warning light 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

37B-8
MR-372-J84-37B000$144.mif
V11
37B
ELECTRONIC PARKING BRAKE
Fault finding – System operation
PRESENTATION OF THE PARKING BRAKE:
The electronic parking brake provides the following functions:
– keeps the vehicle stationary when stopped (parking brake).
– 'dynamic' emergency brake (if the main brakes fail).
– automatic braking force adjustment according to the slope (adapted application),
– electronically-assisted parking brake application when the engine is stopped (depending on configuration),
– easy start with electronically-assisted parking brake release (depending on configuration),
– manual application and release by pulling on the lever.
SYSTEM COMPONENTS AND OPERATION:
The system consists of the following components:
●Control lever with brake on indicator light.
– For applying and releasing the parking brake.
●Control unit (computer) housing an electric motor, the brake cable hooks, angle sensor and force sensor.
–The angle sensor controls locking according to the angle of the slope.
–The force sensor checks and corrects the force applied to the brakes.
●Clutch pedal position sensor to help with pulling away.
– Informs the computer of the vehicle's clutch position (the position of the pedal enables the torque necessary for
vehicle movement to be obtained).
●Tw o mechanical cables
– Convey the mechanical force to the rear brakes.
●Emergency control cable (in the central storage compartment on the LAGUNA, VEL SATIS and ESPACE and in
the boot on the SCENIC).
– Enables the rear brakes to be released in the event of the battery or parking brake failing.
●Warning lights and symbol on the instrument panel.
– Indicate application, releasing and any faults on the parking brake.
Note:
The parking brake cable play compensation is performed automatically by the control unit.
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
MR-372-J84-37B000$144.mif

37B-10
MR-372-J84-37B000$144.mif
V11
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).

37B-11
MR-372-J84-37B000$144.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – System operation
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
WARNING LIGHT MANAGEMENT
Indications of a level 1 fault:
–Check Parking Brake message on the instrument panel display.
–orange warning light (P in a triangle) on the instrument panel comes on.
–SERVICE warning light comes on.
Indications of a level 2 fault:
–Parking brake defective message on the instrument panel display.
–1-second audible warning (from the instrument panel),
–orange warning light (P in a triangle) on the instrument panel comes on.
–SERVICE warning light comes on,
–Red indicator light (brake pad light) on the instrument panel comes on.
– parking brake control lever indicator light flashes.
Warning occurs:
– when the door is opened and a gear is engaged on an automatic transmission,
– when the vehicle is moving, despite the parking brake being applied,
– when the door is opened, with the engine running and the parking brake released,
– when the door is opened, with the engine stopped and the parking brake released, Note:
When the lever warning light stops flashing, the instrument panel message disappears. If the system has a level 2
fault, whenever the lever is used, the indicator light on the lever starts flashing again and the fault message
reappears.

37B-12
MR-372-J84-37B000$216.mif
V11
37B
ELECTRONIC PARKING BRAKE
Fault finding – Allocation of computer tracks
ALLOCATION OF COMPUTER TRACKS FOR THE ELECTRONIC PARKING BRAKE
AND THE CONTROL LEVER
Track Description
A1Not used
A2Multiplex line L
A3Multiplex line H
A4Diagnostic line K
B1Not used
B2Not used
Control lever
tracks
B3Not used
B4Not used 6 + 12 V battery
12+12V side
lights
C1Not used 2 Earth
C2Dynamic brake switch signal (1
stswitch)
7
C3Dynamic brake switch signal (2
ndswitch)
10
C4Lever warning light lit
5
D1Not used
D2Dynamic brake switch supply (1
stswitch)
9
D3Static brake switch supply (2
ndswitch)
4
D4Not used
E1Not used
E2Clutch pedal sensor earth
Clutch pedal
sensor
tracks E3Clutch pedal sensor signal
E4Clutch pedal sensor supply
3
F1Not used
2
F2Not used
1
F3Not used
F4Not usedNote:
The clutch pedal sensor is only fitted to
vehicles with a manual gearbox.
G1Not used
G2Computer earth (SCENIC II Ph 1 and Ph 2 only)
G3Not used
G4+ Battery feed (SCENIC II Ph 1 and Ph 2 only)
H1Not used
H2Computer earth
H3+ 12 V battery
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
MR-372-J84-37B000$216.mif

37B-14
MR-372-J84-37B000$288.mif
V11
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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MR-372-J84-37B000$432.mif
V11
37B
ELECTRONIC PARKING BRAKE
Fault finding – Fault summary table
Tool faultAssociated
DTCDiagnostic tool title
DF003 50C3Computer
DF004 50CAComputer
DF006 50C5Computer configuration
DF015 5166Clutch position sensor circuit
DF016 50 CBWarning light circuit
DF025 5168Vehicle movement with maximum application
DF028 517EComputer
DF029 517BComputer
DF035 5170Undervoltage
DF036 5180No injection multiplex signal
DF037 5181No ABS system multiplex signal
DF038 5188No automatic transmission multiplex signal
DF039 5183No UCH multiplex signal
DF041 5160Angle sensor (internal)
DF042 5161Force sensor (internal)
DF043 5162Parking brake motor
DF044 516CBrake switch
DF045 5172Redundant brake switch
DF046 516FBrake motor/cables connection
DF047 5171Manual control
DF048 5173Release switch
DF049 5175Braking
DF050 5178Mechanical jamming (internal)
DF051 5176System fault after computer replacement
DF052 516DMultiplex network
DF054 50C1Battery overvoltage
DF055 50C0Battery voltage too low
DF056 5163Brake cables incorrectly fitted
DF057 517AComputer internal temperature sensor
DF058 5177Parking brake motor current (internal)
DF059 5194No Protection and Switching Unit multiplex signal
DF073 5174Computer
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
MR-372-J84-37B000$432.mif

37B-24
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
DF016
PRESENT
OR
STOREDWARNING LIGHT CIRCUIT
CC.0: Short circuit to earth
CC.1: Short circuit to + 12 V.
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.
Conditions for applying the fault finding procedure to a stored fault:
The fault is declared present after the forced + after ignition is switched on
(seeIntroduction) and an application request using the control lever.
Special notes:
The fault does not usually come from the electronic parking brake computer.
Note:
After a release request, the fault becomes stored.
Replacing the lever with the parking brake applied may cause this fault. If this fault
appears after replacing the lever, release the parking brake and carry out the
procedure again.
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 section.
If the fault is stored and PR018 = 0 and PR022 > 25 clear the fault: do not take this
fault into account.
If the fault is stored and PR019 < 3, clear the fault: do not take this fault into account.
Check that the electronic parking brake control lever connector is in good condition and also check its clips
(terminals).
Repair if necessary.
Check that there is a 12 V + before ignition supply on track 6 of the electronic parking brake control lever:
see wiring diagram.
Repair if necessary.
Disconnect the electronic parking brake control lever connector in order to check the insulation, continuity and
absence of interference resistance on the following connection:
Electronic parking brake control lever connector:
1216Electronic parking brake computer connector:
1217
Track 5 Track C4
Repair if necessary.
If the fault is still present, replace the parking brake control lever (the indicator light cannot be separated).
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.
FPA_V0C_DF016/FPA_V04_DF016/FPA_V08_DF016/FPA_V0D_DF016/FPA_V11_DF016

37B-44
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
DF044
PRESENT
OR
STOREDBRAKING SWITCH
CC.0: Short circuit to earth
CC.1: Short circuit to + 12 V
NOTESPriority when dealing with a number of faults:
Deal first with faults DF047 Manual control, DF035 Undervoltage, DF055 Battery
undervoltage and DF054 Battery voltage too high, if they are present or stored.
Conditions for applying the fault finding procedure to a stored fault:
The fault is declared present after the ignition is switched on (forced + after ignition
feed, see Introduction) and an application request using the control lever.
The fault does not usually come from the electronic parking brake computer.
Special notes:
The braking switch is in fact the first contact of the lever (the lever travels about
3mm).
This fault appears naturally when the lever is disconnected.
Note:
The fault warning light comes on 10 seconds after the fault appears.
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.
If the fault is stored and PR019 < 3, clear the fault:
do not take this fault into account.
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_DF044/FPA_V04_DF044/FPA_V08_DF044/FPA_V0D_DF044/FPA_V11_DF044

37B-59
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
DF051
PRESENT
OR
STOREDSYSTEM FAULT AFTER COMPUTER REPLACEMENT
NOTESSpecial notes:
This fault indicates a malfunction due to not following procedures correctly:
replacement or reconfiguration of the electronic parking brake computer was carried
out with a present fault.
Conditions for applying the fault finding procedure to a stored fault:
Deal with the fault as if it were present.
Using the diagnostic tool, run fault finding on the electronic parking brake computer.
Deal with other present or stored faults first.
Carry out any necessary repairs. Clear the fault.
If no fault is displayed on the diagnostic tool, carry out a conformity check to check the conformity of the
parking brake system.
If the conformity check and fault finding with the diagnostic tool have not enabled the fault to be solved
(seeIntroduction) for fault warning light management, to find out which components may be causing the
malfunction.
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.
FPA_V0C_DF051/FPA_V04_DF051/FPA_V08_DF051/FPA_V0D_DF051/FPA_V11_DF051