RENAULT TWINGO 2009 2.G Engine And Peripherals Passenger Compartment Connection Unit OBD Workshop Manual

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 -163
MR-413-X44-87B000$816.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands87B
AC110
TEMPERATURE DISPLAY
NOTESSpecial notes:
Check that the vehicle is equipped with an external temperature sensor.
IMPORTANT
This command lasts approximately 30 seconds.
It makes it possible to check the connection between the display (component code 653) and the UCH
(component code 645).
With the command running, the temperature display should change; if not apply the fault finding procedure below.
Read configuration LC002 External
temperature sensor.
Is the configuration “With”?
YES
Check that LC067 "External temperature display" is "WITH". Otherwise
perform CF171 "Temperature display".
Check the condition and connection of the PE2 40-track UCH connector,
(component code 645) (tabs bent, 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 continuity of the following connection:
Connection code 47Z between components 645 and 653.
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.
If the connection is correct, replace the display (component code 653)
(see MR 86A, Radio, Display: Removal - Refitting).
If the fault is still present, contact Techline.
NOIf the vehicle is fitted with an external
temperature sensor, check that the
configuration CF029 “External
temperature sensor” displays “With”.
If the vehicle is not fitted with an external
temperature sensor, it is normal that the
external temperature is not displayed.
AFTER REPAIRCarry out another fault finding check on the system.
UCH_V44_AC110

87B -164
MR-413-X44-87B000$864.mif
V5
87B
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Customer complaints
NOTESSpecial notes:
This summary corresponds to the complete list of customer complaints for a UCH.
These customer complaints are divided by function in the section corresponding to the
function concerned.
DIALOGUE FAULT87B
NO DIALOGUE WITH THE COMPUTER ALP 1
LIGHTING80D
NO REAR FOG LIGHTS ALP 2
NO RIGHT-HAND DIRECTION INDICATOR ALP 3
NO LEFT-HAND DIRECTION INDICATOR ALP 4
NO SIDE LIGHTS ALP 5
NO DIPPED BEAM HEADLIGHTS ALP 6
NO HEADLIGHTS ALP 7
NO FRONT FOG LIGHTS ALP 8
LIGHTS DO NOT SWITCH OFF AFTER + AFTER IGNITION
FEED IS CUT AND DRIVER'S DOOR IS OPENEDALP 9
LIGHTS DO NOT SWITCH ON AT NIGHT ALP 10
NO SEE-ME-HOME LIGHTING ALP 11
NO COURTESY LIGHTS ALP 12
MR-413-X44-87B000$864.mif
UCH
Vdiag No.: 44

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 -166
MR-413-X44-87B000$864.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Customer complaints87B
ENERGY MANAGEMENT87B
NO + ACCESSORIES FEED ALP 26
NO + AFTER IGNITION FEED ACTIVATION OR
+ AFTER IGNITION FEED REMAINS JAMMEDALP 27
BATTERY WARNING LIGHT COMES ON ALP 28
STARTER NOISY ALP 29
LOW LIGHT INTENSITY ALP 30
SUNROOF87B
THE SUNROOF DOES NOT WORK ALP 31
MEMORY KEY87B
NO INFORMATION IN THE KEYFAULT
FINDING
CHART
32
EXTERNAL TEMPERATURE DISPLAY 87B
NO EXTERNAL TEMPERATURE DISPLAYALP 33

87B -167
MR-413-X44-87B000$912.mif
V5
87B
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
ALP 1 No dialogue with the computer
NOTESCheck the condition and connection of the battery connections (see 80A Battery).
Check the condition of the fuses.
Check the battery voltage (see 80A Battery).
Repair if necessary (see MR 411 Mechanical 80A Battery).
Switch on the + after ignition feed.
Connect the diagnostic tool and perform the required operations.
Connect the diagnostic tool to another vehicle to check that it establishes dialogue correctly with the
vehicle. If dialogue is established correctly.
Check the multiplex network of the faulty vehicle (see 88B Multiplexing).
Check the connection between the diagnostic tool and the diagnostic socket (connection and cable in good
condition),
the computer supplies and the engine and passenger compartment fuses.
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 presence and condition of fuse F11 (20 A) on the passenger compartment fuse and relay box
(component code 1016). Replace the fuse if necessary.
Check the condition and connection of the connector of component 225 (tabs bent, oxidised or broken).
Check for + 12 V battery feed on connection BP19 of component 225.
Check for earth on connection MAM (for right-hand drive vehicles) or MAN (for left-hand drive vehicles) of
component 225.
Check for + after ignition feed on connections AP43, BP15, BPT, BP6, BP13, BP19, SP2, SP15 of
component 645.
Check for + 12 V accessories feed on connections SP2 and SP15 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.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP1
MR-413-X44-87B000$912.mif
UCH
Vdiag No.: 44

87B -168
MR-413-X44-87B000$912.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
UCH
Vdiag No.: 44
87B
ALP 1
CONTINUED
Check the insulation, continuity and the absence of interference resistance of the following connections:
UCH check:
Connection code BP15 between components 645 and 1033.
Connection code BP6 between components 645 and 1033.
Connection code BP3 between components 645 and 1033.
Connection code AP43 between components 645 and 1033.
Connection code SP2 between components 645 and 1016.
Connection code SP15 between components 645 and 1016.
Connection code MAN or MAM between component 645 and the earth MAN (left-hand drive) or MAM
(right-hand drive).
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 or replace it.
Diagnostic socket check:
Connection code BP19 between components 225 and 1016.
Connection code 133B between components 225 and 645.
Connection code 133C between components 225 and 645.
Connection code MAN or MAM between component 225 and the earth MAN (left-hand drive) or MAM
(right-hand drive).
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, contact the Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.

87B -169
MR-413-X44-87B000$912.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
UCH
Vdiag No.: 44
87B
ALP 26 Accessories feed not activated
NOTESCheck the battery voltage (see 80A Battery).
Start the fault finding procedure with the ignition off and the vehicle locked.
When the vehicle is unlocked, the instrument panel should light up for a moment.
Otherwise, carry out fault finding on the multiplex network (see 88B, Multiplexing).
Check the operation of status ET239 "Ignition switch position".
Check the presence and condition of fuses F27 (5 A), depending on the equipment, and F29 (15 A) on the
passenger compartment fuse and relay box (component code 1016).
Replace the fuse if necessary.
Check the condition and connection of the connectors of components 645 and 1016 (tabs bent, oxidised or
broken).
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 for earth on the connection MAM (for right-hand drive vehicles) or MAN (for left-hand drive vehicles) 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 the insulation, continuity and the absence of interference resistance of the following connections:
Connection code SP2 between components 645 and 1016.
Connection code SP15 between components 645 and 1016.
Connection code MAN or MAM between component 645 and earth MAN or MAM (depending on the driving
layout; right-hand or left-hand drive).
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, contact the Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP26

87B -170
MR-413-X44-87B000$912.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
UCH
Vdiag No.: 44
87B
ALP 27No + after ignition feed activation or the + after ignition feed stays
jammed
NOTESCheck the battery voltage (see 80A Battery).
Check for faults using the diagnostic tool. Deal with the other faults first.
The + accessories feed activation function should be working; if not deal with ALP 26
Accessories feed not activated first.
Make sure that status ET239 Ignition switch position is working.
Make sure that status ET239 Ignition switch position
is workingApply the interpretation of the status if necessary.
Run a multiplex network test (see 88B, Multiplexing).
See 13B, Diesel injection or see 17B, Petrol injection.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP27