door lock RENAULT TWINGO 2009 2.G Engine And Peripherals Passenger Compartment Connection Unit OBD Owner's Guide

87B -155
MR-413-X44-87B000$816.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands
UCH
Vdiag No.: 44
87B
AC004
AC005
CONTINUED 3
Check the insulation, continuity and the absence of interference resistance on the following connections:
Central door locking/warning switch check:
●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/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, replace the door lock affected (passenger door lock (component code 141) or
passenger door lock (component code 140)).
AFTER REPAIRCarry out another fault finding check on the system.

87B -161
MR-413-X44-87B000$816.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands
UCH
Vdiag No.: 44
87B
AC061
TAILGATE OPENING
NOTESSpecial notes:
If the opening element motors are supplied too quickly and it is too difficult to test
using a multimeter, the measurements must be made using an oscilloscope.
No faults should be present or stored.
Check that the interpretation of ET463 “Door(s) or tailgate” has been applied.
Check the condition and connection of the tailgate lock connector (component code 1322) (tabs bent, oxidised,
broken, 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.
Check the condition and connection of the PE1 connector of the UCH, (component code 645) (tabs bent,
broken, etc.).
Check that the earth on connection MYH of the tailgate switch (component code 560) and the tailgate lock
(component code 1322) is in perfect condition.
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 unlocking, check the signal status on component 1322, of the following connections using an oscilloscope
(refer to test1 “Central door locking”).
Tailgate lock:
Oscilloscope red test pin on connection 20S of component 1322.
Oscilloscope black test pin on connection MYH of component 1322.
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.
UCH_V44_AC061

87B -162
MR-413-X44-87B000$816.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands
UCH
Vdiag No.: 44
87B
AC061
CONTINUED
Check the insulation, continuity and the absence of interference resistance on the following connections:
Tailgate lock check:
●Connection code 20S between components 1322 and 645.
●Connection code 86H between components 1322 and 645.
With electric central door locking:
●Connection code 20G between components 560 and 645.
●Connection code MYH between component 560 and earth MHY.
Without electric central door locking:
●Connection code 20G between components 1733 and 645.
●Connection code 20BW between components 1733 and 560.
●Connection code MYH between component 560 and earth MHY.
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 of the lock contact (component code 1322) between connections 86H and MHY (tailgate closed)
The continuity of the lock contact (component code 1322) between connections 86H and MHY (tailgate open)
Replace the lock if not correct (component code 1322).
If the fault is still present, contact Techline.
AFTER REPAIRCarry out another fault finding check on the system.

87B -165
MR-413-X44-87B000$864.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Customer complaints87B
*RF: radio frequencyWIPERS85A
NO REAR SCREEN WIPING ALP 13
THE REAR SCREEN WIPER BLADE STOPS IN
AN INCORRECT POSITIONALP 14
NO WINDSCREEN WIPER FUNCTION WHEN THE STALK IS MANIPULATED ALP 15
THE WINDSCREEN WIPER BLADES STOP IN
AN INCORRECT POSITIONALP 16
NO FRONT AND REAR SCREEN WASHER ALP 17
NO WIPING WHEN IT RAINS ALP 18
NO CHANGE IN WIPING SPEED AFTER
ACTIVATING THE WIPER INTERMITTENT SPEED RINGALP 19
ACCESS/SAFETY82D
RF* CONTROL LOCKING/UNLOCKING
FAULT FAULTALP 20
TAILGATE OPENING PROBLEM ALP 21
CENTRAL LOCKING/UNLOCKING FAULT
ON ONE OR MORE DOOR(S)ALP 22
RENAULT ANTI-INTRUDER
DEVICE FUNCTION FAULTALP 23
OPENING FROM THE INSIDE NOT POSSIBLE ALP 24
PROTECTION - STARTING82D
STARTING PROTECTION (VEHICLE DOES NOT START
WHEN IGNITION KEY TURNED)ALP 25

87B -177
MR-413-X44-87B000$960.mif
V5
87B
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Tests
LOCK DOORS AND BOOTTEST 1
UNLOCK DOORS AND BOOTTEST 2
MR-413-X44-87B000$960.mif
UCH
Vdiag No.: 44

87B -178
MR-413-X44-87B000$960.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Tests87B
Recommended scale:
TEST 1 Central door locking
IMPORTANTThe signal frequency occurs every 250 ms.
To check a measurement, repeat the locking or activation request several times.
–Time base
–Range⇒ 250 µσ/διϖ
⇒ 5 ς/διϖ

87B -179
MR-413-X44-87B000$960.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Tests87B
Recommended scale:
TEST 2 Unlock doors and boot
IMPORTANTThe signal frequency occurs every 250 ms.
To check a measurement, repeat the locking or activation request several times.
–Time base
–Range⇒ 250 µσ/διϖ
⇒ 5 ς/διϖ