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

87B-61
MR-413-X44-87B000$432.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF135
DF136
PRESENT
OR
STOREDRAIN DETECTOR
LIGHT SENSOR
1.DEF: Internal electronic fault
NOTESConditions for applying the fault finding procedure to stored faults:
If the fault reappears as present after:
Switching on the ignition, activating automatic headlight lighting by moving the control
stalk twice in quick succession as follows: control stalk (component code 209) to
position zero ΑΕ control stalk (component code 209) to side lights position.
Status ET114 "Wiper request from rain sensor" should be "Low speed" or "High
speed" when the water runs over the position of the rain/light sensor on the
windscreen or status ET115 "Request for lights to be switched on from light
sensor" should be "Present" when an opaque cover is placed over the rain/light
sensor.
Note:
If there is an open circuit on connection BPT, there will be a malfunction on the
electric window winders, on the rain/light sensor, on the interior lights and the boot
lighting.
Check that the vehicle has a rain/light sensor (component code 1415).
Check that the vehicle is configured with a rain/light sensor (component code 1415).
Check that LC044 Rain/light sensor is Present. If not, perform 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 position of supply fuses F2 (15 A), F8 (15 A), F19 (5 A), F27 (5 A) according to the
equipment, F29 (15 A) of the rain/light sensor (component code 1415) on the passenger compartment fuse and
relay box (component code 1016).
Replace the fuse if necessary.
Check the condition and connection of the 3-track connector of the rain/light sensor (component 1415) (tabs
bent, broken or oxidised).
Check the condition and connection of the PE2 connector of the UCH, (component code 645) (tabs bent,
oxidised, broken).
Check for + 12 V on connection BPT of component 1415.
Check for earth on connection MAM of component 1415.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF135 / UCH_V44_DF136

87B-62
MR-413-X44-87B000$432.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF135
DF136
CONTINUED
Check the continuity and insulation of the following connections:
●Connection code BPT between components 1415 and 645.
●Connection code 14S between components 1415 and 645.
●Connection code MAM between component 1415 and earth.
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 rain/light sensor (component code 1415). (See MR 411 Mechanical
85A, Wiping - Washing, Rain and light sensor: 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.

87B-63
MR-413-X44-87B000$432.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF137
PRESENT
OR
STOREDUCH - ALTERNATOR CONNECTION
CO : Open circuit
1.DEF : Dialogue disrupted
CC.0 : Short circuit
NOTESThe fault is declared present after:
Switching on the ignition, starting the engine and waiting 30 seconds.
Check that the engine type is entered correctly using the configuration reading "Check
that LC023 Engine Type is correct". Otherwise perform CF028 Engine type.
Customer complaint:
The battery warning light comes on when the fault appears and goes out 10 seconds
after the fault disappears.
Note:
For petrol vehicles, the fault can be linked to a fault on the anti-interference capacitor
if it is present.
Check the condition and connection of the 2-track connector of the alternator (component code 103) and
connector PE1 of component 645 (tabs bent, oxidised, broken).
Check that the voltage is between 5 V and 10 V on connection 2N between components 103 and 645.
Check the continuity and insulation of the following connections:
●Connection code 2N between components 103 and 645.
●Connection code BPDA between components 103 and 163.
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 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_DF135 / UCH_V44_DF136

87B-64
MR-413-X44-87B000$432.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF138
PRESENT
OR
STOREDALTERNATOR
1.DEF: Mechanical or electrical fault
2.DEF: Temperature fault
NOTESThe fault is declared present after:
Switching on the ignition, starting the engine and waiting 1 minute in the event of an
electrical or mechanical fault.
In the event of a temperature fault, run the engine until the engine cooling fans are
triggered.
Effect on system:
The fault is hidden for 3 seconds, the alternator voltage setpoint is 14.3 V and the on-
board network voltage is equal to 14.3 V if the alternator can still regulate. Regulation
resumes as soon as the fault disappears.
Effect on system:
The battery warning light comes on when the fault appears and goes out as soon as
the fault disappears.
Check for the presence, condition and fitting of the alternator belt. (See MR 411, Mechanical, 11A, Top and front
of engine, Accessories belt: Removal - Refitting).
Remove the accessories belt (MR411, Mechanical, 11A Top and front of engine, Accessories belt, Removal -
Refitting).
Check that the alternator pulley is not offset against its axis.
Check that the alternator pulley turns freely on its axis.
Check that the continuity and electrical insulation of the rotor coil is correct. Check that there is no sign of the rotor
overheating. (See MR 411, Mechanical 16A, Starting - Charging, Charging circuit: Check).
Perform a charging circuit test (see 80A, Battery).
If the fault is still present, replace the alternator (component code 103) (see MR 411, Mechanical 16A,
Starting - Charging, Alternator: Removal - Refitting).
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF138

87B-65
MR-413-X44-87B000$432.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF139
PRESENT
OR
STOREDCOURTESY LIGHT
CC.1: Short circuit to + 12 volts
NOTESThe fault is declared present after:
Opening at least one door.
OR
Running AC063 Switching the interior lights on and off.
Check the correct operation of status ET463 Door(s) or tailgate.
Check the condition and connection of the 6-track connector of the front interior lighting (component code 213)
and connector PE1 of component 645 (tabs bent, oxidised, broken).
Check for + 12 V on connection BPT of component 213.
Check the continuity and insulation of the following connections:
●Connection code BTP, between components 213 and 645.
●Connection code 13E between components 213 and 645.
●Connection code MAM between component 213 and earth MAM.
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 operation of the rabbet switches using ET463 Door(s) and tailgate.
If the supply, earths and connections are correct, replace the courtesy light (component code 213).
(See MR 411, Mechanical 81B, Interior lighting, courtesy light: 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_DF139

87B-66
MR-413-X44-87B000$432.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF140
PRESENT
OR
STOREDVOLTAGE REGULATION
1.DEF: Voltage too low
2.DEF: Voltage too high
NOTESThe fault is declared present after:
switching on the ignition and waiting 1 minute.
Note:
The on-board network voltage is less than 0.89 times the battery voltage setpoint.
The battery may be used to supply all of the energy. The alternator voltage setpoint is
fixed as soon as the fault appears. Once the fault has been confirmed, the alternator
voltage setpoint is 14.3 V. Regulation resumes as soon as the fault disappears.
Effect on system:
The battery warning light comes on when the fault appears and goes out as soon as
the fault disappears.
Run command AC130 Alternator regulation without any electrical consumers:
–Wait 20 seconds.
–For 10 seconds, the voltage of the alternator (component code 103) should be equal to 15 V +/- 0.2 V at the
battery terminals.
–Wait 20 seconds.
–For 10 seconds, the voltage of the alternator (component code 103) should be equal to 13 V +/- 0.2 V at the
battery terminals.
If the voltages are not correct (see 80A, Battery, and see 16A, Starting charging).
Run command AC130 Alternator regulation without any electrical consumers:
–Wait 20 seconds.
–For 10 seconds the voltage of the alternator (component code 103) should be equal to 15 V + /- 0.2 V at the
terminals of the alternator (between the + terminal of the alternator (component code 103) and the engine
earth).
–Wait 20 seconds.
– For 10 seconds the voltage of the alternator should be equal to 13 V + /- 0.2 V at the terminals of the
alternator (component code 103) (between the + terminal of the alternator (component code 103) and the
engine earth).
If the voltages are not correct, check the conformity of the engine earth.
Check the condition and connection of the 1-track connector of component 103 (tabs bent, oxidised, broken).
Check for + 12 V on connection BPDA of component 103.
Check the continuity and insulation of the following connections:
●Connection code BPDA between components 103 and 163.
●Connection code 2N between components 103 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 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_DF140

87B-67
MR-413-X44-87B000$432.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF212
PRESENT
OR
STOREDALARM CIRCUIT
CC.0: Short circuit to earth
NOTESIf the vehicle is fitted with an alarm:
Check that the vehicle is configured with an alarm (component code 442).
Check that LC126 Alarm is definitely With. Otherwise, perform CF229 Alarm.
Check the condition and presence of fuses F6 (15 A) and F46 (15 A). Replace if necessary.
Check the condition and connection of the horn connector (component code 442) (tabs bent, oxidised, broken).
Check the continuity and insulation of the following connections:
●Connection code 20M between components 442 and 645.
●Connection code 64Q between components 442 and 645.
●Connection code AP3 between components 442 and 260.
●Connection code BCP4 between components 442 and 260.
●Connection code MG between component 442 and earth.
●Connection code 80A between components 442 and 438.
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 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_DF212

87B-68
MR-413-X44-87B000$480.mif
V5
87B
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check
MAIN SCREEN
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
Electrical suppliesPR001:Battery voltage9 V < X < 16 VIn the event of a fault, run fault
finding on the charging
circuit (see 80A, Battery).
Ignition switch positionET239:Ignition switch
position+ after ignition feed.In the event of a fault, refer to
the interpretation of status
ET239.
Brake pedalET047:Brake pedal positionDEPRESSED
RELEASEDIn the event of a fault, refer to
the interpretation of status
ET047.
Engine operation.ET142:Engine operating
phaseSTOPPED
STARTING
RUNNING
STALLEDIn the event of a fault, consult
the interpretation of status
ET142.
Engine speedPR025:Engine speed0 rpmIn the event of a fault, run fault
finding on the injection
system (see 13B, Diesel
injection or 17B, Petrol
injection).
Vehicle speedPR008:Vehicle speed0 mphIn the event of a fault, run fault
finding on the ABS system
(see 38C, Anti-lock braking
system).
UCH_V44_CCONF
MR-413-X44-87B000$480.mif
UCH
Vdiag No.: 44

87B-69
MR-413-X44-87B000$480.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check87B
SUB-FUNCTION: PROTECTION
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
Engine
immobiliserET046:Engine immobiliserINACTIVE = Vehicle
unprotected, ready to start.
ACTIVE = Vehicle protected,
starting impossible.In the event of a fault, refer to
the interpretation of status
ET046.
And (see 87B, Passenger
compartment
connection unit).
ET008:blank UCHYES = If the UCH is blank.
NO = If the UCH has been
programmed with an
immobiliser code.In the event of a fault, refer to
the interpretation of status
ET008.
And (see 87B, Passenger
compartment
connection unit).
KeyET185:Key code receivedYES = If the UCH has received
the immobiliser code from the
key.
NO = If the UCH does not
receive the immobiliser code
from the key.In the event of a fault, refer to
the interpretation of status
ET185.
And (see 87B, Passenger
compartment
connection unit).
ET181:Key allocated to the
vehicleYES = The key is allocated to
the vehicle.
NO = The key is not allocated
to the vehicle.In the event of a fault, refer to
the interpretation of status
ET181.
And (see 87B, Passenger
compartment
connection unit).

87B-70
MR-413-X44-87B000$480.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check87B
SUB-FUNCTION: PROTECTION (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
KeyET045:Radio frequency
signal receivedYES = When the UCH receives
a radiofrequency signal.
NO = When the UCH does not
receive a Radiofrequency
signal.In the event of a fault, refer to
the interpretation of status
ET045.
ET193:Radiofrequency
signal from a key
allocated to the
vehiclePRESENT =
Reception of a signal
Radiofrequency signal from a
key allocated to the vehicle.
ABSENT =
No reception of signal
Radiofrequency or signal
Radiofrequency signal from a
key not allocated to the vehicleIn the event of a fault, refer to
the interpretation of status
ET193.
ET240:Key frequency (in
MHz)433
NONEIf NONE, refer to the
interpretation of status
ET240.
PR056:Number of keys
allocatedX ≤ 4 key(s)In the event of a fault, refer to
the interpretation of fault
PR056.
InjectionET229:Injection immobiliser
codePROGRAMMED
NOT PROGRAMMED
UNDETERMINEDIn the event of a fault, consult
the interpretation of status
ET229.
ET250:InjectionNOT PROTECTED
PROTECTEDIn the event of a fault, refer to
the interpretation of status
ET250.
(See 17B, Petrol Injection,
Conformity check,
Protection) or (see 13B,
Diesel Injection, Conformity
check, Protection).
Starter actuatorET239:Ignition switch
positionINACTIVE
+ ACCESSORIES
+ after ignition feed.
+ START FEEDIn the event of a fault, refer to
the interpretation of status
ET239.