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

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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
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Special tooling required
Multimeter
Elé. 1681 Universal bornier
CPT_V04_PRELI

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Fault finding - Introduction

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4. FAULT FINDING PROCEDURE
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.

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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
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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

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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.

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REV COUNTER INSTRUMENT
Fault finding - Configuration
REV COUNTER CONFIGURATION
After configuring the rev counter, enter the vehicle identification number (VIN) using the command VP001 ENTER
VIN.Summary of available configuration readings
LC003: DIMMER LIGHTING
–YES
–NO
LC002: ELECTRONIC STABILITY CONTROL (ESP)
–WITH
–NONE
LC001: OVERSPEED INDICATOR LIGHT
–ABSENT
–PRESENT
Summary of available configurations
CF003: DIMMER LIGHTING
–YES
–NO
CF002: ELECTRONIC STABILITY CONTROL
–WITH
–NONE
CF001: OVERSPEED INDICATOR LIGHT
–ABSENT
–PRESENT

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REV COUNTER INSTRUMENT
Fault finding - Conformity check
MAIN SCREEN
DISPLAY SUB-FUNCTION
NOTESOnly check conformity after a full check with the diagnostic tool. The values shown in
this conformity check are given as a guide.
Application conditions: Vehicle under + after ignition feed.
FunctionParameter or state checked
or actionDisplay and notes Fault finding
Rev counter
lightingET002:Side lights controlSide
lights onACTIVE
In the event of a fault, consult the
interpretation of status ET002
SIDE LIGHTS CONTROL. Side
lights offINACTIVE
FunctionParameter or state checked
or actionDisplay and notes Fault finding
DisplayAC001:Rev counter
indicator lightsActivating this lights up
all of the indicator lights
integrated
in the rev counter.Carry out fault finding on the
multiplex network (see 88B,
Multiplexing).
If the fault is still present, contact
the techline.
AC002:Back
lighting + needleActivating this lights up
the back of the
rev counter and needle.Carry out fault finding on the
multiplex network (see 88B,
Multiplexing).
If the fault is still present, contact
the techline.
AC003:Rev counter
needleActivating this moves the
needle: Position 0 then
mid-range position and
maximum value position.Carry out fault finding on the
multiplex network (see 88B,
Multiplexing).
If the fault is still present, contact
the techline.
CPT_V04_CCONF
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Fault finding - Conformity check

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CONFIGURATION CHECK
ESP configuration check depending on equipment:
Check if the vehicle is fitted with the ESP system (ESP button on the console).
If the vehicle is fitted with the ESP system, when the + after ignition feed is switched on, the indicator light should
come on for 3 seconds. In the event of a fault, configure the rev counter using the command CF002 ELECTRONIC
STABILITY (ESP) CONTROL (see Configuration).
Dimmer lighting function check:
With the side lights on, activate the rev counter variation control, the rev counter lighting varies at the same time.
If the rev counter lighting does not change, check the configuration of the rev counter using configuration reading
LC003 DIMMER LIGHTING (see Configuration) and configure the rev counter in accordance with the requirements
using command CF003 DIMMER LIGHTING (see Configuration).

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Fault finding - Status summary table
Tool status Diagnostic tool title
ET002Side lights control

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Fault finding - Interpretation of statuses
ET002
SIDE LIGHTS SWITCH
STATUS
DEFINITION–ACTIVE: This status indicates that the side light control is active.
–INACTIVE: This status indicates that the side light control is inactive.
NOTES–Ignition on.
–Side lights on.
If the status of the side light control remains at status INACTIVE, apply the following fault finding procedure.
Check fuse F43 (10A) of the passenger compartment fuse box, component code 1016.
Check that the connection and condition of the rev counter connector are correct (see Wiring Diagram Technical
Note, Twingo II, Component code 995).
If there is a repair method (see Technical Note 6015A, Electrical wiring repair, Wiring: Precautions for repair)
repair the connector, otherwise replace the wiring.
Check the + 12 V feed on connection LPG of component 995.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair) repair the wiring, otherwise replace it.
Check the continuity and insulation of:
Connection LPG between the passenger compartment fuse box, component code 1016 and the rev
counter, component code 995.
Connection MAM of the rev counter, component code 995.
Connection MAN of the rev counter, component code 995.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair) repair the wiring, otherwise replace it.
If the fault is still present, contact the techline.
CPT_V04_ET002

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