wiring RENAULT TWINGO 2009 2.G Electrical Equipment - Access Safety Workshop Manual

82D-2
MR-413-X44-82D000$100_eng.mif
V1
82D
ACCESS/SAFETY
Fault finding - Introduction
1. SCOPE OF THIS DOCUMENT
This document presents the fault finding procedure applicable to all computers with the following specifications:
2. PREREQUISITES FOR FAULT FINDING
Documentation type
Fault finding procedures (this manual):
–Assisted fault finding (integrated into the diagnostic tool), Dialogys.
Wiring Diagrams:
–Visu-Schéma (CD-ROM), paper.
Type of diagnostic tools
–CLIP
Special tooling required
3. REMINDERS
To run fault finding on the vehicle's computers, switch on the ignition in fault finding mode (+ after ignition feed).Vehicle(s): New TWINGO
Function concerned: Access/Safety
Special tooling required
Multimeter
Elé. 1681 Universal bornier
MR-413-X44-82D000$100_eng.mif

82D-5
MR-413-X44-82D000$100_eng.mif
V1
ACCESS/SAFETY
Fault finding - Introduction82D
4. FAULT FINDING PROCEDURE (CONTINUED)
Wiring check
Fault finding problems
Disconnecting the connectors and/or manipulating the wiring harness may temporarily remove the cause of a fault.
Electrical measurements of voltage, resistance and insulation are generally correct, especially if the fault is not
present when the analysis is made (stored fault).
Visual inspection
Look for damage under the bonnet and in the passenger compartment.
Carefully check the fuses, insulators and wiring harness routing.
Look for signs of oxidation.
Tactile inspection
While manipulating the wiring harness, use the diagnostic tool to note any change in fault status from stored to
present.
Make sure that the connectors are properly locked.
Apply light pressure to the connectors.
Twist the wiring harness.
If there is a change in status, try to locate the source of the fault.
Inspection of each component
Disconnect the connectors and check the appearance of the clips and tabs, as well as the crimping (no crimping on
the insulating section).
Make sure that the clips and tabs are properly locked in the sockets.
Check that no clips or tabs have been dislodged during connection.
Check the clip contact pressure using an appropriate model of tab.
Resistance check
Check the continuity of entire lines, then section by section.
Look for a short circuit to earth, to + 12 V or to another wire.
If a fault is detected, repair or replace the wiring harness.

82D-7
MR-413-X44-82D000$200_eng.mif
V1
82D
ACCESS/SAFETY
Fault finding - List and location of components
1UCH
2Passenger Compartment Fuse and Relay Box
3One touch window/anti-pinch module
4Transponder ring
5Rain/light sensor & interior temperature sensor
6Sunroof/anti-pinch
7Tailgate lock
8Door lockENGINE HARNESS
FRONT ENGINE WIRING & ADDITIONAL HEADLIGHTS
DOOR WIRING
CEILING WIRING
PASSENGER COMPARTMENT WIRING
REAR BUMPER WIRING
TAILGATE WIRING
MR-413-X44-82D000$200_eng.mif

82D-33
MR-413-X44-82D000$900_eng.mif
V1
ACCESS/SAFETY
Fault finding - Fault Finding Chart82D
ALP 20
CONTINUED
Carry out a locking/unlocking request with a different
key belonging to the same vehicle.
Did the switch work?
NO
With the + after ignition switched on, carry out a
locking/unlocking request on the vehicle via the
electric door locking switch.
Did the switch work?
NO
Check the wiring between the door locks and
the UCH. Carry out the necessary repairs.
YESCheck the charge of the key battery
Check the condition of the first key and its
contacts.
Replace the battery or the key if necessary.
YESUse the diagnostic tool to check the statuses
associated with pressing the buttons on the
key.
If the fault is still present, contact Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.

82D-34
MR-413-X44-82D000$900_eng.mif
V1
ACCESS/SAFETY
Fault finding - Fault Finding Chart82D
Vehicle which is equipped with deadlocking function:
ALP 21 Tailgate opening fault
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
In particular, check the operation of statuses ET463 "Door(s) or tailgate", ET157
"Tailgate opening request" and command AC061 "Tailgate opening".
Check the following conformities:
CF009 Deadlocking with LC003 Deadlocking.
CF108 "Renault Anti-Intruder Device" with LC040 "Renault Anti-Intruder
Device".
CF192 Central door locking with LC093 Central door locking.
Check that DF133 "Deadlocking motor(s) circuit"is not present.
The vehicle and the tailgate must be unlocked.
If the tailgate is already open, the tailgate opening
function is disabled.
Check the wiring between the tailgate lock and
the UCH.
Carry out the necessary repairs.
Remove the lock, close the lock by sliding a
screwdriver into it; test the lock by connecting an
earth and a +battery feed to the motor terminals
(for less than one second).
If the lock still does not work, replace the lock.
If the fault is still present, contact Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP21

82D-35
MR-413-X44-82D000$900_eng.mif
V1
ACCESS/SAFETY
Fault finding - Fault Finding Chart82D
Vehicle which is not equipped with deadlocking function:
ALP 21
CONTINUED 1
Check the following conformity:
CF192 Central door locking with LC093 Central door locking.
Check that fuses F14 (20 A) are sound and correctly fitted in the passenger compartment fuse and relay box
(for vehicles equipped with deadlocking function).
Replace the fuse if necessary.
Check the condition and connection of the PE1, PE2 and PE3 connectors of the UCH (tabs bent, broken,
oxidised etc.).
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.
Check the condition and connection of the electric central door locking connectors for the driver's and passenger's
doors and the tailgate (tabs bent, oxidised, bent etc.).
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.
Lock component 1391 to check the status of the signal on the following connections using an oscilloscope
(refer to test 1 "Central door locking" (See 87B, Passenger compartment connection unit, test 1)).
Tailgate locks:
Oscilloscope red test pin on
connection 20S of component 1322Oscilloscope black test pin on connection MHY 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 REPAIRCarry out a complete check with the diagnostic tool.

82D-36
MR-413-X44-82D000$900_eng.mif
V1
ACCESS/SAFETY
Fault finding - Fault Finding Chart82D
ALP 21
CONTINUED 2
Checking the tailgate electric central locking function:
Check the insulation, continuity and the absence of interference resistance on the following connections:
Tailgate lock:
●Connection code 20S between components 1322 or 645.
●Connection code 86H between components 1322 or 645.
●Connection code MYH between component 1322 and earth MYH.
For manual gearbox:
●Connection code 86H between components 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.
If the feeds and the tailgate electric central locking connections are correct, check the tailgate switch, the tailgate
locking switch (with Neman) and the central door locking/warning switch.
Check the insulation, continuity and the absence of interference resistance on the following connections:
Checking the tailgate switch and the tailgate locking switch (with Neman):
●Connection code 20WB between components 560 and 1733.
●Connection code MYH between component 560 and earth MYH.
●Connection code 20G between components 1733 and 645.
Check the central door locking/warning switch:
●Connection code 20AW between components 645 and 1391.
●Connection code 20M between components 645 and 1391.
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 component concerned (tailgate switch, tailgate locking switch or central
door locking/warning switch.
If the fault is still present, contact Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.

82D-43
MR-413-X44-82D000$900_eng.mif
V1
ACCESS/SAFETY
Fault finding - Fault Finding Chart82D
ALP 25
CONTINUED 2
Carry out complete fault finding of the injection system (see 13B, Diesel injection and see also 17B, Petrol
injection) (See MR 411 Mechanical systems, 13A, Fuel supply) (see MR 411 Mechanical systems, 13C,
Preheating) (See MR 411 Mechanical systems, Ignition).
If the fault is still present, contact Techline.
Check that there are no powerful electromagnetic wave sources (CB (Citizen Band), mobile phone in close
proximity to the transponder ring).
Switch the ignition off and then on again.
Check that fuse F8 (15 A) is sound and fitted in the passenger compartment fuse and relay box.
Replace the fuse if necessary.
Check the condition and connection of the transponder ring 4-track connector (bent, oxidised, broken tabs).
Repair if necessary.
Check that the earth on connection NAM of the transponder aerial connector is perfect.
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.
Check for + after ignition feed on connection AP43 of the transponder aerial connector.
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.
Check the condition and connection of the 40-track UCH connector PE1 (tabs bent, broken, oxidised, etc.).
Repair if necessary.
Check the insulation, continuity and absence of interference resistance of the following connections:
●Connection code 80Y between components 1618 and 645.
●Connection code 80X between components 1618 and 645.
●Connection code AP43 between components 1618 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 but the fault is still present, replace the transponder ring.
AFTER REPAIRCarry out another fault finding check on the system.
1
2