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
37B-77
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 3)
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
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.
4BrakingAC002: BrakingACTIVE or INACTIVE
5ReleaseAC003: ReleaseACTIVE or INACTIVE
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
37B-79
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 (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, 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
notesFault finding
4Wheel speedsPR012:Vehicle speedX = 0 mph (km/h)In the event of a fault on this
parameter, check that the anti-
lock braking system computer
is sending the signal correctly
(absence of faults DF037 No
ABS multiplex signal and
DF052 Multiplex network). If
the fault is still present, run
fault finding on the anti-lock
braking system computer (see
38C, Anti-lock braking
system).
5Electronic
parking brakeET011: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-80
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 (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, 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
notesFault finding
Electronic
parking
brake
(continued)PR005:Force settingIn rest position:
X = 0 N
When applying the brake on a
level surface:
400
pulled for 2 seconds) on a level
surface:
1100
depressing the brake pedal
once when the parking brake
is applied changes the
measured value of the force
(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.
6Vehicle
inclinePR004:Measured
force valueOn horizontal ground the value
is:
-2d°
the slope:
-25d°
the interpretation of parameter
PR003 Slope value PR003: Slope value
37B-81
MR-372-J84-37B000$576.mif
V11
FPA
Vdiag No.: 0C, 04, 08,
0D, 11ELECTRONIC PARKING BRAKE
Fault finding – Conformity check37B
SUB-FUNCTION: AUTOMATIC RELEASE
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 release
configurationET023:Automatic
release
configurationWITH or WITHOUTDepending on the customer's
request, the electronic parking
brake computer may be
configured WITH or WITHOUT
assisted brake release when
the vehicle moves forward.
Refer to the interpretation of
status ET023 Automatic
release 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.
37B-82
MR-372-J84-37B000$576.mif
V11
FPA
Vdiag No.: 0C, 04, 08,
0D, 11ELECTRONIC PARKING BRAKE
Fault finding – Conformity check37B
SUB-FUNCTION: AUTOMATIC RELEASE (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, 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
3Vehicles fitted
with a manual
gearboxET016:Manual gearbox
gear lever
position.Neutral: NEUTRAL
or
Gear engaged: NOT IN
NEUTRALIn the event of a fault with these
statuses, check that the UCH is
sending signals correctly
(absence of fault DF039 No
UCH multiplex signal)
If the fault is still present, run
fault finding on the UCH (see
87B, Passenger compartment
connection unit). ET017:Reverse gear
engagedYES
(lever in reverse gear).
NO
(for other gear lever
positions).
4Vehicles fitted
with an
automatic
gearboxET018:Automatic
gearbox lever
positionDepending on the lever
position:
P, R, N, D or
Manual mode
(manual mode =
sequential gear
selection position).In the event of a fault with these
statuses, check that the
computers concerned are
sending signals correctly
(absence of fault DF038 No
automatic transmission
multiplex signal and DF052
Multiplex network)
If the fault is still present run
fault finding on the computer
concerned. ET017:Reverse gear
engagedYES
(selector lever in R).
NO
(for other gear lever
positions).
37B-83
MR-372-J84-37B000$576.mif
V11
FPA
Vdiag No.: 0C, 04, 08,
0D, 11ELECTRONIC PARKING BRAKE
Fault finding – Conformity check37B
SUB-FUNCTION: AUTOMATIC RELEASE (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, 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
Check or ActionDisplay and
NotesFault finding
5Door opening
switchesET014:Door opening
switchesOPEN:
driver's door
open.
CLOSED:
driver's door closed.
Note:
This status only works
with the driver's door.If the status is not operating as
shown, check that the UCH is
correctly sending the signal
(absence of faults DF039 No UCH
multiplex signal and DF052
Multiplex network). If the status
operates with the passenger door
but not the driver's door,
reinitialise the computer by
running command VP011
Computer calibration and
initialisation (see Replacement
of components) to configure the
correct type of steering (right or
left-hand drive).
If the fault is still present, run fault
finding on the UCH (see 87B,
Passenger compartment
connection unit).