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

37B-7
MR-372-J84-37B000$072.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Introduction
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
5. FAULT FINDING LOG
You will always be asked for this log:
●when requesting technical assistance from Techline,
●for approval requests when replacing parts for which approval is mandatory,
●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
Safety rules must be observed during any work on a component to prevent any damage or injury:
– check the battery voltage to avoid incorrect operation of computer functions,
– use the proper tools. IMPORTANT!IMPORTANT
Any fault on a complex system requires thorough fault finding with the appropriate tools. The
FAULT FINDING LOG, which should be completed during the fault finding procedure, ensures a
record is kept of the procedure carried out. It is an essential document when consulting the
manufacturer.
IT IS THEREFORE ESSENTIAL THAT THE FAULT FINDING LOG IS FILLED OUT EVERY TIME IT IS
REQUESTED BY TECHLINE OR THE WARRANTY RETURNS DEPARTMENT.

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-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-17
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-18
MR-372-J84-37B000$504.mif
V11
37B
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

37B-19
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
DF003
CONTINUED
Disconnect the electronic parking brake computer connector (under the body near the rear axle) to check the
conformity of the power supply (this must equal the voltage measured at the battery terminals ± 0.5 V).
Check the insulation, continuity and the absence of interference resistance on the following connections:
Electronic parking brake computer connector
track H4
(except Laguna II, Vel Satis and Espace IV)
track G4+12V
track H2
(except Laguna II, Vel Satis and Espace IV)
track G2earth
Note:
If the electrical supply is correct, check that the supply has not been cut off by moving the electrical harness
(near to the intermediate connector under the front left-hand seat at the computer connector).
Repair if necessary (see the vehicle wiring diagram).
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.

37B-22
MR-372-J84-37B000$504.mif
V11
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

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-25
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults37B
DF025
PRESENT
OR
STOREDVEHICLE MOVEMENT WITH MAXIMUM APPLICATION
1. DEF: Rear wheel movement with parking brake applied
2. DEF: Front wheel movement with parking brake applied
NOTESPriorities when dealing with a number of faults:
First deal with faults DF046 Brake motor/cables connection, DF042 Force sensor,
DF035 Undervoltage, DF041 Slope sensor, DF049 Brake application, DF054
Battery voltage too high and DF055 Battery undervoltage, if they are present or
stored.
If none of these faults is present or stored, the parking brake computer is not normally
the cause.
Conditions for applying the fault finding procedure to a stored fault:
Apply the fault finding procedure even if the fault is stored.
Note:
The fault does not remain present after it has been detected.
1. DEF
NOTESSpecial notes:
– This fault indicates that the electronic parking brake
computer detected rear wheel movement although the
parking brake was applied with maximum force.
– It may be associated with 2.DEF.
If this fault is not associated with the faults mentioned
above, check the conformity of the parking brake's
mechanical force line:
– Condition and conformity of rear brake pads.
– Parking brake cables correctly fitted.
– Good condition of the parking brake cables (no seizing
or deterioration).
– Conformity, condition and correct operation of the rear
brake callipers.
This fault is an operational warning. Check the context in
which it appears.
It may appear during:
– incorrect use of a roller test bench which drives the
rear wheels (MOT test),
– forced assisted release when starting, when the
starting conditions have not been met,
– vehicle overload on a very steep slope (maximum
permissible all-up weight exceeded + angle > 18°: e.g.
towing a trailer or a caravan).
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_V0D_DF025/FPA_V11_DF025
FPA
Vdiag No.: 0D, 11