2009 RENAULT TWINGO lock

87B-24
MR-413-X44-87B000$336.mif
V5
87B
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault summary table
Summary of sensors and actuators on which the UCH can carry out fault finding (with the corresponding
engineering office codes).
Tool fault Associated DTC Diagnostic tool title
DF0019510 UCH
DF0119522 Rain/light sensor circuit
DF01295D1 Right-hand direction indicator circuit
DF01395D0 Left-hand direction indicator circuit
DF0279550 External temperature sensor circuit
DF04095A0 Rear screen wiper park position
DF0419560 Heated rear screen warning light circuit
DF0429558 Air conditioning warning light circuit
DF0549501 Computer
DF0629580 Starter relay control circuit
DF06595F0 Electric window authorisation connection
DF0829570 Door locking button indicator light circuit
DF08795C2 Side lights relay control circuit
DF08895C3 Dipped beam headlights relay control circuit
DF09795 A1 Windscreen wiper park position control
DF09895C4 Main beam headlight relay control circuit
DF10895C5 Front fog lights control circuit
DF10995C6 Rear fog lights control circuit
DF1339574 Deadlocking motor(s) circuit
DF13495D2 Hazard warning lights indicator light circuit
DF1359520 Rain detector
DF1369521 Light sensor
DF13796B1 UCH - Alternator connection
DF13896B2 Alternator
DF1399660 Interior lights
DF14096B3 Voltage regulator
DF21295B0 Alarm circuit
MR-413-X44-87B000$336.mif
UCH
Vdiag No.: 44

87B-25
MR-413-X44-87B000$384.mif
V5
87B
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
DF001
PRESENT
OR
STOREDUCH
1.DEF : Internal electronic fault
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after the ignition is switched off and back on.
If the fault is stored, clear the fault, switch off the ignition and disconnect the F8 (15A) fuse of the UCH supply
(component code 645) on the passenger compartment fuse and relay box (component code 1016).
–Refit the fuse and switch the ignition back on.
–Request locking and then unlocking, then start the engine.
Check the condition and connection of the PE1, PE2 and PE3 connectors of the UCH (component code 645)
(tabs pushed back, oxidised, broken).
If the connector(s) are faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring
repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Check for + after ignition feed on connection AP43 of component 645.
Check for + accessories feed on connection SP2 (for vehicles fitted with a manual gearbox) or SP15
(for vehicles fitted with a sequential gearbox) of component 645.
Check for earth on connection NAM of component 645. Check the earth on connection MAM of component 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 fault reappears as stored, contact Techline.
If the fault does not reappear, switch the lighting, wipers, vehicle locking and climate control request controls on
and off several times, then read the faults again.
If the fault is still present. Do not operate on the computer, contact Techline.
AFTER REPAIRIf the computer has been replaced (at the request of the Techline): reconfigure the new
UCH (see Configurations and programming).
Deal with any other faults.
UCH_V44_DF001
MR-413-X44-87B000$384.mif
UCH
Vdiag No.: 44

87B-38
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
*RF: radio frequencyDF054
PRESENT
OR
STORED
COMPUTER
The radiofrequency receiver inside the UCH computer does not work
1.DEF : Internal electronic fault
NOTESConditions for applying the fault finding procedure to stored faults:
–The fault is declared present after the ignition has been switched on.
If the fault is stored, switch off the ignition and check the F8 (15A) fuse of the UCH supply (component
code 645) on the passenger compartment fuse and relay box (component code 1016).
–Replace the fuse if necessary, clear the fault and switch on the ignition again.
–Request locking and then unlocking, then start the engine.
Check for + after ignition feed on connections AP43, BP15, APT, BP6, BP13, BP19, SP2, SP15 of
component 645.
Check for + 12 V accessories feed on connections SP2 and SP15 of component 645.
Check for earth on connections MAN and NAM of component 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.
Check that status ET045 “RF* signal received” is “Yes” by pressing the locking button on the key, if when
pressing the status is “No” check the battery and the conformity of the key.
If the fault does not reappear, switch the lighting, wipers, vehicle locking and climate control request controls on
and off several times, then read the faults again.
If the fault is still present. Do not operate on the computer, contact Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF054

87B-41
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
*CPE: Electric central door locking.DF082
PRESENT
OR
STORED
DOOR LOCKING BUTTON CIRCUIT
CC.0 : Short circuit to earth
NOTESConditions for applying fault finding procedures to stored faults:
The fault appears after:
Pressing the central door locking button.
OR
Running AC020 CPE* button indicator light.
Check that the vehicle is correctly configured:
Check that LC003 Deadlocking is With. Otherwise carry out CF009 Deadlocking.
Check that LC040 Automatic locking when driving is With. Otherwise carry out CF108 Automatic locking
when driving.
Check that LC093 Central door locking is With. Otherwise perform CF192 Central door locking.
Check that the door locking button indicator light comes on when running command AC020 CPE button
indicator light.
Check that fuses F42 (10 A) and F46 (15 A) on component 1016 are sound and correctly fitted.
Check the condition and connection of the door lock switch/hazard warning lights switch connector (component
code 1391) (bent, oxidised, broken tabs).
Check the condition and connection of the UCH 40-track connector PE2 (component code 645) (tabs bent,
oxidised or broken).
Check for + 12 V on the following connections:
●Connection code 20M 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.
Check the insulation, continuity and the absence of interference resistance on the connections between:
●Connection code 20M 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 fault is still present, replace the central door locking/hazard warning lights switch (component code 1391).
(See MR 411 Mechanical systems 84A, Controls - Signals, Hazard warning lights and central door locking:
Removal - Refitting).
If the fault 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_DF082

87B-57
MR-413-X44-87B000$432.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF133
PRESENT
OR
STOREDDEADLOCKING MOTOR(S) CIRCUIT
CC.1: Short circuit to + 12 volts
CO.0: Open circuit or short circuit to earth
NOTESConditions for applying the fault finding procedure to stored faults:
If the fault reappears as present after:
The ignition is switched on and the deadlocking button has been pressed.
OR
Activation of AC035 Deadlocking.
Check that LC003 Deadlocking is definitely With. Otherwise, perform CF009
Deadlocking.
Check that LC040 Locking when driving is definitely With. Otherwise, perform
CF008 Locking when driving.
Ensure that the central door locking is correctly fixed; there must be no objects
preventing the central door locking from operating correctly.
Check that the doors and tailgate are closed correctly during the electrical
checks.
Check the presence and condition of fuse F14 (20 A) in the passenger compartment fuse and relay box
(component code 1016).
Replace the fuse if necessary.
Check the condition and connection of connectors PE1, PE2 and PE3 of the UCH (component code 645) (tabs
bent, oxidised, broken).
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.
Check the condition and connection of the electric central door locking connectors for the driver's and passenger's
doors (tabs bent, oxidised, bent etc.).
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.
When deadlocking, check the signal status on components 140 and 141 of the following connections using an
oscilloscope (refer to test1 Central door locking).
Right or left-hand door locks:
Oscilloscope red test pin on connection 20AP 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.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF133

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