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

87B-97
MR-413-X44-87B000$576.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
UCH
Vdiag No.: 44
87B
ET044
CONTINUED
Check the insulation, continuity and the absence of interference resistance on the following connections and
press the central door locking button to check the signal status on the following connections using the
oscilloscope (see signal status in test1 “Central door locking”):
●Connection code 64F between components 645 and 1391.
●Connection code 64Q between components 645 and 1391.
●Connection code 20M between components 1391 and 645.
●Connection code 20AW between components 1391 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.
On component 1391, with the lock button pressed, check the continuity between connections 20AW and MAN.
On component 1391, with the lock button released, check the insulation between connections 20AW and MAN.
If the fault is still present, replace the central door locking/hazard warning lights switch (component code 1391).
(See MR 411 84A, Controls - Signals, Hazard warning lights and central door locking:
Removal - Refitting).
AFTER REPAIRRepeat the conformity check from the start.
Carry out fault finding on the system.

87B-98
MR-413-X44-87B000$576.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
*RF: radio frequency.ET045
RF* SIGNAL RECEIVED
NOTESNo faults should be present or stored.
Only apply these checks if the status remains NO when a button on a key is pressed.
Special note:
This status enables you to check that the UCH is receiving the radio frequency signals
transmitted by a key that may or may not belong to the vehicle.
SPECIFICATIONSYES
NO
Does the status change to “YES” after one of the other buttons on the key is pressed?
YES
Replace the key.
NOCheck the operation of this status with another key for the New Twingo, Modus or Clio
III.
If the status changes to YES, check the condition of the first key's battery.
If the fault is still present, replace the key and allocate the key using command SC015
Key allocation.
If the status remains NO, consult the interpretation of DF054 Computer.
AFTER REPAIRRepeat the conformity check from the start.
Carry out fault finding on the system.
UCH_V44_ET045

87B-99
MR-413-X44-87B000$576.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
UCH
Vdiag No.: 44
87B
ET046
ENGINE IMMOBILISER
NOTESNo faults should be present or stored.
Apply the checks only if, the status remains ACTIVE after the ignition is switched off
and back on again under the following conditions.
SPECIFICATIONSACTIVE
INACTIVE
Check sure that ET239 Ignition switch position is + after ignition feed. Otherwise, refer to the interpretation of
this status.
Check that ET185 Key code received is YES.
Otherwise, refer to the interpretation of this status.
Check that ET181 Key allocated to vehicle is YES.
Otherwise, refer to the interpretation of this status.
Check that ET008 UCH blank is NO.
Otherwise, refer to the interpretation of this status.
Check that ET229 Injection immobiliser code is PROGRAMMED.
Otherwise, refer to the interpretation of this status.
Check that ET250 Injection is NOT PROTECTED.
Otherwise, refer to the interpretation of this status.
Carry out fault finding on the multiplex network (see 88B, Multiplexing).
If none of the computers on the vehicle has a malfunction and the statuses named in the notes are working
properly, contact Techline.
AFTER REPAIRRepeat the conformity check from the start.
Carry out fault finding on the system.
UCH_V44_ET046

87B -100
MR-413-X44-87B000$576.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
UCH
Vdiag No.: 44
87B
ET047
BRAKE PEDAL POSITION
NOTESNo faults should be present or stored.
SPECIFICATIONSPRESSED
RELEASED
Check the presence and condition of fuse F5 (15 A) in the passenger compartment fuse and relay box
(component code 1016).
Replace the fuse if necessary.
Check the condition and connection of the brake pedal switch 4-track connector (component code 160).
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.
On component 160, with the brake pedal depressed, check the continuity between connections AP10 and 5A
and the insulation of connections AP10 and 65A.
On component 160, with the brake pedal released, check the continuity between connections AP10 and 65A
and the insulation between connections AP10 and 5A.
Replace the switch if faulty. (See MR 411 mechanical systems 37A, Mechanical component controls, Brake
light switch: Removal - Refitting).
Check the condition and connection of connector PE1 of the UCH (component code 645) (tabs bent, oxidised,
broken).
Check for + 12 V (+ battery feed) on connection AP10 of the brake switch connector (component code 160).
If it is not correct, check the insulation, continuity and the absence of interference resistance of connection
AP10 between components 160 and 1016.
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.
AFTER REPAIRRepeat the conformity check from the start.
Carry out fault finding on the system.
UCH_V44_ET047

87B -101
MR-413-X44-87B000$576.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
UCH
Vdiag No.: 44
87B
ET047
CONTINUED
Check the insulation, continuity and the absence of interference resistance on the following connections:
●Connection code 5A between components 160 and 120.
●Connection code 65A between components 160 and 645.
●Connection code 65A between components 160 and 119.
●Connection code 65A between components 160 and 1094.
●Connection code AP10 between components 160 and 1016.
●Connection code 65A between components 160 and 172.
●Connection code 65A between components 160 and 173.
●Connection code 65A between components 160 and 639.
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 all these checks are in order and the fault is still present, contact Techline.
AFTER REPAIRRepeat the conformity check from the start.
Carry out fault finding on the system.

87B -102
MR-413-X44-87B000$576.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
UCH
Vdiag No.: 44
87B
ET061
TAILGATE OPENING REQUEST
NOTESNo faults should be present or stored.
IMPORTANT
On entry level vehicles (without central door locking), it is necessary to open the
tailgate mechanically using the key.
SPECIFICATIONSPRESENT
ABSENT
Check the following configuration:
–Check that LC093 Central door locking is With. Otherwise perform CF192 Central door locking.
Check the condition and connection of the tailgate lock connector (bent, broken tabs, etc.).
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 and tailgate lock are in perfect condition.
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.
When unlocking, check the signal status on component 1391 of the following connections using an oscilloscope
(refer to test1 “Central door locking”).
Tailgate lock:
Oscilloscope red test pin on connection 20S of
component 1322Oscilloscope 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 REPAIRRepeat the conformity check from the start.
Carry out fault finding on the system.
UCH_V44_ET061

87B -103
MR-413-X44-87B000$576.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
UCH
Vdiag No.: 44
87B
ET061
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.
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 Techline.
AFTER REPAIRRepeat the conformity check from the start.
Carry out fault finding on the system.

87B -104
MR-413-X44-87B000$576.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
UCH
Vdiag No.: 44
87B
Windscreen wiper fault:ET077
WIPER STALK POSITION
NOTESNo faults should be present or stored.
Check the following configurations:
–Check that LC094 "Wiper intermittent speed ring" displays "With". If not, carry
out CF191 "Wiper intermittent speed ring".
–Check that LC096 "Automatic wiper function" displays "With". If not, carry out
CF194 "Automatic wiper function".
SPECIFICATIONSINTERMITTENT
LOW SPEED
HIGH SPEED
Check the condition and connection of the 3-track windscreen wiper motor connector (component code 212)
(broken, bent, oxidised tabs).
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 that fuse F2 (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 UCH 40-track connector PE1 (component code 645) (tabs bent,
oxidised or broken).
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 insulation, continuity and the absence of interference resistance on the following connections:
Combined wiper-washer check:
●Connection code AP71 between components 145 and 1016.
●Connection code 14E (windscreen wiper timed control) between components 645 and 145.
●Connection code 14G (low speed windscreen wiper control) between components 645 and 145.
●Connection code 14H (high speed windscreen wiper control) between components 645 and 145.
●Connection code 36E (rear screen wiper timed control) between components 645 and 145.
●Connection code MAN or MAN between component 145 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 problem persists, replace the wiper stalk (component code 145). (See MR 411 mechanical systems 84A,
Controls - Signals, Wiper switch: Removal - Refitting).
AFTER REPAIRRepeat the conformity check from the start.
Carry out fault finding on the system.
UCH_V44_ET077