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

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-39
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF062
PRESENT
OR
STOREDSTARTER RELAY CONTROL CIRCUIT
CC.1 : Short circuit to + 12 volts
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after the starter is activated.
WARNING
When activating the starter, none of the gears must be engaged
(and the parking brake must be applied).
Check that fuse F9 (15 A) is sound and correctly fitted in the passenger compartment fuse and relay box
(component code 1016) and relay A (20 A) in the engine fuse and relay box (component code 597).
Replace the fuse if necessary.
Check the condition and connection of the UCH 24-track connector PE1 (component code 645) (tabs bent,
oxidised or broken).
Check the condition and connection of the starter relay 4-track black connector (tabs bent, oxidised or broken).
With the starter activated, check for + 12 V on connection 1B of component 645.
With the starter activated, check for + 12 V on connection AP29 of component 232.
Check the insulation, continuity and absence of interference resistance of the following connections:
Starter relay check:
●Connection code 1B between components 232 and 645.
●Connection code 1A between components 232 and 163.
●Connection code D between components 232 and 104.
●Connection code AP23 between components 232 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.
If the connections are correct, replace the starter relay (component code 232). (See MR 411 Mechanical
systems 16A, Starting - Charging, Starting system: Identification).
If the connections and the relay are correct, check the starter (component code 163). (See MR 411 Mechanical
systems 16A, Starting - Charging, Starting system: Identification).
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_DF062

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-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-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.

87B-71
MR-413-X44-87B000$480.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check87B
SUB-FUNCTION: ACCESS
* SR: Sunroof.
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
TailgateET061:Open tailgate
requestPRESENT
ABSENTIn the event of a fault, apply the
interpretation of status
ET061.
ET463:Door(s) or tailgateOPEN
CLOSEDIn the event of a fault, apply the
interpretation of status
ET463.
Locking/unlocking
buttonET186:Short press on door
closing buttonSignal can be
interpreted if the
ignition is switched off
(key removed from the
ignition switch).
ACTIVE = Remote
control door closing
button pressed for
longer than 2 seconds.
INACTIVE = Button not
pressed or pressed for
less than 2 seconds.In the event of a fault, refer to
the interpretation of status
ET186.
ET189:Long press on door
opening buttonACTIVE
INACTIVEIn the event of a fault, refer to
the interpretation of status
ET189.
Electric central locking
buttonET044:Central Locking
buttonDEPRESSED
RELEASEDIn the event of a fault, refer to
the interpretation of status
ET044.
One touch window /
SR*.ET087:One-touch window /
SR* authorisation.PRESENT
ABSENTIn the event of a fault, apply the
interpretation of status
ET087.
Locking commandAC004:Central door lockingThis command is used
to test whether central
door locking is workingIn the event of a fault, consult
the procedure for dealing
with command AC004.