warning RENAULT TWINGO RS 2009 2.G Electrical Equipment - Rev Counter Instrument Workshop Manual

83E-2
MR-413-X44-83E000$084_eng.mif
V2
83E
REV COUNTER INSTRUMENT
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
Procedure
To run fault finding on the vehicle computers, switch on the ignition. Proceed as follows:
–turn the ignition key to APC,
–connect the diagnostic tool and perform the required operations.
To cut off + after ignition feed, proceed as follows:
–disconnect the diagnostic tool,
–turn the ignition key to OFF,
–verify that the forced + after ignition feed has been switched off by checking that the computer warning lights on
the control panel have gone out. Vehicle(s): New Twingo
Function concerned: Rev counterComputer name: Rev counter
3 levels:
–Petrol version
–Diesel version
–Sport version
Vdiag no.: 04
Special tooling required
Multimeter
Elé. 1681 Universal bornier
CPT_V04_PRELI

Vdiag No.: 04
MR-413-X44-83E000$084_eng.mif

83E-8
MR-413-X44-83E000$252_eng.mif
V2
83E
REV COUNTER INSTRUMENT
Fault finding - Role of components
–Rev counter: engine speed signal. The engine speed signal is sent to the rev counter by the injection computer on
the multiplex network.
–Electronic stability program (ESP) indicator light:
The ESP indicator light comes from the ABS and is sent by the multiplex network.
The ESP indicator light is an amber coloured light.
The indicator light is tested for 3 seconds by the rev counter when the + after ignition feed is switched on (only if the
ESP function is present on the vehicle and programmed on the Renault production line or in After-Sales).
This indicator light will only be activated if the configuration LC002 ELECTRONIC STABILITY CONTROL (ESP) is
WITH.
The electronic stability program indicator light gives information about the following statuses of the ESP system:
–Lighting function - dimmer lighting:
The rev counter lights up in accordance with the illumination of the lights and the instrument panel.
The dimmer lighting function is controlled by the instrument panel using the control located under the steering wheel.
The request is sent to the rev counter by the multiplex network. The rev counter varies the light intensity in
accordance with the signal received.ESP system statusRev counter Instrument panel
ESP warning light Service warning light
ESP operational Warning light not lit Warning light not lit
ESP faulty Warning light lit Warning light lit
ESP off (activation/
deactivation by successively
pressing the ESP button)Warning light lit Warning light not lit
ESP operational
(no programming)Indicator light flashes at 8 Hz Warning light not lit
ESP regulation without fault Indicator light flashes at 8 Hz Warning light not lit
ESP regulation with fault Warning light lit Warning light lit
ESP calibration (fault finding
mode)Indicator light flashes at 2 Hz Warning light not lit
Vdiag No.: 04
MR-413-X44-83E000$252_eng.mif

83E-9
MR-413-X44-83E000$336_eng.mif
V2
83E
REV COUNTER INSTRUMENT
Fault finding - Operating diagram
1 – + after ignition feed Multiplex connections
2 – + battery feed A – Rev counter
3 – Side light B – Diagnostic tool
4 – Earth C – Instrument panel
5 – Rev counter computer D – Injection
6 – Backlighting E – ABS/ESP
7 – Lighting dimmer
8 – Rev counter needle
9 – ESP warning light

Vdiag No.: 04
MR-413-X44-83E000$336_eng.mif

83E-10
MR-413-X44-83E000$420_eng.mif
V2
83E
REV COUNTER INSTRUMENT
Fault finding - Function
System outline
The system is composed solely of an offset rev counter on the instrument panel facing the driver, which incorporates
its own computer.
The function of the “rev counter” system' is:
●To display the "engine speed" signal image in rpm sent by the injection computer on the multiplex
network.
●To identify the traction control system warnings on equipped vehicles.
Depending on the configuration, when the lights are switched on, the rev counter backlighting may vary depending
on the instrument panel backlighting dimmer request, the light signal is sent on the multiplex network by the
instrument panel.

Vdiag No.: 04
MR-413-X44-83E000$420_eng.mif