Ford Cargo 2017, Owner'S Manual

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4
OPERATION
Braking
Reverse test request
There are some kind of failures which
can’t be detected by EBS directly, only via
monitoring of the behavior of the vehicle
and the brake system. These monitoring
functions are called plausibility checks. If a
plausibility failure is detected by the EBS, it
can be restored according to the legal
requirements only if EBS carries out system
test (called reverse test) and the result of the
test is positive (operation of the brake system
is correct). It means when the cause of the
failure is eliminated (it was just a temporary
failure, or the vehicle is repaired), than a
reverse test has to be carried out.
To make EBS to be able to carry out the
reverse test, the driver has to activate the
brake pedal once under a defined condition.
When EBS requires such a pedal activation to
restore the failure, it will send a request with
the following failure code:
Path:
253
(Vehicle brake system)
Type:
201
(Press brake pedal request)
(SPN 64969)
It is highly recommended to give a clear text
on the instrument cluster to the driver when
this pedal activation requested and the user
manual of the vehicle should describe clearly
the conditions how to do it.
The pedal activation has to be carried out on
the following way:
After fault detection, the ignition must be
switched off and on in order to reset EBS:
• The ignition-off phase must be at least 5
sec., to allow power-down of EBS, and
• During ignition-off phase the brake pedal
must be released, to avoid braking in
wake-up mode without reset of EBS.
• After ignition is switched on, for at least
7 sec.:
• The vehicle must be in stillstand, and
• Brake pedal must be released.
• Supply voltage EBS sufficient for
electronically controlled braking.
• Parking brake should be released in case
of TCM failures.
• Warning lamp is on, system restriction is
active.
• Brake pedal actuation, with the following
features:
• During standstill, the driver is instructed
via dashboard symbol "braking" to do a
braking.
• Pedal actuation does not start before 7
sec. after ignition is switched on.
• Pedal actuation must increase to full
brake position, without any condition.
• Full brake position must be hold for at
least 3 sec..
• Pedal decrease until fully release, without
any condition.
• Brake pedal must be fully released for at
least 3 sec..
• Warning lamp is on. System restriction
is not active during braking. Braking is
controlled by electronic pressure control.
Brake pedal test is successful:
• No fault is detected during the braking.
• Warning lamp is switched off, system
restriction remains not active.
Brake pedal test is not successful:
• A fault is detected during the braking, or
• Maximum braking time of 25 sec. is
expired, or
• The vehicle starts moving.
• Warning lamp remains on, system
restriction is activated.
• An ignition reset is needed to start brake
pedal test again.
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