Ford Galaxy / Ford S-MAX. Manual — part 866

phases.

The dimmer function is not used if the interior lighting is switched off by the battery saving
function after 30 minutes.

Heated windscreen

The heated windshield is switched on by the GEM under the following conditions:

The heated windshield switch is operated, the ignition switch is in position "II" and the
charge warning lamp is switched off.
The "Defrost" function of the EATC has been activated, the ignition switch is in position
"II" and the charge warning lamp is switched off.

The heated windshield is switched off by the GEM under the following conditions:

More than 4 minutes have elapsed since the switch for the heated windshield was
operated.
The ignition switch is turned to the "I" or "0" position.
The "Defrost" function is deactivated or the switch for the heated windshield is pressed
again while the heated windshield is still switched on.
The charging system warning indicator is switched on.

Heated rear window and heated external mirrors

The heated rear window and the heated exterior mirrors are switched on by the GEM
under the following conditions:

The heated rear window switch is operated, the ignition switch is in position "II" and the
charge warning lamp is switched off.
The "Defrost" function of the air conditioning has been activated, the ignition switch is in
position "II" and the charge warning lamp is switched off.

On vehicles with door modules the GEM transmits the request signal for switching on the
exterior mirror heating via the CAN bus to the door modules.

The heated rear window and the heated exterior mirrors are switched off by the GEM
under the following conditions:

More than 14 minutes have elapsed since the switch for the heated rear window was
operated.
The ignition switch is turned to the "0" or "I" position.
While the heated rear window is switched on, the switch for the heated rear window is
pressed or the "Defrost" function of the air conditioning is deactivated.
The battery voltage has dropped below 10.3 V for more than 20 seconds (power
management strategy). Manual requests for switching on the heated rear window by
pressing the switch, are ignored at this time.

If the battery voltage returns to the normal range then the disabling of the heated rear
window is cancelled - the heated rear window is then in a switched-off state.

On vehicles with door modules the GEM transmits the request signal for switching off the
exterior mirror heating via the CAN bus to the door modules.

Windshield wash/wipe system

The windshield wash/wipe system will only operate if the ignition switch is in the position
"I" or "II".

Four wipe functions are available: "Single Wipe", "Speed 1", "Speed 2" and "Intermittent
Wipe" or "Automatic Wipe" (depending on the specification of the vehicle)".

In "Speed 1" or "Speed 2" mode, the wipers are operating continuously at either normal

speed or fast speed.

When the intermittent wipe mode is switched on the windshield wipers operate at
normal speed with the following wiper delays:

Wiper delay 1: 1 second
Wiper delay 2: 3.5 seconds
Wiper delay 3: 6 seconds
Wiper delay 4: 9.5 seconds
Wiper delay 5: 15.5 seconds
Wiper delay 6: 22 seconds

NOTE: In the event of a failure, the default time for the wiper delay is 3.5 seconds.

When the windshield washer switch is operated washer fluid is sprayed onto the windshield.
After a short delay designed to protect the wiper blades the wipers perform 2 or 3 wipes at
low speed.

If when the windshield washer switch is activated the windshield wipers are switched off, a
single wipe is performed 4 seconds after the wipers have returned to the home position
after performing the 2 or 3 wipes.

If the wipers are set to intermittent wipe and the window washer switch is actuated, the
wipes are only performed if no further wipe request has been selected via a shorter delay
time within the 4-second delay time.

The post wipe function on the windshield ensures that any water remaining on the
windshield after washing is wiped away. It is only required if the wipers are switched off or
they are set to intermittent mode.

Rain sensor

CAUTIONS:

The automatic wipe function must be switched off before the vehicle is taken through

a car wash.

If the windshield is iced up, the wipers may only be activated by the rain sensor after

the windshield has been completely defrosted.
NOTE: The rain sensor is an optical measuring instrument. Contamination such as oil,
grease or dust impair its correct operation. Before switching on the automatic windshield
wipers, the windshield must be clean in the area of the rain sensor.

The rain sensor is built into a housing which is mounted behind the rear view mirror on the
windshield.

The rain sensor (1) consists of an opto-electronic measuring and evaluation circuit. The
sensor can calculate the amount of precipitation falling on the windshield and request that
the windshield wipers are switched on.

On the basis of the information provided by the rain sensor, the windshield wipers are then
set to the required wipe speed by the generic electronic module (GEM).

Mode of operation of the rain sensor

Description

Raindrop

LED

Lens

Photodiode

The rain sensor consists of three optical components:

an LED
a photodiode
a lens

The photodiode emits an infrared light beam of known intensity; the emitted light exits
through the lens and is reflected by the windshield.

The reflected light beam enters back through the lens and then reaches the photodiode.
The corresponding value taken without moisture on the windshield is used as the reference

Item

1

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3

4

Part Number

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value for the automatic calibration process.

Subsequent deviations from this value cause the windshield wipers to be switched on.

If rain lands on the windshield then the light reflected by the windshield has a lower
intensity. This loss of intensity is registered by the photodiode and, proportionally to the
loss of intensity, the module switches on the windshield wipers with the required wipe
speed (in intermittent or continuous mode).

On vehicles built up to 07/2006 the wipers are only activated after switching on the
automatic wipe function (wiper lever to intermittent position) when the water has been
detected on the windshield by the rain sensor.

On vehicles built from 07/2006 a single confirmation wipe is performed after the automatic
wipe function has been switched on.

It is not necessary to calibrate the rain sensor, as this has already been done at the factory.

The sensitivity of the rain sensor can be changed by adjusting the control resistor for
the intermittent mode of the windshield wipers.

Adjusting ring position - wide symbol: High sensitivity

The wipers wipe even if only a small amount of water has been measured on the

windshield.
Adjusting ring position - narrow symbol: Low sensitivity

The wipers only wipe if a large amount of water has been measured on the windshield.

Rear window wash/wipe system

The rear window wash/wipe system will only operate if the ignition switch is in the position
"II".

If the windshield wiper switch is in the "Off", "Intermittent mode" or "Automatic wipe" (no
wiping or low speed) position, then the wipe interval of the rear window wiper is 10
seconds.

If the switch for the rear window washer is pressed, then washer fluid is sprayed onto the
rear window, and the wiper operates continuously at low speed. When the switch is
released the rear window wiper performs another 2-3 wipes.

If reverse gear is engaged and the windshield wiper switch is in the normal, high speed or
automatic windshield wiper (wiping at high speed) position, the rear window wiper will
operate continuously until the gearshift lever is moved back to the neutral position.

Headlamp washer system

The headlamp washer system will start to operate when the windshield washer function is
activated if, at the same time, the light switch is set to "dipped beam" or the headlamps
have been switched on by the "automatic headlamps" function. Electrical control is
performed by the headlamp washer system relay which itself is controlled by the generic
electronic module (GEM).

In order to prevent excessive water consumption, the headlamp washer system is only
activated every fourth time the windshield wash/wipe switch is operated, provided the time
elapsed since the first operation of the washer system does not exceed 10 minutes. If the
windshield wash/wipe switch is activated again after 10 minutes the the headlamp washer
system is activated and the time encoder is restarted.

If the wash water level warning lamp on the instrument cluster comes on because the wash
water level in the washer reservoir is too low then the headlamp washer pump is no longer
activated until the washer reservoir is topped up.

central door locking

Locking/unlocking – central locking

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