
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

37B-26
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults37B
DF025
CONTINUED
2. DEF
NOTESSpecial notes:
– This fault indicates that the electronic parking brake
computer detected front wheel movement although the
parking brake was applied with maximum force.
When this fault appears on its own it is an operating warning
that indicates that the vehicle's conditions of use are on the
limit (the braking system and parking brake are not normally
the cause).
This fault is an operational warning. Check the context in
which it appears.
It may appear during:
– an application request, whilst the vehicle is still being
driven,
– forced assisted release when starting, when the
starting conditions have not been met,
– parked on a steep slope with slippery surface,
– incorrect use of a roller test bench which drives the
front wheels (MOT test).
If the fault is stored, refer to the statuses and
parameters when it appears. Explanation of counters:
seeIntroduction section.
If the fault is stored and PR018 = 0 and PR022 > 25 clear
the fault: do not take this fault into account.
Using the diagnostic tool, display the wheel speed parameters on the parameters screen.
When stationary, these parameters must show 0 mph. If this is not the case, carry out fault finding on the anti-
lock braking system (see 38C, Anti-lock braking system).
Check that the parking brake mechanical tensioning line is correct:
– Parking brake cables correctly fitted.
– Good condition of the parking brake cables (no seizing or deterioration).
– Conformity, condition and proper functioning of the rear brake callipers.
– Condition and conformity of rear brake pads.
Carry out the necessary repairs.
Check that the vehicle is not overloaded.
Check that the vehicle's tyres are not bald.
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.: 0D, 11

37B-27
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: The computer has detected vehicle movement when parked (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.
Special notes:
– this fault indicates that the electronic parking brake computer detected movement
of the vehicle although the parking brake was applied.
– if this fault is present, with the ignition on, the buzzer on the instrument panel is
activated (when the vehicle is moving with the parking brake applied).
This fault is an operational warning. Check the context in which it appears.
It may appear during:
– an application request, whilst the vehicle is still being driven,
– forced assisted release when starting, when the starting conditions have not
been met,
– parked on a steep slope with slippery surface,
– incorrect use of a roller test bench (MOT test).
Only for Vdiag 08 and 0C:
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_DF025/FPA_V04_DF025/FPA_V08_DF025
FPA
Vdiag No.: 0C, 04, 08

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

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