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

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 - 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
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