air condition RENAULT TWINGO RS 2009 2.G Electrical Equipment - Wipers, Washers Workshop Manual

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MR-413-X44-85A000$100_eng.mif
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WIPERS - WASHERS
Fault finding - Introduction85A
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 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 complaint.
A summary of the overall procedure to follow is provided on the following page in the
form of a flow chart.

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85A
WIPERS - WASHERS
Fault finding - Fault Finding Chart
ALP 13 No rear screen wiping
NOTESOnly refer to the customer complaints after performing a complete check using the
diagnostic tool.
Check in particular the functioning of the status ET080 "Rear screen wiper request"
and the command AC007 "Rear screen wiper" in the UCH. Also check that fault
DF040 "Rear screen wiper park position" is not present.
Check that the blade is correctly fitted to the blade holder and that the mounting nut is correctly tightened.
Check that nothing interferes with the rear screen wiper functioning.
Check that the motor is in good condition.
Check that the mechanism between the motor and the blade is correctly mounted (see MR411,
85A Wipers-washers).
AFTER REPAIRCarry out a complete check with the diagnostic tool.
MR-413-X44-85A000$900_eng.mif

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WIPERS - WASHERS
Fault finding - Fault Finding Chart85A
ALP 15 No front wiping following activation of the wiper switch
NOTESOnly refer to the customer complaints after performing a complete check using the
diagnostic tool.
Check in particular the correct functioning of statuses ET077 "Wiper stalk position"
and ET114 "Wiper request by rain sensor", ET027 "Windscreen wiper park
position" and commands AC056 "Low speed wiper" and AC057 "High speed
wiper" in the UCH. Check for fault DF097 "Windscreen wiper park position
circuit".
Perform a multiplex network test if the multiplex network is faulty (see 88B, Multiplexing).
Check that the blades are correctly fitted to the blade holders and that each mounting nut is correctly tightened.
Check that nothing is interfering with the windscreen wiper mechanism operation.
Check that the motor is in good condition.
Check that the mechanism between the motor and the blade is correctly mounted and tightened (see MR411,
85A Wipers-washers).
AFTER REPAIRCarry out a complete check with the diagnostic tool.

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WIPERS - WASHERS
Fault finding - Fault Finding Chart85A
ALP 17 No front and rear screen washer
NOTESOnly check this customer complaint after a complete check with the diagnostic tool.
Check in particular the correct functioning of statuses ET078 "Front washer
request" and ET079 "Rear washer request" in the UCH.
The reservoir containing the washer fluid?
YES
Does the pump run when its control is activated?
YES
Check the condition of the pipes and jets.
Are they in good condition?
YES
Are the jets correctly adjusted?
YES
End of fault finding.
NOPut some washer fluid in the reservoir.
NOPower the pump directly to check it is
functioning correctly.
Replace the pump if it does not work.
NOCarry out the necessary repairs and clean the
jets.
NOAdjust the jets.
AFTER REPAIRCarry out a complete check with the diagnostic tool.

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WIPERS - WASHERS
Fault finding - Fault Finding Chart85A
ALP 18 No wiping when it rains
NOTESOnly check this customer complaint after a complete check with the diagnostic tool.
Check in particular the correct functioning of statuses ET077 "Wiper stalk position"
and ET114 "Wiper request by rain sensor" in the UCH.
Note:
If the exterior temperature is below 5 ˚C, automatic wiper action will be blocked, to
avoid damaging the wiper blades if they are frozen.
STEP 1
Place the command in the intermittent position to activate automatic wiping.
If necessary explain to the customer how this function works.
STEP 2
Check whether the vehicle has a rain / light sensor. If the vehicle does not have a rain / light sensor, explain to the
customer that this is normal, and that the vehicle does not have this feature.
Check that the vehicle is configured with a rain / light sensor.
Check that LC044 "Rain/light sensor" displays "Present". If not, carry out CF035 "Rain/light sensor".
Check that LC096 "Automatic wiper function" displays "With". If not, carry out CF194 "Automatic wiper
function".
Check that LC095 "Automatic headlight function", displays "With". If not, carry out CF193 "Automatic
headlight function".
STEP 3
Check that the windscreen is clean and in good condition (no cracks, bonded correctly, etc.).
Check that the sensor is present and correctly positioned.
Check that the windscreen is the correct type.
AFTER REPAIRCarry out a complete check with the diagnostic tool.