Ford Galaxy / Ford S-MAX. Manual — part 867

The central locking system locks all doors, the liftgate and the tank flap, so that none of
these can be opened from the outside of the vehicle. The locking of the tank flap is linked
to the locking/unlocking of the driver's door.

On vehicles with door modules in the front and rear doors, all door lock motors and door
lock switches are controlled via the door locking modules. The signals from the door contact
switches are forwarded directly to the GEM.

On vehicles without rear door modules the door lock motors are also directly actuated by
the GEM.

Vehicles without rear door modules only have manually operated windows in the rear.

Vehicles with 4 door modules can be identified by the two-stage window regulator switches
in the front and rear.

The central locking is actuated if one of the following conditions is satisfied:

A key is inserted into one of the door locks and turned to the "locking" position.
The locking button on the remote control is pressed once.
The inside door handle is pressed (if equipped).

If one of the doors is not properly closed when the central locking function is performed
then all doors are locked and unlocked again. This procedure is signaled acoustically.

The turn signal lamps flash twice when the vehicle has been successfully centrally locked.

Locking/unlocking – double locking

The double locking system locks all doors so that they cannot be opened from outside the
vehicle. In addition to the central locking function, the double locking system also
disconnects the door opening levers from the locking mechanism. This means that the
doors can no longer be opened from inside the vehicle.

The double locking mechanism only works when the ignition key is not in the ignition lock.

The double locking is activated if one of the following conditions is satisfied:

A key is inserted into a door lock and turned to the "locking" position twice within 3
seconds.
The locking button on the remote control is pressed twice within the space of 3 seconds
(if the vehicle is configured for activation of the double locking upon a single press of the
locking button on the remote control).

If the ignition key has been turned to position "I" then the vehicle is centrally locked but
not double-locked.

If on a double-locked vehicle the corresponding ignition key is inserted into the ignition, the
system switches over from double locking to central locking.

Double locking is not indicated by additional flashing of the turn signal lamps.

The turn signal lamps already flash twice after successful central locking.

Locking/unlocking – central unlocking

The central locking system unlocks all doors of the vehicle and the fuel filler flap.

The central locking is actuated if one of the following conditions is satisfied:

The door lock is turned to the unlocking position.
The release button on the radio remote control is pressed once (provided that the vehicle
is not configured for unlocking via the driver's door lock).
The release button on the radio remote control is pressed twice within 3 seconds
(provided that the vehicle is not configured for unlocking via the driver's door lock).

The door opening lever is pulled to the unlocking position on a centrally locked vehicle.

If the vehicle has been configured for unlocking via the driver's door lock and the
"unlocking" button on the remote control is only pressed once, then just the driver's door
and the tank flap are unlocked.

If the "unlocking" button on the remote control is then pressed again within 3 seconds the
remaining doors are unlocked via the central unlocking function.

If the vehicle was double locked beforehand, then the other doors are centrally locked,
whereas the driver's door is unlocked.

Unlocking of the vehicle with the ignition switched off, is confirmed by one long flash of the
turn signal lamps.

Locking/unlocking - automatic re-locking function

The automatic re-locking function returns the locking system of the vehicle to its last
status if it was centrally locked or double locked and the following conditions are
satisfied:

The vehicle is unlocked via remote control.
Neither a door nor the liftgate has been opened within 45 seconds.
The ignition is not switched on.

Liftgate

The liftgate unlocking mechanism unlocks the liftgate if the ignition switch is either in
position "0" or position "1" and one of the following conditions is met:

The liftgate unlocking button on the outside of the vehicle is pressed, provided the
vehicle has been unlocked either via the driver's door lock or centrally.
The liftgate unlocking button on the remote control is pressed once (provided the vehicle
has been configured for liftgate unlocking after a single press of the button on the remote
control).
The liftgate unlocking button on the remote control is pressed twice within 3 seconds (if
the vehicle has not been configured for liftgate unlocking after a single press of the
button on the remote control).

Smart Charge system

In addition to the familiar functions, the Smart Charge system also performs the
following functions:

Automatic deactivation of non-critical high power electrical consumers when the battery
voltage is low in order to reduce the level of current drawn.
Automatic activation of non-critical high power electrical consumers when the battery
voltage is excessively high in order to protect components which are sensitive to
increased voltages.

The battery charging current is optimized through continuous calculation of the battery
temperature and monitoring of the alternator output voltage.

By receiving the forwarded alternator load signal, the PCM is given early warning whenever
an electric consumer is switched on or off. This means that the PCM receives information
about imminent changes in the torque drawn by the alternator. By evaluating this
information the PCM can provide a higher level of idling stability.

The two remaining functions of the Smart Charge System are controlled by the GEM.

Electrical consumers are switched off due to low voltage when the GEM determines (on the
basis of the message received from the PCM on the CAN bus via the instrument cluster)

that the battery voltage has dropped below the threshold.

When the threshold for low battery voltage is reached the GEM automatically
deactivates the following consumers - in this order and with a gap of 5 seconds
between each:

Electric booster heater (vehicles with diesel engines)
Heated door mirror
Heated rear window
Heated windscreen

If the battery voltage rises back above the lower threshold then the GEM re-enables all of
the electrical consumers which were previously disabled. They then have switched off
status and must be switched back on by the driver.

Electrical consumers are switched on due to excessively high voltage if the GEM determines
that the battery voltage is above the threshold for overvoltage and the charge control lamp
has been switched on.

When the threshold is reached the GEM automatically activates the following
consumers - in this order and with a gap of 5 seconds between each:

Heated rear window
Heated door mirror
Electric booster heater (vehicles with diesel engines)
Blower motor

If the battery voltage drops back below the threshold then the GEM automatically
deactivates any consumers that were switched on. However, if they were switched on by
the driver before the automatic activation, they will then be switched on again in turn with
a 5-second time interval.

Ignition overload protection

The ignition overload protection intermittently disconnects certain circuits in order to
restrict the current being drawn from the battery while the starter motor is operating.

The position of the ignition switch is transmitted by the instrument cluster on the MS CAN
bus.

The ignition overload protection relay which is integrated in the battery junction box is
activated by the GEM when the message "ignition switch position III" is received from the
instrument cluster.

The activated ignition overload protection then switches off the following electrical
consumers:

EXTERIOR LIGHTING
Windscreen/rear window wash/wipe systems
Backup lamps
Heated washer nozzles
Control unit for gas discharge headlamps
Seat heating
Electric window regulators

Electric window regulators

The ignition key must be in position "II" before the electric window regulators can be
operated. The electric window regulator open or close the door windows when the switch is
moved to the corresponding position.

The movement of the window glass stops when the window regulator button is released or

when the ignition key is moved from position "II" to position "I", "III" or "0".

The driver door window can only be operated via the driver door switch; the other windows
can be opened and closed via the driver door switch panel or the relevant door switch.

If the window in the front passenger door or in one of the rear doors is operated via the
switch in the switch panel on the driver's door, the driver's door module receives the signal
via a cable from the switch and forwards it on the CAN bus to the relevant door module,
which then moves the corresponding window in the appropriate direction.

The disabling switch in the switch panel on the driver's door can be used to disable the
window regulator switches in the rear doors.

Speed control

The GEM acts as the gateway for the signals of the speed control system. The signals which
come from the switch unit in the steering wheel are converted in the steering wheel module
and sent via the LIN bus to the GEM.

From there the message is sent on to the PCM via the HS CAN bus.

The PCM then adjusts the power output of the engine to maintain the selected vehicle
speed.

Brake fluid level

If the brake fluid level is normal the brake fluid level switch is closed and sends a ground
signal via cable to the GEM.

If the brake fluid level is below the threshold and the level switch opens for more than two
seconds then the GEM generates a CAN signal which it sends to the instrument cluster.

Power management

The power management system offers various modes which can be used in different
situations to ensure an effective power supply to individual modules.

The power management function is integrated in the GEM.

Four different vehicle modes are used depending on the operating status of the vehicle:

Factory mode:

Factory mode is activated while the vehicle is in production. In this mode, power supply
is reduced to a minimum by switching off relays. Once the vehicle leaves the factory the
factory mode is deactivated, and transport mode is activated instead.

Transport mode:

Transport mode is activated while the vehicle is en route from the factory to the dealer.
In this mode, the vehicle can be driven without any adverse effects on vehicle safety.
Individual modules and electrical systems (e.g. anti-theft alarm system, clock and
remote control) are deactivated.
This ensures that the battery is sufficiently charged when the vehicle is handed over to
the customer.

If the engine is started while the vehicle is in transport mode then the transport mode is
temporarily suspended. It is reactivated once the ignition is switched off.

Transport mode must be deactivated by the dealer. This is done when the ignition is
switched off by pressing the brake pedal five times and the hazard flasher switch twice
within 10 seconds.

When the transport mode is deactivated the GEM automatically changes into normal mode.