battery RENAULT TWINGO RS 2009 2.G Electrical Equipment - Access Safety Workshop Manual

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Fault finding - Introduction82D
5. FAULT FINDING LOG
You will always be asked for this log:
–when requesting technical assistance from the Techline,
–for approval requests when replacing parts for which approval is obligatory
–to be attached to monitored parts for which reimbursement is requested. The log is needed for warranty
reimbursement, and enables better analysis of the parts removed.
6. SAFETY INSTRUCTIONS
All work on components requires the observation of safety rules to prevent damage or injury:
–check the battery voltage to avoid incorrect operation of computer functions,
–Use the proper tools.
Procedure for disconnecting the battery:
–switch off the ignition,
–switch off all consumers,
–wait at least 1 minute for the electronic systems to switch off,
–disconnect the battery, starting with the negative terminal. IMPORTANTIMPORTANT
Any fault on a complex system requires thorough fault finding with the appropriate tools. The
FAULT FINDING LOG, which should be completed during the procedure, enables you to keep
track of the procedure which is carried out. It is an essential document when consulting the
manufacturer.
IT IS THEREFORE MANDATORY TO FILL OUT A FAULT FINDING LOG EACH TIME FAULT FINDING IS
CARRIED OUT.

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Fault finding - Function82D
3. Starting
The UCH controls the command and supply part of the start-up function while the start-up-charging process is
controlled by the UCH. For this function to operate normally, the protection function must have been successfully
completed.
To enable the starting command the UCH needs information about the following statuses and parameters:
–ET142 Engine operating phase
–ET239 Ignition switch position
–PR025 "Engine speed"
*Powerlatch: Time required for injection computer supply after + 12 V APC cut-off to the ignition switch.
Extended memory key:
In this case, the UCH sends data to the key at specific times to provide the key with up-to-date application data when
the + after ignition feed is cut off.
The following information can be retrieved on the multiplex line:
–The vehicle identification number.
–If entered by customer services: the customer's contact details.
–The total vehicle mileage.
–The fuel level.
–The mileage before oil service.
The UCH sends this information to the key under the following conditions:
–Every time the vehicle is started.
–Every time the vehicle speed drops below 3 mph (5 km/h) and if 1 mile (2 km) have been travelled since the last
record. IMPORTANT
When the vehicle battery has a low charge, the drop in voltage caused by operating the starter could reactivate
the immobiliser. If the voltage is too low, the engine cannot be started, even by pushing the vehicle.
Note:
If several, i.e. three or four, attempts have been made using a key not allocated to the vehicle, the injection
computer locks. Insert a key allocated to the vehicle for 20 seconds in + after ignition feed, then switch off the
ignition and wait for the end of "powerlatch*" (20 minutes) to allow the injection computer to unlock.

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Fault finding - Fault Finding Chart82D
ALP 20
CONTINUED
Carry out a locking/unlocking request with a different
key belonging to the same vehicle.
Did the switch work?
NO
With the + after ignition switched on, carry out a
locking/unlocking request on the vehicle via the
electric door locking switch.
Did the switch work?
NO
Check the wiring between the door locks and
the UCH. Carry out the necessary repairs.
YESCheck the charge of the key battery
Check the condition of the first key and its
contacts.
Replace the battery or the key if necessary.
YESUse the diagnostic tool to check the statuses
associated with pressing the buttons on the
key.
If the fault is still present, contact Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.

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Fault finding - Fault Finding Chart82D
Vehicle which is equipped with deadlocking function:
ALP 21 Tailgate opening fault
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
In particular, check the operation of statuses ET463 "Door(s) or tailgate", ET157
"Tailgate opening request" and command AC061 "Tailgate opening".
Check the following conformities:
CF009 Deadlocking with LC003 Deadlocking.
CF108 "Renault Anti-Intruder Device" with LC040 "Renault Anti-Intruder
Device".
CF192 Central door locking with LC093 Central door locking.
Check that DF133 "Deadlocking motor(s) circuit"is not present.
The vehicle and the tailgate must be unlocked.
If the tailgate is already open, the tailgate opening
function is disabled.
Check the wiring between the tailgate lock and
the UCH.
Carry out the necessary repairs.
Remove the lock, close the lock by sliding a
screwdriver into it; test the lock by connecting an
earth and a +battery feed to the motor terminals
(for less than one second).
If the lock still does not work, replace the lock.
If the fault is still present, contact Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP21

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Fault finding - Fault Finding Chart82D
ALP 25Starting protection (vehicle does not start when the ignition
key is turned)
NOTESCheck the battery voltage and the presence of (correct) fuel in the fuel tank.
Only consult this customer complaint after a complete check with the diagnostic tool.
Check the operation of the following statuses and parameters in particular: ET046
Immobiliser, ET239 Ignition switch position, ET142 Engine operation phase,
ET229 Injection immobiliser code and PR025 Engine speed.
Carry out a full conformity check on the protection and starting sub-function.
Note:
If the user makes three consecutive attempts to start the vehicle using a key which does not belong to the vehicle,
the injection computer goes into protection mode and there is no dialogue with the UCH.
Use the following procedure to bring the injection computer out of protection mode and to re-establish dialogue
between the injection computer and the UCH:
–Obtain a key which belongs to the vehicle.
–Put the key in the ignition switch in the + After ignition position for 20 seconds.
–Switch off the ignition and wait for the end of powerlatch (20 minutes).
If the engine will not start after this operation, apply the following procedure.
Check the battery (see 80A, Battery) and the charge circuit (see 16A, Starting-charging).
Carry out fault finding on the multiplex network (see 88B, Multiplexing).
Check the key using command SC018 "Checking a key".
If the key is allocated, obtain a second key belonging to the vehicle and start the engine.
If the engine starts with the second key, replace the first key with a new key and allocate the new key to the
vehicle using command SC015 "Key allocation".
Carry out fault finding on the multiplex network (see 88B, Multiplexing).
AFTER REPAIRCarry out another fault finding check on the system.
UCH_V44_ALP25