Ford Fiesta (2011 year). Manual — part 61

Handles, Locks, Latches and Entry Systems – System Operation

and Component Description

Control Diagram

System overview

E102872

MS-CAN

2

3

4

5

6

9

10

7

8

B

A

A

1

Description

Item

Tailgate release switch

1

Lock/unlock button - door handle

2

RF remote receiver

3

Description

Item

GEM (generic electronic module)

4

keyless vehicle module

5

Electronic steering lock unit

6

G1071735en

501-14-

5

Handles, Locks, Latches and Entry Systems

501-14-

5

DESCRIPTION AND OPERATION

201

Description

Item

Passive vehicle key

7

Door locking units

8

External antennae - door handle
Comments:

2 units, integrated into the front door
handles

9

External antennae - tailgate

10

Description

Item

Radio signal
Comments:

from one of the external antennae to
passive vehicle keys

A

Radio signal
Comments:

from passive vehicle key to radio
frequency receiver

B

System Operation

With the keyless vehicle system, there is a choice
between individual door unlocking and global
unlocking. The programming process is the same
as on vehicles without a keyless vehicle system.

Unlocking the vehicle

Exterior antennas: approximate detection range (in
mm)

E91094

mm

1800

1700

1400

2000

1700

1700

1500

2000

1400

1700

1800

2000

2000

Three exterior antennas are installed on the
vehicle:

• one in the driver door handle,

• one in the passenger door handle,

• one under the luggage compartment/tailgate

(behind the bumper).

When a door handle lock/unlock button or the
tailgate release switch is operated, the
corresponding external antenna emits a low
frequency signal.

The passive vehicle key is thereupon activated and
emits an encoded radio signal.

The encoded radio signal from the passive key is
received by the radio frequency receiver.

The radio frequency receiver transfers the signal
to the keyless vehicle module.

If the keyless vehicle module recognizes a valid
key signal, the actuated door or liftgate is unlocked.
The Unlocking is performed by the GEM. For this
the GEM receives an appropriate signal via the
MS-CAN (controller area network) from the keyless
vehicle module.

The electronic steering column lock unit is unlocked
as soon as the driver's door is opened (signal from
the door contact switch).

If more than 45 seconds elapse after the vehicle
is unlocked but without the ignition being switched
on, then the electronic steering column lock unit is
re-locked.

The electronic steering column lock unit re-locks
if a time of 45 seconds has elapsed after the
ignition is switched off.

If the vehicle goes over 5 days without being
unlocked, the system enters energy saving mode.
This mode prevents excessive loading of the
vehicle battery. In this mode, the response time of
the keyless vehicle system during unlocking is
slightly longer. The energy saving mode is
deactivated again if the vehicle is unlocked once
after more than 5 days.

Locking the vehicle

There are two options for central locking of the
vehicle:

• actuating the door lock button once,

• actuating the relevant button on the radio remote

control of the passive key once.

In order to activate double locking, the door lock
button or the button on the remote control must be
pressed twice within 3 seconds.

G1071735en

501-14-

6

Handles, Locks, Latches and Entry Systems

501-14-

6

DESCRIPTION AND OPERATION

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When the central or the double locking system has
been activated, the vehicle remains locked for 3
seconds. During this time the vehicle cannot be
opened using the door handle lock/unlock button,
tailgate release switch or the remote control.

This allows the driver to check whether the vehicle
is locked. This delay time can be changed or
switched off via IDS (Integrated Diagnostic
System).

The global locking function can only be activated
via the remote control. To do this, the lock button
and the unlock button of the remote control must
be pressed for about 4 seconds.

Lock/unlock button - driver's door handle:

• Depending on what is set, this button either

unlocks the driver's door or the whole vehicle.

Lock/unlock button - passenger's door handle:

• Regardless of what is set, the whole vehicle will

be unlocked when this button is pressed.

Note, when locking the vehicle with another key,
if a key remains in the vehicle:

• In this case the key which remains in the vehicle

will be deactivated after about one minute.
Background: If an unauthorized person enters
the vehicle, the engine cannot be started
because the deactivated passive key does not
send a radio signal.

• The passive key remaining in the vehicle will be

re-activated by pressing one of the buttons on
the remote control once.

Emergency unlocking/locking

E102879

If the keyless vehicle system is unable to detect
the passive key, the vehicle can be unlocked using
the emergency key. The emergency key is
integrated in the passive key.

For detailed instructions on assembly of the
emergency key, please refer to the Owner's
Handbook.

Only the driver door features a conventional door
lock for the purpose of emergency unlocking.

G1071735en

501-14-

7

Handles, Locks, Latches and Entry Systems

501-14-

7

DESCRIPTION AND OPERATION

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Start the engine

E102880

MS-CAN

2

3

4

5

6

10

7

B

A

HS-CAN

1

8

9

Description

Item

Start/stop button

1

BPP

2

RF remote receiver

3

Instrument cluster

4

keyless vehicle module

5

Description

Item

Electronic steering lock unit
Comments:

with transceiver for emergency start

6

Passive vehicle key

7

PCM (powertrain control module)

8

ABS (anti-lock brake system)/ESP module

9

G1071735en

501-14-

8

Handles, Locks, Latches and Entry Systems

501-14-

8

DESCRIPTION AND OPERATION

201