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

87B-33
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF040
PRESENT
OR
STOREDREAR SCREEN WIPER PARK POSITION
1.DEF : Open circuit or short circuit to earth
NOTESConditions for applying the fault finding procedure to stored faults:
The fault appears after:
The ignition is switched off and back on again and the rear wipers are operated using
the wiping stalk.
OR
Activating AC007 Rear screen wipers.
This fault may appear if the rear screen wiper motor (component code 211) is forced (e.g.: used on a dry screen,
snow on the screen, etc.).
Check that fuse F36 (15 A) is sound and correctly fitted to the passenger compartment fuse and relay box
(component code 1016).
Replace the fuse if necessary.
Check the condition and connection of the 3-track rear screen wiper motor connector (component code 211)
(broken, bent, oxidised tabs).
Activate the rear screen wiper, check for + 12 V on connection 36A of the rear screen wiper
motor connector (component code 211).
Check that the earth on connection MYH of the rear screen wiper motor connector (component code 211) is in
perfect condition.
Check the condition and connection of the UCH 40-track PE1 connector (component code 645) (tabs broken,
bent or oxidised) and the 3-track rear screen wiper motor connector (component code 211).
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.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF040

87B-34
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF040
CONTINUED
Check the insulation, continuity and the absence of interference resistance on the following connections:
Combined wiper-washer check:
●Connection code AP71 between components 1016 and 145.
●Connection code 36E (rear screen wiper timed control) between components 645 and 145.
●Connection code MAN or MAM between component 145 and the earth MAN (left-hand drive) or MAM
(right-hand drive).
Rear screen wiper motor check:
●Connection code 36C between components 211 and 645.
●Connection code 36A between components 211 and 1016.
●Connection code MYH between component 211 and earth MYH.
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 fitting and activate the supply to the rear screen wiper motor (component code 211).
Repair if necessary or replace the motor if it is faulty. (see MR 411, Mechanical systems, 85A, Washing -
wiping, Rear screen wiper motor: Removal - Refitting)
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.

87B-35
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF041
PRESENT
OR
STOREDHEATED REAR SCREEN INDICATOR LIGHT CIRCUIT
CC.1 : Short circuit to + 12 volts
NOTESApply this fault only to versions without heating or with manual climate control.
Conditions for applying the fault finding procedure to stored faults:
The fault appears after:
The ignition is switched of f and back on again and the rear screen de-icer is
requested.
OR
Running command AC019 Heated rear screen indicator light.
Check that fuses F29 (15 A) and F42 (10 A) are sound and correctly fitted in the passenger compartment fuse
and relay box (component code 1016) and/or heating.
Replace the fuse(s) if necessary.
Check the air conditioning control panel black 9-track connector, (component code 319) (bent, oxidised or
broken tabs).
Check that the earth on connection NAM of the manual air conditioning control panel black 9-track connector is
in perfect condition.
Check for + 12 V on connection LPD (by running command AC019 Heated rear screen indicator light) of the
manual air conditioning control panel black 9-track connector.
Check for + 12 V accessories feed on connection SP2 of the manual air conditioning control panel black 9-track
connector.
Check that the rear screen de-icing indicator comes on when activating command AC019 Heated rear screen
indicator.
Check the PE1 40-track connector of the UCH, component code 645 (tabs bent, oxidised, broken).
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF041

87B-36
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF041
CONTINUED
Check the insulation, continuity and the absence of interference resistance on the following connections:
●Connection code 38ES between components 319 and 645.
●Connection code 38LP between components 319 and 645.
●Connection code 38LQ between components 319 and 645.
●Connection code 15A between components 319 and 645.
●Connection code 15M between components 319 and 645.
●Connection code LPD and SP2 between components 319 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 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.

87B-37
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF042
PRESENT
OR
STOREDAIR CONDITIONING WARNING LIGHT CIRCUIT
CC.1 : Short circuit to + 12 V
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after the ignition is switched on and following an air
conditioning activation request with all the lights switched off.
Check that the type of air conditioning of the vehicle (equipment level) corresponds with the UCH configuration:
Check that LC013 Air conditioning type corresponds with the vehicle equipment level. Otherwise carry out
CF019 Air conditioning type.
Check that fuses F29 (15A) and F42 (10 A) are sound and correctly fitted in the passenger compartment fuse and
relay box (component code 1016).
Replace the fuse(s) if necessary.
Check the air conditioning control panel black 9-track connector, (component code 319) (bent, oxidised or
broken tabs).
Check that the earth on connection NAM of the manual air conditioning control panel black 9-track connector is
in perfect condition.
Check for + 12 V accessories feed on connections LPD and SP2 of the manual air conditioning control panel
black 9-track connector.
Check the PE1 and PE2 40-track connectors of the UCH, (component code 645) (tabs bent, oxidised, broken).
Check the insulation, continuity and absence of interference resistance of the following connections:
●Connection code 15A between components 319 and 645.
●Connection code 38ES between components 319 and 645.
●Connection code 38LP between components 319 and 645.
●Connection codes LPD and SP2 between components 319 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 fault is still present, replace the air conditioning control panel (component code 319) (see MR 411
Mechanical systems 62B, Climate control, Control panel: Removal - Refitting).
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_DF042

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-40
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
* SR: SunroofDF065
PRESENT
OR
STORED
ELECTRIC WINDOWS AUTHORISATION CONNECTION
CC.1 : Short circuit to + 12 volts
NOTESConditions for applying fault finding procedures to stored faults:
The fault is declared present after:
The ignition is switched of f and back on again after pressing the driver's one-touch
electric window switch or sunroof switch if the vehicle is fitted with a sunroof.
For vehicles fitted with sunroof (component code 1578):
Check that the vehicle is configured with One-touch window(s) S.R*. :
Check that LC070 One-touch window(s) S.R. is With. Otherwise use CF173
One-touch window(s) S.R.
Check the condition and connection of the UCH 24-track connector PE2 (component code 645) (tabs bent,
oxidised or broken).
Check the condition and connection of the driver's electric window motor 6-track connector (bent, oxidised,
broken tabs).
If there is an electric sunroof, check that fuse F26 (20 A) is sound and correctly fitted in the passenger
compartment fuse and relay box (component 1016).
Replace the fuse if necessary.
If there is an electric sunroof, check the condition and connection of the A-pillar 4-track connector 339 and of
sunroof computer connector AA (tabs bent, oxidised, broken).
Check the insulation, continuity and absence of interference resistance of the following connections:
●Connection code 21K between components 203 and 645.
●Connection code MAM between component 203 and earth MAM.
For vehicles fitted with a sunroof:
●Connection code 21K between components 1579 and 645.
●Connection code MAM between component 1579 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.
If the fault is still present, switch on the ignition and check for 0 V on connection 21K if no (see 87D
electric windows - Sunroof).
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF065