RENAULT TWINGO 2009 2.G Electrical Equipment - Parking Distance Control Workshop Manual

Electrical equipment
"The repair procedures given by the manufacturer in this document are based on the
technical specifications current when it was prepared.
The procedures may be modified as a result of changes introduced by the
manufacturer in the production of the various component units and accessories from
which his vehicles are constructed."
V2
All rights reserved by Renault s.a.s.
Edition Anglaise
Copying or translating, in part or in full, of this document or use of the service part
reference numbering system is forbidden without the prior written authority of
Renault s.a.s.
© Renault s.a.s.
V2 MR-413-X44-87F000$000_engTOC.mif
PARKING DISTANCE CONTROL
Vdiag No.: 04 08
Fault finding - Introduction 87F - 2
Fault finding - List and location of components 87F - 7
Fault finding - Operating diagram 87F - 8
Fault finding - Function 87F - 9
Fault finding - Role of components 87F - 10
Fault finding - Replacement of components 87F - 11
Fault finding - Configurations and programming 87F - 12
Fault finding - Fault summary table 87F - 13
Fault finding - Interpretation of faults 87F - 14
Fault finding - Conformity check 87F - 26
Fault finding - Status summary table 87F - 28
Fault finding - Interpretation of statuses 87F - 29
Fault finding - Parameter summary table 87F - 34
Fault finding - Interpretation of parameters 87F - 35
Fault finding - Customer complaints 87F - 37
Fault finding - Fault Finding Chart 87F - 38
87F
MR-413-X44-87F000$000_engTOC.mif

PARKING DISTANCE CONTROL
Fault finding - Introduction
87F
87F - 2V2 MR-413-X44-87F000$066_eng.mif
187F
Vdiag No.: 04 08PARKING DISTANCE CONTROL
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 + multiplex line sensor
Special tooling required
3. RECAP
To run fault finding on the vehicle computers, switch on the ignition.
Depending on the type of vehicle equipment, proceed as follows:
To cut off the + after ignition feed, proceed as follows:Vehicle(s): New Twingo
Function concerned: Parking distance controlComputer name: Parking proximity sensor
Vdiag No.: 04 08
Special tooling required
Multimeter
Elé. 1681 Universal bornier
For vehicles with radio frequency remote control/key,
switch on the ignition with the key.
For vehicles with key/radio frequency remote control,use the key to switch off the ignition.
AAP_V04_PRELI/AAP_V08_PRELI
MR-413-X44-87F000$066_eng.mif

PARKING DISTANCE CONTROL
Fault finding - Introduction
87F
87F - 3V2 MR-413-X44-87F000$066_eng.mif
Vdiag No.: 04 08
Faults
Faults are declared as either present or stored (depending on whether they appeared in a certain context and have
disappeared since, or whether they remain present but have not been diagnosed within the current context).
The present or stored status of faults should be taken into consideration when the diagnostic tool is used following
the + after ignition supply being switched on (without operating the system components).
For a present fault, apply the procedure described in the Interpretation of faults section.
For a stored fault, note the faults displayed and apply the instructions in the Notes section.
If the fault is confirmed when the instructions in the Notes section are applied, the fault is present. Deal with the fault
If the fault is not confirmed, check:
–the electrical lines which correspond to the fault,
–the connectors for these lines (for oxidation, bent pins, etc.),
–the resistance of the component detected as faulty,
–the condition of the wires (melted or split insulation, wear).
Conformity check
The aim of the conformity check is to check data that does not produce a fault on the diagnostic tool because the
data is inconsistent. Therefore, this stage is used to:
–carry out fault finding on faults that do not have a fault display, and which may correspond to a customer
complaint.
–check that the system is operating correctly and that there is no risk of a fault recurring after repairs.
This section gives the fault finding procedures for statuses and parameters and the conditions for checking them.
If a status is not behaving normally or a parameter is outside the permitted tolerance values, consult the
corresponding fault finding page.
Customer complaints - Fault finding chart
If the test with the diagnostic tool is OK but the customer complaint is still present, the fault should be processed by
customer complaints.
A synopsis of the general procedure to follow is provided on the following page in the
form of a flow chart.

PARKING DISTANCE CONTROL
Fault finding - Introduction
87F
87F - 4V2 MR-413-X44-87F000$066_eng.mif
Vdiag No.: 04 08
4. FAULT FINDING PROCEDURE
Perform a pre-diagnostic on the
system
Print the system fault finding log
(available on CLIP and in the
Workshop Repair Manual or
Technical Note)
Connect CLIP
no
Dialogue with
computer?
yes
Read the faults
no
Faults
present
yes
Deal with present faults
Deal with stored faults
no
The cause is
still presentFault
solved
yes
Refer to ALP No. 1
Conformity check
no
The cause is
still presentFault
solved
Use fault finding charts
(ALPs)
no
The cause is
still presentFault
solved
Contact the Techline with the
completed fault finding log

PARKING DISTANCE CONTROL
Fault finding - Introduction
87F
87F - 5V2 MR-413-X44-87F000$066_eng.mif
Vdiag No.: 04 08
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.

PARKING DISTANCE CONTROL
Fault finding - Introduction
87F
87F - 6V2 MR-413-X44-87F000$066_eng.mif
Vdiag No.: 04 08
5. FAULT FINDING LOG
You will always be asked for this log:
●when requesting technical assistance from Techline,
●for approval requests when replacing parts for which approval is mandatory,
●to be attached to monitored parts for which reimbursement is requested. The log is needed for warranty
reimbursement, and enables better analysis of the parts removed.
6. SAFETY ADVICE
Safety rules must be observed during any work on a component to prevent any damage or injury:
–check the battery voltage to avoid incorrect operation of computer functions,
–use the appropriate tools, IMPORTANTIMPORTANT
Any fault on a complex system requires thorough fault finding with the appropriate tools. The
FAULT FINDING LOG, which should be completed during the procedure, enables you to keep
track of the procedure which is carried out. It is an essential document when consulting the
manufacturer.
IT IS THEREFORE MANDATORY TO FILL OUT A FAULT FINDING LOG EACH TIME FAULT FINDING IS
CARRIED OUT.

PARKING DISTANCE CONTROL
Fault finding - Introduction
87F
87F - 7V2 MR-413-X44-87F000$132_eng.mif
Vdiag No.: 04 08PARKING DISTANCE CONTROL
1Parking distance control computer
2Parking distance control switch
3Buzzer
4Rear right-hand exterior sensor
5Rear right-hand interior sensor
6Rear left-hand exterior sensor
7Rear left-hand interior sensorENGINE WIRING
FRONT OF ENGINE & ADDITIONAL HEADLIGHTS WIRING
DOOR WIRING
INTERIOR LIGHTS WIRING
PASSENGER COMPARTMENT WIRING
REAR BUMPER WIRING
TAILGATE WIRING
MR-413-X44-87F000$132_eng.mif

PARKING DISTANCE CONTROL
87F
87F - 8V2 MR-413-X44-87F000$198_eng.mif
Vdiag No.: 04 08PARKING DISTANCE CONTROL
Fault finding - Operating diagram
1: + after ignition feed
2: switch
3: switch warning light
4: trailer attachment
5: reversing signal
6: K line
3
2
1
4
5
6
COMPUTER
26969
MR-413-X44-87F000$198_eng.mif

PARKING DISTANCE CONTROL
87F
87F - 9V2 MR-413-X44-87F000$220_eng.mif
Vdiag No.: 04 08PARKING DISTANCE CONTROL
Fault finding - Function
DEACTIVATING THE SYSTEM
–The parking proximity sensor system can be deactivated in two ways:
–Temporary deactivation: briefly pressing (1 second) the parking distance control switch on the instrument panel
deactivates the system (the red warning light on the switch comes on). The function can be switched on again by
pressing briefly for a second time (the red indicator light on the switch goes out) or by switching the ignition off and
back on.
–Permanent deactivation: The parking distance control system can be deactivated for a longer period by
pressing and holding (for approximately 3 seconds) the parking distance control switch on the instrument panel
(the red warning light on the switch comes on). The function can be switched on again only by pressing and
holding the switch again (the red warning light on the switch goes out).
Fault finding:
In the event of a system fault, the driver will be alerted by a 5-second continuous warning sound with a
different pitch to the detection signal.Note:
The diagnostic tool statuses can be used to determine the function status (ready, detecting, suspended or
deactivated) by using status ET003 Parking distance control function (see Conformity check or the relevant
status interpretation).
MR-413-X44-87F000$220_eng.mif

PARKING DISTANCE CONTROL
87F
87F - 10V2 MR-413-X44-87F000$240_eng.mif
Vdiag No.: 04 08PARKING DISTANCE CONTROL
Fault finding - Role of components
Description of operation
The system consists of four sensors built into the rear bumper, a computer and a buzzer.
The system assists the driver during parking manoeuvres by warning of any obstacles to the rear of the vehicle.
The sensors and the computer calculate the distance between the vehicle and any obstacles.
The ultrasonic sensors are able to detect different obstacles such as:
–A wall.
–A post.
–A fence.
–A square section tube.
–Runner.
The sensors operate over a distance range from between 26 to 30 cm minimum and 150 cm maximum. If an
obstacle is less than 25 cm away, the signal received (after coming into contact with the obstacle) will be disrupted
by the signal emitted by the sensor, therefore, it is possible that measurements made at this distance will be incorrect
The driver is informed of the distances by a buzzer.
The system only works when the vehicle is in reverse gear. Activation is indicated by a brief 0.5 second activation
sound.
The buzzer is activated when the vehicle is 150 cm from the obstacle. As the distance diminishes, the frequency of
the buzzer increases. When the distance reaches 20 - 30 cm, the buzzer becomes continuous.
–The system can only be activated with + after ignition feed and reverse gear engaged.
MR-413-X44-87F000$240_eng.mif