display RENAULT TWINGO RS 2009 2.G Chasiss ABS Workshop Manual

38C-3
MR-413-X44-38C000$047_eng.mif
V1
ANTI-LOCK BRAKING SYSTEM
Fault finding - Introduction
MK70 ABS
Vdiag No: 04
38C
3. REMINDERS
Procedure
To run diagnostics on the vehicle computers, switch on the ignition using the key.
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 switched on
after the + after ignition feed (without any system components being active).
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 on these lines (corrosion, 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 statuses and parameters that do not produce a fault display on the
diagnostic tool when they are 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 complaint.
A summary of the overall procedure to follow is provided on the following page in the
form of a flow chart.

38C-51
MR-413-X44-38C000$564_eng.mif
V1
38C
ANTI-LOCK BRAKING SYSTEM
Fault finding - Conformity check
SUB-FUNCTION: BRAKE REGULATION
NOTESOnly check conformity after a full check with the diagnostic tool.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
1Diagnostic tool
dialogueABS system Apply ALP1.
2Computer
configurationPR030:Tachometric
indexCheck that the index
entered corresponds to
the tyres fitted to the
vehicle (see Clip help).See Configurations and
Programming (VP007).
3Brake pedal not
depressed
detectionET017:Brake pedalStatus "RELEASED"
confirmed, brake pedal
not depressed.If there is a fault, use the
interpretation for ET017
Brake pedal.
4Depressed
brake pedal
detectionET017:Brake pedalStatus "DEPRESSED"
confirmed, brake pedal
depressed.If there is a fault, use the
interpretation for ET017
Brake pedal.
5Vehicle
parameter
readingPR063: Vehicle
parametersCheck that the version
corresponds to the
vehicle being tested
(see the Clip Help)See Configuration and
programming
(VP004 "Vehicle
parameters").
6Gearbox type
readingLC008:Gearbox typeCheck that the gearbox
selected corresponds to
that fitted on the vehicle.See Configuration and
programming
(CF079 "Gearbox type").
ABS_V04_CCONF
MK70 ABS
Vdiag No: 04
MR-413-X44-38C000$564_eng.mif