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

87B-7
MR-413-X44-87B000$096.mif
V5
87B
ENGINE HARNESS
FRONT ENGINE WIRING & ADDITIONAL HEADLIGHTS
DOOR WIRING
CEILING WIRING
PASSENGER COMPARTMENT WIRING
REAR BUMPER WIRING
TAILGATE WIRING
1UCH
2Passenger Compartment Relay/Fuse Box
3Electric power-assisted steering.
4Transponder ring.
5Air conditioning panel.
6One touch window/anti-pinch module.
7Exterior temperature sensor.
8Rain/light sensor & interior temperature sensor.
9Anti-pinch/sunroof.
2ABS computer.
2Injection computer.
3Preheating unit.
4Sequential gearbox computer.
5Engine fuse and relay box.
6Alternator.
7
2
61
2
3
5
4
8
5
7
43
1
6
9
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding
- List and location of components
MR-413-X44-87B000$096.mif
UCH
Vdiag No.: 44

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PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Role of components
GENERAL OPERATION
The UCH is involved in the following five functions (shared between several computers):
–Access-security function
This function is divided into three sub-functions: Access, Protection and Starting (see 82D, Access - Safety).
–Air heating and manual air conditioning function
This function is divided into four sub-functions, which are: User selection, Heating, Cold loop and Passenger
compartment ventilation (see 61A, Heating and see 62C, Manual air conditioning).
In this function, the UCH manages the heated rear screen operation indicator lights, heating controls and air
conditioning activation requests, by sending requests to the engine management computer:
–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.
–Wiping function
This function is divided into two sub-functions, which are: Wiper control and Wiper power (see 85A,
Wiping-washing).
–Lighting Function
This function is divided into two sub-functions, which are: Lighting control and Lighting power (see 80D, Lighting).
–Energy management function
Note: There is no UPC on this vehicle; this function is managed by the UCH.
The system is composed of the UCH which stores the programming for electrical energy management, the starter,
the battery, and the alternator controlled via a BSS connection.
The role of this system is:
●to ensure electrical energy is supplied to the vehicle whilst respecting the dynamic performance
constraints of the engine and transmission assembly,
●to control alternator loading* and load shedding** during engine management authorisation or variation of
the electrical load,
●to ensure the quality of the on board network voltage in terms of the voltage level and variation,
●to optimise the battery charge by applying a voltage to its terminals correlating to its initial charge status
(in sleep mode) and to its internal temperature,
●to inform the engine management about the mechanical power taken from the accessories pulley, the
alternator charge rate and the rotor excitation current value,
●to run fault finding on the charging circuit: “Battery” warning light display.
*loading: This operation consists of transferring control of the vehicle's electrical consumption from the battery
to the alternator.
**load shedding: This operation consists of involving the battery in the vehicle's general electric power balance.
MR-413-X44-87B000$192.mif
UCH
Vdiag No.: 44

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MR-413-X44-87B000$192.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Role of components87B
CONTINUED (Functions managed by the different UCH ranges on the New Twingo):
L1
Entry levelL2
Mid-rangeL3
Top of the
range
Lighting
Exterior lighting
Side, dipped beam, headlightsX
Direction indicators and hazard warning lightsXX X
One-touch front fog lightsX
One-touch rear fog lightsX
Lights on warning lightXX X
Hazard warning lights when decelerating hardXX X
Illumination of hazard warning lights when airbag triggeredXX X
Illumination of indicators when locking/unlockingXX
Automatic lighting when driving and stationaryX
Delayed extinction of headlights when stationary X
Daytime running lights onX
Lights switch off when driver's door openedX
Interior lighting
Interior lights supply (no gradual dimming function)X
Interior lights supply (gradual dimming)XX
Wipers
Windscreen wipers managementXX X
Automatic management of front wipers with rain sensorX
Rear wipersXX X
Windscreen and rear screen washersXX X
Energy management
Starter managementXX X
Controlled alternator (BSS connection)XX X

87B-13
MR-413-X44-87B000$240.mif
V5
87B
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Replacement of components
When replacing the UCH (see MR 411, Mechanical systems, 87B, Passenger compartment connection unit).
If replacing the computer, carry out the programming and configuration operations described (see configurations
and programming).
The order of programming and configuration operations is as follows:
1 - Write the VIN, using command VP004 Write VIN.
2 - Program the UCH using command SC004 UCH programming.
3 - Configuration of the UCH (in the Configuration and programming menu) using the following commands:
CF031 Calibration,
CF019 Type of heating and air conditioning system,
CF028 Engine type,
CF171 Temperature display,
CF029 External temperature sensor,
CF173 One-touch windows/sunroof (SR)*.
CF032 See-me-home lighting,
CF021 Front fog lights,
CF014 Daytime running lights
CF193 Automatic headlight function,
CF194 Automatic wiping function,
CF035 Rain/light sensor,
CF191 Wiper intermittent speed ring,
CF024 Hazard warning lights activated by ABS,
CF108 Locking via the RAID,
CF009 Deadlocking,
CF192 Central door locking,
CF195 Type of key,
CF229 Alarm.
4 - Key allocation, using command SC015 Key allocation.
5 - Configuration of the multiplex network is used to define (in the UCH) the different computers present and which
support fault finding on the multiplex network.
* TO: Sunroof.
MR-413-X44-87B000$240.mif

UCH
Vdiag No.: 44

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UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Configurations and programming87B
Functions available and operating mode
–Deadlocking (CF009)
This function enables you to disable the interior door opening control. This function is activated by a second locking
request from the key or the electric central locking switch.
This function is only available on vehicles fitted with a top of the range UCH.
–Hazard warning lights activated by ABS (CF024)
This function is available for all countries except Brazil, Finland, Great Britain, Japan and Sweden.
For Brazil, Great Britain, Japan, Sweden and Finland configure NONE.
For other countries, configure WITH.
In the event of braking causing rapid deceleration, the ABS computer transmits an activate hazard warning lights
request via the multiplex network to the UCH.
–New vehicle storage mode (LC041 New vehicle storage mode)
If this mode is activated, consult the command, see LC041 "New vehicle storage mode" and contact the Techline.
–Daytime running lights
This configuration automatically activates the side lights and dipped beam headlights when the engine is running,
without the driver using the lighting controls.
To be used in accordance with legislative requirements.
CF031 Calibration:
When replacing the UCH computer, perform this configuration.
This command lasts approximately 30 seconds.

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V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Configurations and programming87B
UCH CONFIGURATIONS
List of individual configurations available on the diagnostic tool with the associated configuration reading.
* SR: Sunroof.
*RF: radio frequencyConfigurationConfiguration
readingName of configuration Choice of configuration
CF031 "Calibration",To be performed if replacing
the UCH.
CF019 LC013"Type of heating and air conditioning
system",HEATING/MANUAL/
AUTOMATIC
CF028 LC023 "Engine type",Configuration. 1 (K9K)
Configuration. 2 (D7F/D4F
without air conditioning)
Configuration. 3 (other engine)
CF171 LC067 "Temperature display"WITH/WITHOUT
CF029 LC002 "Exterior temperature sensor",WITH/WITHOUT
CF173 LC070 "One-touch windows/SR*",WITH/WITHOUT
CF032 LC025 "See-me-home lighting",WITH/WITHOUT
CF021 LC015 "Front fog lights"WITH/WITHOUT
CF014 LC008 "Daytime running lights",WITH/WITHOUT
CF193 LC095 "Automatic headlighting function",WITH/WITHOUT
CF194 LC096 "Automatic wiping function",WITH/WITHOUT
CF035 LC044 "Rain/light sensor", PRESENT/ABSENT
CF191 LC094 "Wiper intermittent speed ring",WITH/WITHOUT
CF024 LC018"Hazard warning lights switched on by
ABS",WITH/WITHOUT
CF108 LC040 "Automatic locking when driving",WITH/WITHOUT
CF009 LC003 "Deadlocking",WITH/WITHOUT
CF192 LC093 "Central door locking",WITH/WITHOUT
CF195 LC097 "Type of key". STANDARD/RF*
CF229 LC126 "Alarm".WITH/WITHOUT

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-26
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF011
PRESENT
OR
STOREDRAIN/LIGHT SENSOR CIRCUIT
1.DEF : Open circuit or short circuit
NOTESConditions for applying the fault finding procedure to stored faults:
Switch on the ignition, activate automatic headlighting by quickly performing the
following manipulation twice: control stalk (component code 209) on zero position →
control stalk (component code 209) in Side light position.
Status ET114 “Wiper request by rain sensor” should be “Low speed” or “High
speed” when the water runs over the rain/light sensor on the windscreen or
status ET115 “Request for lights to be switched on by light sensor” should be
“Present” by placing an opaque cover over the rain/light sensor.
Note:
If there is an open circuit on connection BPT, there is a malfunction on the
electric windows, rain/light sensor, interior light(s) and luggage compartment
light.
Check that the vehicle has a rain/light sensor (component code 1415).
Check that the function is not deactivated, quickly perform the following cycle twice to activate the automatic
headlighting function: Monolever (component code 209) OFF → Monolever (component code 209) in Side light
ON position.
Check that the vehicle has a rain/light sensor (component code 1415).
Check that LC044 "Rain/light sensor" displays "Present". If not, carry out CF035 "Rain/light sensor".
Check that LC096 "Automatic wiper function" displays "With". If not, carry out CF194 "Automatic wiper
function".
Check that LC095 "Automatic headlight function", displays "With". If not, carry out CF193 "Automatic
headlight function".
Check the condition and the positioning of fuses F2 (15A), F8 (15A), F19 (5A), F27 (5 A) depending on the
equipment and F29 (15A) on the passenger compartment fuse and relay box (component code 1016).
Replace the fuse(s) or repair if necessary.
Check the condition and connection of the PE1, PE2 and PE3 connectors of the UCH (component code 645)
(tabs pushed back, oxidised, broken).
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.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF011

87B-28
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF012
PRESENT
RIGHT-HAND DIRECTION INDICATOR CIRCUIT
CC.0 : Short circuit to earth
C0.1 : Open circuit or short circuit to + 12 V
1.DEF : Bulb(s) not working or short circuit to + 12 V
NOTESConditions for applying the fault finding procedure to stored faults:
The fault appears after:
The right-hand indicator stalk is activated.
OR
Activation of AC023 Right-hand indicator.
Check that fuses F13 (30A) and F15 (5 A) are sound and correctly fitted in the passenger compartment fuse and
relay box (component code 1016).
Check the bulbs and condition of the bulb supports.
Replace the bulbs if necessary.
With command AC023 Right-hand indicator running, check for + 12 V on the following connection:
●Connection code 64D.
Between components 256 and 645.
Between components 268 and 645.
Between components 173 and 645.
Check the continuity on the following connection:
●Connection code 64D.
Between components 256 and 645.
Between components 268 and 645.
Between components 173 and 645.
Check for earth on the following connections:
●Connection code MAS between component 256 and earth MAS.
●Connection code MAS between component 268 and earth MAS.
●Connection code MF between component 173 and earth MF.
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 feeds and earths are correct, check the monolever (component code 209).
If the feeds and earths are not correct, check the condition and connection of the horn and lights switch
connector (component code 209) and the UCH 40-track connector PE2 (component code 645) (tabs bent,
broken or oxidised).
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_DF012P

87B-30
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF013
PRESENT
LEFT-HAND DIRECTION INDICATOR CIRCUIT
CC.0 : Short circuit to earth
C0.1 : Open circuit or short circuit to + 12 V
1.DEF : Bulb(s) not working or short circuit to + 12 V
NOTESConditions for applying the fault finding procedure to stored faults:
The fault appears after:
The left-hand indicator stalk is activated.
OR
Running AC022 Left-hand indicator.
Check that fuses F13 (30A) et F15 (5 A) are sound and correctly fitted in the passenger compartment fuse and
relay box (component code 1016).
Check the bulbs and condition of the bulb supports.
Replace the bulbs if necessary.
With command AC022 Left-hand indicator running, check for + 12 V on the following connection:
●Connection code 64C.
Between components 256 and 645.
Between components 268 and 645.
Between components 173 and 645.
Check the continuity on the following connection:
●Connection code 64C.
Between components 256 and 645.
Between components 268 and 645.
Between components 173 and 645.
Check for earth on the following connections:
●Connection code MAS between component 256 and earth MAS.
●Connection code MAS between component 268 and earth MAS.
●Connection code MF between component 173 and earth MF.
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 feeds and earths are correct, check the monolever (component code 209).
If the feeds and earths are not correct, check the condition and connection of the horn and lights switch
connector (component code 209) and the UCH 40-track connector PE2 (component code 645) (tabs bent,
broken or oxidised).
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF013P