET061:Open tailgate
requestPRESENT
ABSENTIn the event of a fault, apply the
interpretation of status
ET061.
ET463:Door(s) or tailgateOPEN
CLOSEDIn the event of a fault, apply the
interpretation of status
ET463.
Locking/unlocking
buttonET186:Short press on door
closing buttonSignal can be
interpreted if the
ignition is switched off
(key removed from the
ignition switch).
ACTIVE = Remote
control door closing
button pressed for
longer than 2 seconds.
INACTIVE = Button not
pressed or pressed for
less than 2 seconds.In the event of a fault, refer to
the interpretation of status
ET186.
ET189:Long press on door
opening buttonACTIVE
INACTIVEIn the event of a fault, refer to
the interpretation of status
ET189.
Electric central locking
buttonET044:Central Locking
buttonDEPRESSED
RELEASEDIn the event of a fault, refer to
the interpretation of status
ET044.
One touch window /
SR*.ET087:One-touch window /
SR* authorisation.PRESENT
ABSENTIn the event of a fault, apply the
interpretation of status
ET087.
Locking commandAC004:Central door lockingThis command is used
to test whether central
door locking is workingIn the event of a fault, consult
the procedure for dealing
with command AC004.

87B-72
MR-413-X44-87B000$480.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check87B
SUB-FUNCTION: ACCESS (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
Deadlocking
commandAC035:DeadlockingThis command is used to test
the operation of the
deadlocking, if the vehicle is
configured WITH deadlocking.In the event of a fault, refer
to the interpretation of fault
DF133.
Door unlocking
switchAC005:Central door
unlockingThis command is used to test
whether the 4 doors, tailgate
and fuel filler flap unlocking
function is operating correctly.In the event of a fault,
consult the procedure for
dealing with command
AC005.
Tailgate opening
controlAC061:Tailgate openingThis command is used to test
whether the tailgate opening
motor is working.In the event of a fault,
consult the procedure for
dealing with command
AC061.

87B-74
MR-413-X44-87B000$480.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check87B
FUNCTION: AIR CONDITIONING
SUB-FUNCTION: USER SELECTION
* CPE: Electric central door locking.
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
User selectionET028:Heated rear screen
buttonDEPRESSED
RELEASEDIn the event of a fault, refer to
the interpretation of status
ET028.
ET029:Air conditioning
buttonDEPRESSED
RELEASEDIn the event of a fault, refer to
the interpretation of status
ET029.
ET015:Passenger
compartment blowerRUNNING
STOPPEDIn the event of a fault, refer to
the interpretation of status
ET015.
AC015:Air conditioning
button indicator lightThis command is used to test
the operation of the air
conditioning button indicator
light.In the event of a fault, refer to
the interpretation of DF042.
AC019:Heated rear screen
indicator lightThis command is for testing
operation of the heated rear
screen indicator light.In the event of a fault, refer to
the interpretation of DF041.
AC020:CPE* button
indicator lightThis command is used to
operate the electric central
locking button.In the event of a fault, refer to
the interpretation of DF082.
AC052:Hazard warning
lights indicator lightThis command is used to
activate the hazard warning
lights.In the event of a fault, refer to
the interpretation of DF134.

87B-77
MR-413-X44-87B000$480.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check87B
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.
FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
Lighting controlET081:Lighting switch
positionSIDE
DIPPED
MAIN BEAM
HEADLIGHTS
HAZARD LIGHTSIn the event of a fault, refer to the
interpretation for status ET081.
ET085:Hazard warning
lights buttonDEPRESSED
RELEASEDIn the event of a fault, refer to the
interpretation for status ET085.
Lighting requestET115:Request to switch on
lights by light sensorPRESENT
ABSENTIn the event of a fault, refer to the
interpretation for status ET115.
ET111:Front fog lights
requestPRESENT
ABSENTIn the event of a fault, refer to the
interpretation for status ET111.
ET082:Rear fog lights
requestPRESENT
ABSENTIn the event of a fault, refer to the
interpretation for status ET082.
ET083:Left-hand indicator
requestPRESENT
ABSENTIn the event of a fault, refer to the
interpretation of statuses
ET083 and ET084.
ET084:Right-hand indicator
requestPRESENT
ABSENT
TailgateET463:Door(s) or tailgateOPEN
CLOSEDIn the event of a fault, consult the
interpretation of status ET463.
Vehicle speedPR008:Vehicle speed0 mphIn the event of a fault, run fault
finding on the ABS system (see
38C, Anti-lock braking system).

87B-84
MR-413-X44-87B000$528.mif
V5
87B
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Status summary table
*CPE: Electric central door locking
*RF: radio frequencyTool status Diagnostic tool title
ET008Blank UCH
ET015Passenger compartment blower
ET027Windscreen wiper park position
ET028Heated rear screen button
ET029Air conditioning button
ET030Air conditioning request 2
ET044CPE* button
ET045RF* signal. received
ET046Engine immobiliser
ET047Brake pedal position
ET061Open tailgate request
ET077Wiper stalk position
ET078Windscreen washer request
ET079Rear screen washer request
ET080Rear screen wiper request
ET081Lighting switch position
ET082Rear fog lights request
ET083Left-hand indicator request
MR-413-X44-87B000$528.mif
UCH
Vdiag No.: 44