Df052 RENAULT SCENIC 2013 J95 / 3.G Electronic Parking Brake Workshop Manual

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-32
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
DF036
PRESENT
OR
STOREDINJECTION MULTIPLEX SIGNAL ABSENT
1. DEF: Multiplex signals absent or values invalid (fault with the computer generating
the signal or multiplex line connection fault)
NOTESPriority in the event of a number of faults:
Deal with faults DF055 Battery undervoltage and DF052 Multiplex network first if
they are present or stored.
Deal with any injection computer faults first.
The fault does not usually come from the electronic parking brake computer.
Note:
If there is a multiplex line fault like this one, the parking brake loses its assisted
application and release functions.
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 the ignition has been switched off and on again (forced
+ after ignition feed: see Introduction).
Special notes:
This fault only relates to multiplex signals received from the injection computer.
This fault indicates either that there is no transmission, or that the signals received by
the parking brake are inconsistent.
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 < 10, 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_DF036/FPA_V04_DF036/FPA_V08_DF036/FPA_V0D_DF036/FPA_V11_DF036

37B-34
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
DF037
PRESENT
OR
STOREDNO ABS MULTIPLEX SIGNAL
1. DEF: Multiplex signals absent or values invalid (fault with the computer generating
the signal or multiplex line connection fault)
NOTESPriority in the event of a number of faults:
Deal with faults DF055 Battery undervoltage and DF052 Multiplex network first if
they are present or stored.
Deal with any ABS computer faults first.
The fault does not usually come from the electronic parking brake computer.
Note:
If this fault is present, the parking brake loses its assisted application and release
functions.
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 the ignition has been switched off and on again
(forced + after ignition feed: see Introduction).
Special notes:
This fault only relates to multiplex signals received from the ABS computer.
This fault indicates either that there is no transmission, or that the signals received by
the electronic parking brake computer are inconsistent.
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 < 10, 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_DF037/FPA_V04_DF037/FPA_V08_DF037/FPA_V0D_DF037/FPA_V11_DF037

37B-36
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
DF038
PRESENT
OR
STOREDNO AUTOMATIC TRANSMISSION MULTIPLEX SIGNAL
1. DEF: Multiplex signals absent or values invalid (fault with the computer generating
the signal or multiplex line connection fault)
NOTESPriority in the event of a number of faults:
Deal with faults DF055 Battery undervoltage and DF052 Multiplex network first if
they are present or stored.
Deal with any automatic transmission computer faults first.
The fault does not usually come from the electronic parking brake computer.
Note:
If this fault is present, the parking brake loses its assisted application and release
functions.
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 the ignition has been switched off and on again (forced
+ after ignition feed: see Introduction).
Special notes:
This fault only relates to multiplex signals received from the automatic transmission
computer.
This fault indicates either that there is no signal or that the signals transmitted are
inconsistent.
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 < 15 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_DF038/FPA_V04_DF038/FPA_V08_DF038/FPA_V0D_DF038/FPA_V11_DF038

37B-38
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
DF039
PRESENT
OR
STOREDNO UCH MULTIPLEX SIGNAL
1. DEF: Multiplex signals absent or values invalid (fault with the computer generating
the signal or multiplex line connection fault)
NOTESPriority in the event of a number of faults:
Deal with faults DF055 Battery undervoltage and DF052 Multiplex network first if
they are present or stored.
Deal with any UCH computer faults first.
The fault does not usually come from the electronic parking brake computer.
Note:
If this fault is present, the parking brake loses its assisted application and release
functions.
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 the ignition has been switched off and on again
(forced + after ignition feed: see Introduction).
Special notes:
This fault only relates to multiplex signals received from the UCH computer.
This fault indicates either that there is no signal or that the signals transmitted are
inconsistent.
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 < 15 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_DF039/FPA_V04_DF039/FPA_V08_DF039/FPA_V0D_DF039/FPA_V11_DF039

37B-41
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
DF042
PRESENT
OR
STOREDFORCE SENSOR
CC.0: Short circuit to earth
CC.1: Short circuit to + 12 V
1. DEF: Sensor supply fault
2 CO.0: Open circuit or short circuit to earth
CC.1
1. DEF
NOTESPriorities when dealing with a number of faults:
This fault must be dealt with first.
Special notes:
The force sensor is internal to the electronic parking brake
computer; it cannot be separated.
Before replacing an 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).
Contact the Techline without clearing the faults.
CC.0
NOTESPriority when dealing with a number of faults:
Deal with faults DF055 Battery undervoltage and DF052
Multiplex network first if they are present or stored.
Special notes:
The force sensor is internal to the electronic parking brake
computer; it cannot be separated.
Before replacing a parking brake control unit, save the data
from the old computer (for vehicles fitted with a manual
gearbox).
For this operation, (see Replacement of components).
Contact the Techline without clearing the faults.
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_DF042/FPA_V04_DF042/FPA_V08_DF042/FPA_V0D_DF042/FPA_V11_DF042

37B-60
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
DF052
PRESENT
OR
STOREDMULTIPLEX NETWORK
1. DEF: Problem receiving multiplex frames by the parking brake computer. The
computer is not receiving any multiplex signals or else two computers are not
communicating with the parking brake computer
NOTESPriorities when dealing with a number of faults:
Deal first with faults DF003 (1.DEF; 2.DEF), DF004, DF028, DF029, DF041, DF042,
DF043, DF050, DF055, DF057, DF058 and DF073.
Deal with any faults on the multiplex network first (see 88B, Multiplexing).
Conditions for applying the fault finding procedure to a stored fault:
Apply this fault finding procedure if the fault reappears as present after the ignition
has been switched on (forced + after ignition feed, see Introduction).
Special notes:
This fault indicates either a complete absence of multiplex signal transmission (no
inconsistency) to the parking brake control unit, or no multiplex signal transmission
from two computers (the continuity of the multiplex network lines may be correct, but if
two computers fail to respond, this fault appears).
The fault does not usually come from the electronic parking brake computer.
Note:
Using another battery for a boost when starting may trigger this 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 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_DF052/FPA_V04_DF052/FPA_V08_DF052/FPA_V0D_DF052/FPA_V11_DF052

37B-61
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
DF052
CONTINUED
Check that an additional booster battery has not been used when starting, if this is the case, this fault may appear.
Use the diagnostic tool to carry out a multiplex system test.
This check ensures that the various multiplex system connections are correct and finds any faulty segments.
Carry out any necessary repairs.
If the multiplex system test has not made it possible to find the defective connection, disconnect the electronic
parking brake computer connector to check it is in good condition and check the condition of the clips (terminals)
and in particular the clips for tracks A2 and A3.
Replace the clips if necessary.
With the electronic parking brake computer connector disconnected, check the insulation, continuity and the
absence of interference resistance on the connections between tracks A2 and A3 of the electronic parking
brake computer and the following computers:
– anti-lock braking system (see diagram of the various computers),
– injection (see diagram of the different computers),
– automatic transmission (see diagram of the different computers),
– UCH (see diagram of the different computers),
– Protection and Switching Unit (see diagram of the different computers).
Repair if necessary.
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-68
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults37B
DF059
PRESENT
OR
STOREDNO PROTECTION AND SWITCHING UNIT MULTIPLEX SIGNAL
1. DEF: Multiplex signals absent or values invalid (fault with the computer generating
the signal or multiplex line connection fault)
NOTESPriority when dealing with a number of faults:
Deal with faults DF055 Battery undervoltage and DF052 Multiplex network first if
they are present or stored.
Deal with any Protection and Switching Unit computer faults first.
The fault does not usually come from the electronic parking brake computer.
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 it has
been cleared, the ignition has been switched back on (forced + after ignition feed:
see Introduction), and the parking brake is released then applied using the control
lever.
Special notes:
This fault only relates to multiplex signals received from the Protection and
Switching Unit computer.
This fault indicates either that there is no signal or that the signals transmitted are
inconsistent.
Note:
If a multiplex line fault such as this is present, the electronic parking brake computer
may lose all or some of its assisted parking functions (application and release).
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.
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_DF059/FPA_V08_DF059/FPA_V0D_DF059/FPA_V11_DF059
FPA
Vdiag No.: 0C, 08, 0D,
11

37B-78
MR-372-J84-37B000$576.mif
V11
FPA
Vdiag No.: 0C, 04, 08,
0D, 11ELECTRONIC PARKING BRAKE
Fault finding – Conformity check37B
SUB-FUNCTION: AUTOMATIC APPLICATION
NOTESOnly carry out this conformity check after carrying out a complete check using the
diagnostic tool.
Application conditions: ignition on (forced + after ignition, see Introduction)
Note:
The interpretation of these statuses and parameters is only valid with the
ignition switched on, the statuses and parameters displayed in blue on the
diagnostic tool is information supplied by other computers, which are transmitted via
the multiplex network. If these variables display inconsistent values, check that the
multiplex system test has not shown up any faulty connections. Repair the faulty
multiplex connections before looking for a possible problem with the signals.
Each sub-function in this test is associated with a Fault finding chart.
Special notes
The diagnostic tool may display the message Computer busy when displaying
statuses and parameters. This message is displayed when the parking brake is
applying or releasing the brake, because the computer gives priority to controlling the
motor before transmitting variables. If this message is displayed, exit the current
screen and then return to it.
Order FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
1Assisted
braking
configurationET022:Automatic
braking
configurationWITH or WITHOUTDepending on the customer's
request, the electronic parking
brake computer may be
configured WITH or WITHOUT
assisted braking when the
engine stops. Refer to the
interpretation of status ET022
Automatic braking
configuration.
2Computer
electrical supplyET001:+ After ignition
feedIgnition off: ABSENT
Ignition on: PRESENTIn the event of a fault on this
status, refer to the interpretation
of status ET001: + after ignition
feed.
3EnginePR015:Engine speed0rpmIn the event of a fault with this
parameter and these statuses,
make sure that the injection
computer is in fact sending
signals (absence of faults DF036
No injection multiplex
transmission and DF052
Multiplex network).
If the fault is still present, run
fault finding on the injection
computer (see 13B, Diesel
injection or 17B, Petrol
injection). ET019:EngineSTOPPED
Other possibilities
depending on the
operating status of the
engine:
RUNNING
- UNDER STARTER
- STALLED