air condition RENAULT SCENIC 2013 J95 / 3.G Electronic Parking Brake Service Manual

37B-67
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
DF058
PRESENT
OR
STOREDPARKING BRAKE MOTOR CURRENT
1. DEF: Inconsistent current value
NOTESConditions for applying the fault finding procedure to a stored fault:
Apply the fault finding procedure even if the fault is stored.
Special notes:
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).
Check to see if battery polarity has been inverted, if this is the case, clear the fault and check that the electronic
parking brake computer is operating correctly (see System operation).
If the fault is still present, contact the Techline without clearing the fault.
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_DF058/FPA_V04_DF058/FPA_V08_DF058/FPA_V0D_DF058/FPA_V11_DF058

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-69
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults37B
DF059
CONTINUED
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 network test did not find the faulty connection, carry out a conformity check to check that the
status from the Protection and Switching Unit computer is present and correct (ET016, PR015, PR017).
Check the gearbox contacts.
If the status and parameters shown here are not correct, carry out fault finding on the Protection and Switching
Unit (see 87G, Engine compartment connection unit).
If the fault is still present, disconnect the Protection and Switching Unit computer connector to check that the
connector and its clips (terminals) are in good condition, especially the multiplex track clips (see the wiring
diagram of the Protection and Switching Unit fitted to the vehicle).
Replace the clips 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.
FPA
Vdiag No.: 0C, 08, 0D,
11

37B-70
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
DF073
PRESENT
OR
STOREDCOMPUTER
1. DEF: Internal electrical fault
NOTESPriority when dealing with a number of faults:
This fault must be dealt with first.
Conditions for applying the fault finding procedure to a stored fault:
Deal with this fault as if it were present.
Special notes:
The electronic parking brake computer has detected a fault during standby mode
(ignition off, vehicle doors and windows closed and lever warning light off)
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 fault.
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_DF073/FPA_V04_DF073/FPA_V08_DF073/FPA_V0D_DF073/FPA_V11_DF073

37B-71
MR-372-J84-37B000$576.mif
V11
37B
ELECTRONIC PARKING BRAKE
Fault finding – Conformity check
MAIN SCREEN
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, make sure 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 notesFault finding
1Parking brake
operation statusET024:System operationCUSTOMER MODEIf the status displays FACTORY
MODE, the computer is not
operational.
To enter CUSTOMER MODE,
initialise the computer again, by
running command VP011
Computer calibration and
initialisation (see
Replacement of components).
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 supply.
PR001:Battery voltage9.6V not within this range, check the
insulation, continuity and the
absence of interference
resistance on the computer
supplies and earths (see wiring
diagram). If the fault is still
present, carry out fault finding
on the charging circuit (see
Technical Note 6014A,
Checking the charging
circuit).
FPA_V0C_CCONF / FPA_V04_CCONF / FPA_V08_CCONF / FPA_V0D_CCONF / FPA_V11_CCONF
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
MR-372-J84-37B000$576.mif

37B-72
MR-372-J84-37B000$576.mif
V11
FPA
Vdiag No.: 0C, 04, 08,
0D, 11ELECTRONIC PARKING BRAKE
Fault finding – Conformity check37B
MAIN SCREEN (CONTINUED 1)
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, make sure 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
notesFault finding
3Electronic
parking brakePR005: Force setting In rest position:
X = 0 N
When applying the brake
on a level surface:
400 < X < 550 N
When fully applied (lever
fully pulled for 2 seconds)
on a level surface:
1100 < X < 1150 N
Note: depressing the
brake pedal once when
the parking brake is
applied changes the
measured force value
(change in the tension of
the brake cables) and the
parking brake may be
over-applied.
Interpretation of these
parameters is only valid
without any pressure on
the brake pedal.The difference between the
reference and measured
values must not be more than
-50 N or + 100 N. If the
measured value does not
reach or exceeds the reference
value (mechanical or electrical
fault with the control), the
electronic parking brake
computer will detect a fault
(DF025 Vehicle movement
with maximum application,
DF049 Brake application or
DF050 Mechanical jamming).
If one of these three faults is
displayed by the diagnostic
tool, use the relevant
interpretation. PR004:Measured force
value

37B-73
MR-372-J84-37B000$576.mif
V11
FPA
Vdiag No.: 0C, 04, 08,
0D, 11ELECTRONIC PARKING BRAKE
Fault finding – Conformity check37B
MAIN SCREEN (CONTINUED 2)
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, make sure 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
NotesFault finding
Electronic
parking brake
(continued)ET011:Parking brakeNo movement of the
lever:
INACTIVE
When released:
Released (while
releasing, then
INACTIVE).
When applying the brake:
STATUS 1 Static
braking
During emergency
braking:
STATUS 2 Dynamic
braking (over 6 mph
(10 km/h)).
When the system is
faulty:
DEFECTIVEIf the status does not operate
as specified, refer to the
interpretation of fault DF043
Parking brake motor.

37B-74
MR-372-J84-37B000$576.mif
V11
FPA
Vdiag No.: 0C, 04, 08,
0D, 11ELECTRONIC PARKING BRAKE
Fault finding – Conformity check37B
SUB FUNCTION: PARKING
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, make sure 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
1Computer
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
supply.
PR001:Battery voltage9V parameter, check the insulation,
continuity and the absence of
interference resistance on the
computer supplies and earths
(see wiring diagram). If the fault is
still present, carry out fault
finding on the charging circuit
(see Technical Note 6014A,
Checking the charging circuit).
ET009:Redundant
braking switch
positionLever released:
INACTIVE
Lever pulled to the
second contact (end of
travel):
ACTIVEIf the status does not operate as
specified, use the interpretation
of status ET009 Redundant
braking switch position.
ET010:Release switch
positionLever in rest position
RELEASED
Lever fully pulled and
releasing switch
pressed: PRESSEDIf the status does not operate as
specified, apply the
interpretation of status ET010
Releasing switch position.

37B-75
MR-372-J84-37B000$576.mif
V11
FPA
Vdiag No.: 0C, 04, 08,
0D, 11ELECTRONIC PARKING BRAKE
Fault finding – Conformity check37B
SUB-FUNCTION: PARKING (CONTINUED 1)
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, make sure 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
2Parking brake
control leverET008:Braking switch
positionLever released:
INACTIVE
Lever pulled to the first
contact (approximately
3mm
travel):
ACTIVEIf the status does not operate as
specified, apply the
interpretation of status ET008
Brake application switch
position.
ET009:Redundant
braking switch
positionLever released:
INACTIVE
Lever pulled to the
second contact (end of
travel):
ACTIVEIf the status does not operate as
specified, use the
interpretation of status ET009
Redundant braking switch
position.
ET010:Release switch
positionLever in rest position
RELEASED
Lever fully applied and
release switch pressed:
PRESSEDIf the status does not operate as
specified, apply the
interpretation of status ET010
Releasing switch position.

37B-76
MR-372-J84-37B000$576.mif
V11
FPA
Vdiag No.: 0C, 04, 08,
0D, 11ELECTRONIC PARKING BRAKE
Fault finding – Conformity check37B
SUB-FUNCTION: PARKING (CONTINUED 2)
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, make sure 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 notesFault finding
3Parking brake
assistPR005:Force setting In rest position:
X = 0 N
When applying the brake
on a level surface:
400 < X < 550 N
When fully applied (lever
fully pulled for 2 seconds)
on a level surface:
1100 < X < 1150 N
Note: depressing the
brake pedal once when
the parking brake is
applied changes the
measured force value
(change in the tension of
the brake cables) and the
parking brake may be
over-applied.
Interpretation of these
parameters is only
valid without any
pressure on the brake
pedal.The difference between the
reference and measured
values must not be more than
-50 N or + 100 N.
If the measured value does not
reach or exceeds the reference
value (mechanical or electrical
fault with the control), the
electronic parking brake
computer will detect a fault
(DF025 Vehicle movement
with maximum application,
DF049 Brake application or
DF050 Mechanical jamming).
If one of these three faults is
displayed by the diagnostic
tool, use the relevant
interpretation. PR004:Measured force
value