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

83E-3
MR-413-X44-83E000$084_eng.mif
V2
REV COUNTER INSTRUMENT
Fault finding - Introduction

Vdiag No.: 04
83E
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 summary of the overall procedure to follow is provided on the following page in the
form of a flow chart.

83E-5
MR-413-X44-83E000$084_eng.mif
V2
REV COUNTER INSTRUMENT
Fault finding - Introduction

Vdiag No.: 04
83E
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.

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-11
MR-413-X44-83E000$504_eng.mif
V2
83E
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

Vdiag No.: 04
MR-413-X44-83E000$504_eng.mif

83E-13
MR-413-X44-83E000$588_eng.mif
V2
REV COUNTER INSTRUMENT
Fault finding - Conformity check

Vdiag No.: 04
83E
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).