ignition RENAULT SCENIC 2013 J95 / 3.G Electronic Parking Brake Workshop Manual

37B-2
MR-372-J84-37B000$072.mif
V11
37B
ELECTRONIC PARKING BRAKE
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 document):
– 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 save power, the UCH on the Laguna II Phase 2, Espace IV phase 1, 2 and 4, and Vel Satis phase 1 and 2
interrupts the + after ignition feed supply after 3 minutes.
To run fault finding on a computer, it is possible to force the + after ignition feed for 1 hour by applying the following
procedure:
– Press the card unlocking button,
– Insert the card into the reader,
– press the start button (interrupting the timed + after ignition feed mode),
– press the start button for more than 5 seconds, until the immobiliser warning light flashes rapidly (4 Hz).
This forced + after ignition feed mode remains active for 1 hour.
Pressing the start button or removing the card from the card reader interrupts the forced + after ignition feed, but
does not interrupt the time period for the forced + after ignition feed. Until one hour has elapsed, activating the +
after ignition feed will restart forced + after ignition feed for the remaining time. Vehicle(s): Vel Satis phase 1
Vel Satis phase 2
Laguna II Phase 2
Scénic II Phase 1 and
Scénic II Phase 2
Espace IV phase 1
Espace IV phase 2
Espace IV phase 4
Function concerned: Electronic parking brakeName of computer: FPA
Vdiag No.: 0C, 04, 08, 0D, 11
Special tooling required
Multimeter
Elé. 1681 Universal bornier
FPA_V0C_PRELI/FPA_V04_PRELI/FPA_V08_PRELI/FPA_V0D_PRELI/FPA_V11_PRELI
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
MR-372-J84-37B000$072.mif

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ELECTRONIC PARKING BRAKE
Fault finding – Introduction
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
Only affects the Scénic II phase 1 and the Scénic II phase 2:
To run fault finding on the vehicle's computers, switch on the ignition in fault finding mode (forced + after ignition
feed).
Proceed as follows:
– Renault card in the card reader (keyless vehicle scenario 1, entry-level, without hands-free and scenario 2, top of
the range, hands-free),
– press and hold the Start button (longer than 5 seconds) with start-up conditions not fulfilled,
– connect the diagnostic tool and perform the required operations.
To cut off + after ignition feed, proceed as follows:
– disconnect the diagnostic tool,
– press the Start button twice briefly (less than 3 seconds).
– ensure that the + after ignition feed has been cut off by checking that the computer indicator lights on the
instrument panel have gone out.
Fault context.
Affects VDiag 08, 0C, 0D and 11.
Explanation of the fault context counters.
The are three different counters:
PR022: Dating counter
PR018: Presence counter
PR019: Frequency counter
Dating counter:The counter starts when the fault appears.
Each time the computer switches on and the fault is stored or present, the
counter increases by 1 up to 255.
Presence counter:As soon as the fault is present, the counter goes to 15. If the fault becomes
stored, each time the computer switches on, the number decreases by 1
(from 15 to 0) and goes back to 15 again if the fault reappears.
Frequency counter:Number of times the present fault appears; it sets to 0 when the fault appears.
It increases each time the fault moves from stored to present.
The maximum value of this counter is 15.

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V11
ELECTRONIC PARKING BRAKE
Fault finding – Introduction
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
Faults
Faults are declared present or stored (depending on whether they appeared in a certain context and have
disappeared since, or whether they remain present but are not diagnosed within the current context).
The present or stored status of faults should be taken into consideration when the diagnostic tool is used following
the + after ignition supply being switched on (without acting on the system components).
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 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 for these lines (for oxidation, bent pins, etc.),
– the resistance of the faulty component,
– 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 when 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 dealt with by
Customer complaints.
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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ELECTRONIC PARKING BRAKE
Fault finding – System operation
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
MANUAL OPERATION:
– The parking brake is engaged by pulling on the control lever (normal braking immobilises the vehicle).
– Over-application can be obtained by pulling and holding the lever for 5 seconds (maximum application for steep
hills or when the vehicle has reached its maximum permissible all-up weight).
– When the parking brake is applied, the computer super-applies if the force applied to the rear brake callipers is
insufficient (pads cooling) or if the computer detects slight vehicle movement. This detection is limited to
24 hours.
– The parking brake is released when the control lever is applied fully and the release switch is pressed.
ASSISTED OPERATION:
The electronic parking brake enables assisted application and release of the brake:
●Applying the brake: When the engine is switched off, the parking brake is applied when the driver presses the
start button
●Releasing: The brake releases when the drive wheels reach the torque required to move the vehicle
(Note:with automatic transmission, the driver's door must be closed).
Restrictions on assisted brake release in automatic transmissions:
Assisted release is not allowed in the following cases:
– Opening the driver's door followed by engaging a gear (gear lever in position D).
– Engaging a gear (gear lever in position D) followed by opening the driver's door. Note:
When the parking brake is applied, the red light on the instrument panel (brake pads) and indicator light on the
lever are lit.
Below 6 mph (10 km/h) pulling the lever applies the rear brakes. Above 6 mph (10 km/h) pulling the lever
provides dynamic emergency braking without locking the rear wheels (statutory deceleration of 1.5 m/s
2).
The electronic parking brake can only be released when the steering column is unlocked (forced + after ignition
feed, see Introduction).
Note: In this case, the instrument panel displays the message Lever in P or N and the buzzer on the instrument
panel sounds.
Note: In this case, release is authorised for 5 s after the driver's door has been opened (e.g. for a manoeuvre).
After 5 seconds release is prevented.
Note:
Assisted braking and release only occurs if the computer has been configured.
For details on how these configurations function, see Configuration and programming.

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ELECTRONIC PARKING BRAKE
Fault finding – System operation
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
GENERAL OPERATING MODE FOR THE COMPUTER:
The electronic parking brake computer operates in two modes: STANDBY mode and SWITCH ON mode.
●SWITCH ON mode:
Available functions:
– Manual application and release, assisted application and release and emergency braking (steering column
unlocked).
– Full system fault finding (all faults can be identified).
Switch on conditions (3 possibilities):
– The UCH sends a switch on request to the parking brake computer via the multiplex network when the vehicle
is opened or the card is inserted in the reader.
– Braking request via the parking brake control lever.
– Battery voltage more than 13.2 V, if the vehicle has been parked for less than 24 hours.
●STANDBY mode:
Available functions:
– Monitoring of the braking force and slope angle for 24 hours (to ensure parking brake application).
– Only application is authorised (using the lever).
– Restricted system fault finding (the computer can no longer identify all faults).
– Release not authorised.
Conditions for setting to standby:
– The UCH sends a "set to standby" request to the parking brake computer via the multiplex network after the
ignition is switched off and the vehicle is locked (after a few seconds). The parking brake computer's STANDBY
mode will be confirmed by the lever warning light going out (special note: the battery voltage must be less than
13.2 V).
CABLE RESETTING:
The parking brake cable is locked after the control lever is released or after driving at over 1 mph (2 km/h) (switched
on mode).
When the electronic parking brake system locks, it makes a sound that lasts for a few seconds and ends with
clicking (play compensation is automatic).WARNING
Before using the emergency control, it is important to put the vehicle into gear and wedge one wheel if necessary
(on a slope).

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37B
ELECTRONIC PARKING BRAKE
Fault finding – Replacement of components
A/ PROCEDURE FOR REPLACING AN ELECTRONIC PARKING BRAKE COMPUTER
●For the description of the mechanical operations for replacing the control unit (computer) and brake cables (see
MR405 (Espace IV) or MR395 (Laguna II) or MR370 (Scénic), Mechanical, 37B, Electronic parking brake,
Control unit: Removal - Refitting and 37A, Mechanical component controls, Parking brake cables:
Removal - Refitting or MR353 (Vel Satis), Mechanical, 37B, Automatic parking brake, Control unit and
brake cables).
●The parking brake cables must always be replaced when the computer is replaced.
●In the same way, the computer must be replaced when the parking brake cables are changed.
●Conversely, the lever and the parking brake are independent of one another.
●Lever replacement must be carried out with + after ignition feed switched off and the parking brake released,
otherwise faults may occur.
●The clutch sensor must be replaced with + after ignition feed switched on to avoid a fault being provoked.
BEFORE REPLACING THE PARKING BRAKE COMPUTER:
If the vehicle has a manual gearbox, recover the clutch data from the memory of the old computer so that it can be
entered into the new computer (see section C).
Operations to perform before replacement:
– Switch on the ignition, connect the diagnostic tool and establish dialogue with the computer (parking
brake field).
– before replacing the computer, check that it is actually causing the fault by reading the faults and apply
the fault finding procedure concerned.
Steps to follow after replacement:
– with the ignition switched off, replace the electronic parking brake computer (with the approval of
Te c h l i n e ) .
– switch on the ignition, connect the diagnostic tool and establish dialogue with the computer (parking
brake field),
– apply the procedure described in section B: NEW COMPUTER CALIBRATION AND INITIALISATION,
– release the parking brake lever to reset the cables.
– check parking brake operation by testing the braking, maximum braking, and release,
– read the faults to clear any stored faults and check that replacing the computer has enabled the fault on
the vehicle to be rectified (no faults present).
– read the configuration (repair mode menu) to check that the parking brake computer configuration has
been correctly configured.
– depending on the configuration chosen, check the assisted braking and release. Note:
An electronic parking brake computer should be replaced only when requested by the Techline (fill out the fault
finding log).
Note:
With an automatic transmission, no data recovery is required (the computer can be replaced without applying
sections C and D).
Important:
Do not clear the faults from the computer before replacing it.
IMPORTANT: It is strictly forbidden to drive a vehicle with an electronic parking brake computer unless it is in
customer mode.
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
MR-372-J84-37B000$288.mif

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FPA
Vdiag No.: 0C, 04, 08,
0D, 11ELECTRONIC PARKING BRAKE
Fault finding – Replacement of components37B
B/ COMMISSIONING A NEW COMPUTER
1/ COMPUTER CONFIGURATION
– Carry out configuration in accordance with the customer's request (see Configurations and
programming).
2/ VEHICLE IDENTIFICATION NUMBER ENTRY
– run command VP004 Write VIN.
– enter the vehicle identification number using the diagnostic tool keypad,
–confirm.
3/ COMPUTER CALIBRATION AND COMMISSIONING
–In + after ignition feed, run command VP011 Computer calibration and initialisation and carry out
the following 4 steps.
STEP 1 VEHICLE MASS CALIBRATION
Screen 1:
With the dropdown menu, enter the following information:
– vehicle type,
– engine type,
– gearbox type,
– type of driving style,
– equipment level (for Vdiag 04),
– confirm the operation by pressing Next.
Screen 2:
– reread the highlighted information.
– If the highlighted information does not match the vehicle, return to the selection screen by pressing Back,
– if the highlighted information is correct, continue with step 2 by pressing Next.
STAGE 2 INITIALISING A NEW PARKING BRAKE
– Initialise the brake by pressing YES (you should hear a noise as the brake is applied and then released).
– Proceed to step 3 by pressing Next.
STEP 3 SLOPE INITIALISATION
– Calibrate the slope sensor by pressing Confirm. Proceed to step 4 by pressing Next.
STEP 4 INITIALISING ASSISTED BRAKING
– Carry out initialisation by pressing Confirm.
– Return to the selection list screen by pressing Finish. Note:
If the vehicle identification number is not entered and command CF007 Vehicle configuration is not run, step 3
of initialising the computer will not work.
WARNING
To initialise the computer, the vehicle must be on a horizontal surface with the brake cables correctly fitted
(connected to the rear brake callipers) and nobody must be working on the vehicle.

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ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA_V0C_DF003/FPA_V04_DF003/FPA_V08_DF003/FPA_V0D_DF003/FPA_V11_DF003
DF003
PRESENT
OR
STOREDCOMPUTER
1. DEF: Internal electronic fault
2. DEF: Internal electronic fault
3. DEF: Loss of computer supply voltage
NOTESPriorities when dealing with a number of faults:
This fault must be dealt with first.
Special notes:
Before replacing the electronic parking brake computer, save the data from the old
computer (for vehicles fitted with a manual gearbox).
For this operation, see Replacement of components.
1. DEF
2. DEF
NOTESNone.
If the fault is present or stored, contact the Techline.
3. DEF
NOTESSpecial notes:
The fault does not usually come from the electronic parking
brake computer.
This fault indicates that the computer has detected several
losses of feed (micro-breaks).
Note:
This fault may be caused by several battery disconnections
or a vehicle power supply fault.
Only for Vdiag 08, 0C and 0D:
If there is a stored fault, refer to the statuses and
parameters when it appears.
Explanation of counters: see Introduction.
If the fault is stored and PR018 = 0 and PR022 > 25,
then clear the fault:
do not take this fault into account.
Conditions for applying the fault finding procedure to
a stored fault:
Apply this fault finding procedure if the fault reappears as
present or stored after a fault has been cleared and forced
+ after ignition feed has been switched off and on again
(seeIntroduction).
AFTER REPAIRIf the computer has been replaced (at the request of the Techline), initialise the
electronic parking brake computer (see Replacement of components).
Issue several braking and release commands to confirm the repair.
Deal with any other faults.
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
MR-372-J84-37B000$504.mif

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ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
DF015
PRESENT
OR
STORED
CLUTCH POSITION SENSOR CIRCUIT
CC.0 : Short circuit to earth
CC.1 : Short circuit to + 12 volts
1. DEF: Signal inconsistency between the sensor and the gearbox
2. DEF: Signal outside lower limit
3. DEF: Sensor supply fault
NOTESPriorities when dealing with a number of faults:
Deal with faults DF035 Undervoltage, DF055 Battery undervoltage and DF054
Battery voltage too high first, if they are present or stored.
Special notes:
The fault does not usually come from the electronic parking brake computer.
The fault should only be displayed on a vehicle fitted with a manual gearbox. If it is
displayed on an automatic transmission, check the configurations.
The sensor should be replaced in + after ignition feed, if not this fault may occur.
If the fault appeared following replacement of the clutch position sensor, check the
procedure and repeat it in + after ignition feed if necessary, after clearing the fault.
If the fault cannot be cleared, disconnect the clutch sensor under + after ignition
feed, then reconnect it.
Only for Vdiag 08, 0C and 0D:
If there is a stored fault, refer to the statuses and parameters when it appears.
Explanation of counters: see Introduction.
If the fault is stored and PR018 = 0 and PR022 > 25 clear the fault: do not take this
fault into account.
CC.0; CC.1; 3.DEF
NOTESConditions for applying the fault finding procedure to
a stored fault:
The fault is declared present when the ignition is switched
on (forced + after ignition feed, see Introduction).
Check the connection and condition of the clutch pedal position sensor connector.
Repair if necessary.
With the clutch pedal position sensor connector disconnected, check the insulation, continuity and absence of
interference resistance on the following connections:
AFTER REPAIRIf the computer has been replaced (at the request of the Techline), initialise the
electronic parking brake computer (see Replacement of components).
Issue several braking and release commands to confirm the repair.
Deal with any other faults.
FPA_V0C_DF015/FPA_V04_DF015/FPA_V08_DF015/FPA_V0D_DF015/FPA_V11_DF015

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ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
DF015
CONTINUED
Clutch pedal position sensor connector: 1057Electronic parking brake computer connector:
1217
Track 1
Track 2
Track 3Track E4
Track E3
Track E2
Repair if necessary.
Disconnect the clutch pedal position sensor connector to check, with the ignition switched on and the electronic
parking brake computer connector connected, the presence of a 5 volt supply, by measuring between tracks 1
and 3 of the sensor (+ 5 V on track 1 and earth on track 3).
If the 5 V supply is not present and the connections previously checked are correct, contact the Techline.
With the clutch pedal position sensor connector disconnected, measure the sensor resistance between tracks 1
and 3 of the sensor.
Replace the sensor if its resistance is not 5200  ± 520 .
If the fault is still present, contact the Techline.
1. DEF; 2. DEF
NOTESConditions for applying the fault finding procedure to
a stored fault:
Engine at idle speed, and gear engaged for 5 seconds.
Check the operation of statuses ET016 Manual gearbox gear lever position and ET017 Reverse gear
engaged and the absence of any incorrect contacts.
If not correct, check the operation of the gearbox sensor.
Check that the clutch pedal position sensor is fitted correctly: the "arm" of the potentiometer should be inserted
correctly into its mounting lug (neither above nor below).
Using the diagnostic tool, display parameter PR006 Clutch pedal position on the main data screen (see the
conformity check values).
Check the conformity of the pedals.
If the fault persists, contact the Techline.
AFTER REPAIRIf the computer has been replaced (at the request of the Techline), initialise the
electronic parking brake computer (see Replacement of components).
Issue several braking and release commands to confirm the repair.
Deal with any other faults.