2011 FORD KUGA Ambient air temp

Air Conditioning (A/C) System Health and Safety Precautions
WARNINGS:
Only qualified technicians are allowed to
work on air conditioning (A/C) systems.
Air conditioning (A/C) system components
can become particularly hot or cold.
Make sure that the air conditioning (A/C)
system is at ambient temperature before
carrying out any repair.
When handling refrigerants, always wear
protective goggles and gloves made of
fluoroelastomer. Leather or fabric gloves
are not suitable.
SKIN CONTACT: If liquid refrigerant comes
into contact with the skin, it produces
severe frostbite. Immediately flush affected
areas with plenty of cold running water for
15 minutes. Seek medical attention.
EYE CONTACT: If refrigerant comes into
contact with the eyes, immediately flush
the eyes with plenty of running water for
15 minutes. Seek medical attention.
INHALED: Toxic gases generated when
refrigerant is heated are hazardous to
health. The gases have an irritating smell
and can cause lung damage. The
symptoms can continue for a long time
after having been in contact with the gases.
The gases can cause lung damage even if
the amount of gas in the air is too small to
smell.
Refrigerant is flammable and explosive.
Make sure that refrigerant bottles are not
exposed to temperatures greater than 45°C.
Make sure that the local regulations
regarding work on air conditioning (A/C)
systems are adhered to.
Make sure that refrigerant bottles are
closed properly.
Gaseous refrigerant has a higher density
than air. There is a danger of suffocation
when working close to the ground or in
workshop pits.
Provide adequate ventilation when
handling refrigerant.
Never release refrigerant into the
atmosphere.
Only use special tools, equipment and
lubricants that are approved for the type
of refrigerant being used.
Always follow the manufacturer’s
instructions for the correct servicing unit
operating procedure.
CAUTIONS:
Do not mix refrigerant oils for different
types of refrigerant.
Never mix different types of refrigerant or
equipment intended for them.
Only use refrigerant in gas form when
filling the system through the low-pressure
connection.
Only use refrigerant in liquid form when
filling the system through the
high-pressure connection.
Refrigerant attacks certain plastics. Only
use seals suitable for refrigerant.
If the air conditioning (A/C) compressor is
damaged, the fixed orifice tube can
become blocked with metal particles.
Any sort of blockage in the refrigerant
circuit will damage the air conditioning
(A/C) compressor irreparably.
If the air conditioning (A/C) system has
been opened for a period greater than 2
hours, a new receiver drier must be
installed and the evacuating time to be
increased by a minimum of 2 hours.
NOTE: New air conditioning (A/C) compressors
are delivered prefilled.
NOTE: Refrigerant oil in new air conditioning (A/C)
compressors can contain Teflon, visible as white
particles, which will not harm the system.
G548993en2008.50 Kuga8/2011
100-00- 60
General Information
100-00- 60
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

Ambient Air Temperature Sensor(34 676 0)
Removal
1.
2.
Installation
1.
To install, reverse the removal procedure. G1158234en
2008.50 Kuga 8/2011 412-01-76
Climate Control
412-01-76
REMOVAL AND INSTALLATIONTO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUALE112925x4 E112926

System Operation
Electric Booster Heater
In diesel vehicles which give off little residual heat,
a booster heater is used to heat the passenger
compartment rapidly in the case of low ambient
temperatures.
If the interior temperature has been set to HI, or if
the heater controls have been switched to the
highest setting, the two-zone air conditioning
system sends an "electric booster heater ON"
request signal to the CAN (controller area network)
via the medium speed GEM bus. If a manual air
conditioning system is installed, the signal is
transmitted via a conventional cable connection.
The GEM switches on the electric booster heater
depending on the following parameters:
• Engine coolant temperature is below 60 °C.
• Ambient air temperature is below 10 °C.
• Sufficient generator capacity is available.
The electric booster heater electronics activate
three output stages as a function of a pulse width
modulated signal PWM (pulse width modulation)
generated by the GEM. The output stages switch
the three heating elements of the electric booster
heater ON or OFF individually, whereby the heating
periods of the individual elements can overlap. Due
to the variable switch-on duration, continuously
variable temperature control is possible. The overall
heating power of the three heating elements is
linearly proportional to the PWM signal. If the PWM
signal is below 10% or above 95%, the electric
booster heater is not activated.
The electric booster heater is switched off when
an engine coolant temperature of 70°C or an
ambient air temperature of 20°C is exceeded.
Fuel-fired heater - function diagram G1066982en
2008.50 Kuga 8/2011 412-02-12
Auxiliary Climate Control
412-02-12
DESCRIPTION AND OPERATIONTO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL12345671205304254481201056820108V58911121112E977670

Description
Item
Glow plug
1
Combustion Air Blower
2
Fuel pump
3
Fuel-fired heater on
4
Fuel-fired heater - large regulating step
5
Fuel-fired heater - small regulating step
6 Description
Item
Fuel-fired heater off
7
Blower motor on
8
Flame detection
9
Blower motor off
10
Large regulating step
11
Small regulating step
12
Boost heat mode
When the engine is running, the booster heater
helps the engine to heat the passenger
compartment at low ambient temperatures.
When the coolant temperature reaches 30 °C, the
control unit transmits a switch-on signal for the
passenger compartment blower via the CAN bus.
When the coolant temperature drops, the blower
remains on until the temperature reaches 20 °C
whereupon it is deactivated.
The fuel tank must be filled to at least 14% for the
system to be switched on. If the fuel level drops
below 8% then the system is switched off.
In boost mode, the fuel fired booster heater is only
switched on if all of the following criteria are met:
• Engine speed above 500 rpm. The fuel fired booster heater is not allowed to start up while
the engine is being cranked; this prevents a
shut-down due to low voltage if the battery
charge is low.
• Ambient temperature below 5 °C.
• Fuel level above 14% of total capacity.
• Function is active on the trip computer menu.
One of the following conditions is sufficient to
switch off the booster heater in boost heat mode:
• Engine speed below 500 rpm.
• Ambient temperature above 11 °C.
• Function is active on the trip computer menu.
• Fuel level below 8% of total capacity.
Programmable fuel fired booster heater
The programmable fuel fired booster heater has
two operating modes:
• Instant start
• Programmed start
The heater status is displayed on the instrument
cluster display. The parking heater mode is controlled via a menu in the message centre. The
fuel fired booster heater can be activated and
deactivated via the message centre. (If set to 'Auto'
the system is activated, if set to 'Off' the system is
completely deactivated)
Immediate start-up of the booster
heater
This function enables the fuel-fired booster heater
to be switched on manually when the engine is not
running. This function is activated via the menu on
the driver information system.
The ignition key must be in the II" position before
this menu can be accessed. The timer function of
the booster heater remains active when the ignition
key is in position "0".
After an immediate start-up of the booster heater
it is switched off again after 30 minutes (or if the
fuel level in the fuel tank drops below 8%). The
booster heater stops within 2 minutes of the engine
starting. This leaves enough time to check whether
the switch-on conditions for boost heat mode have
been met, thus preventing the booster heater from
having to switch off and switch back on again. The
heater can be switched off manually at any time
from the menu.
Programmed start-up of the booster
heater
The driver can use a menu to adjust the time at
which the vehicle is to be pre-heated. The following
options are available:
• Time setting. One or two times can be
programmed for each day of the week. It is
possible to program days either individually or
together in groups (Mon-Sun/Mon-Sat/Mon-Fri).
• Time and data setting
With the first option, the fuel-fired booster heater
will start repeatedly without needing to be G1066982en
2008.50 Kuga 8/2011 412-02-13
Auxiliary Climate Control
412-02-13
DESCRIPTION AND OPERATIONTO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

reprogrammed. However, if the engine hasn't been
run since the last programmed start, the fuel-fired
booster heater will not start up the second time so
as to prevent the battery from being discharged.
The length of time required to pre-heat the vehicle
is calculated in the control unit of the fuel-fired
booster heater and is based on two temperature
values:
• Ambient air temperature: this message is taken
from the GEM via the CAN bus.
• Coolant temperature: this is determined via an internal sensor in the fuel-fired booster heater.
The maximum heating time is 30 minutes at an
outside air temperature of -10 °C or lower. The
heating time decreases proportionally with
increasing ambient temperature until the ambient
temperature is between +15 °C and +20 °C. Then
the minimum heating time is 10 minutes. The
parking heater is deactivated at temperatures
above +20 °C.
The sequence for a programmed start of the
booster heater is as follows:
• Two minutes before the start of the maximum heating time the driver information
system/instrument cluster sends an activation
message to the fuel-fired booster heater via the
CAN bus.
• The fuel-fired booster heater calculates the required heating time and, if necessary, sends
a delay request on the CAN bus.
• At the calculated time, the fuel-fired booster heater starts up. The conditions for start-up are:
engine not running and amount of fuel in the
fuel tank is above 14% of maximum.
• When the coolant temperature reaches +30 °C, the control unit of the fuel-fired booster heater
sends a request to switch on the passenger
compartment blower.
• Eight minutes after the programmed switch-off time, the booster heater stops heating mode
and starts a run-on operation to clean the
system's spark plugs.
• Ten minutes after the switch-off time, the post-cleaning operation is complete. The
additional ten minutes run-on time provides
some leeway in case the driver is late arriving.
After a programmed start-up of the booster heater
it is switched off again after the heating time has
elapsed (or if the fuel level in the fuel tank drops
below 8%). The booster heater stops within 2 minutes of the engine starting. This leaves enough
time to check whether the switch-on conditions for
boost heat mode have been met, thus preventing
the booster heater from having to switch off and
switch back on again. The heater can be switched
off manually at any time from the menu.
Whilst the fuel-fired booster heater is in additional
heating mode and/or parking heating mode, the
instrument cluster receives a fuel consumption
signal; this is used to re-calculate the vehicle's
remaining range and fuel consumption data.
Emergency shutoff
In the event of an accident in which the airbags
are deployed, the control unit of the fuel-fired
booster heater receives a message on the CAN
bus from the restraints control module (RCM).
When this message is received, the booster heater
system switches off immediately.
The booster heater control module deactivates the
system and does not respond to further messages
on the CAN bus. The booster heater control module
needs to be activated with WDS.
Component Description
Electric Booster Heater
The electric booster heater consists of three
individual heating elements, which are incorporated
into a single housing. It is controlled by the generic
electronic module (GEM), taking into account the
following factors:
Detailed illustration of fuel-fired heater
G1066982en
2008.50 Kuga 8/2011 412-02-14
Auxiliary Climate Control
412-02-14
DESCRIPTION AND OPERATIONTO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUALE97621

Description
Item
Instrument Cluster
1
PCM (powertrain control module)
2
EHPS (electro-hydraulic power steering)
control module
3
Audio unit
4
GEM (generic electronic module)
5
RCM (restraints control module)
6
PATS transceiver
7 Description
Item
Steering wheel lock module
8
Left-hand steering column switch
9
Fuel level sensor
10
Washer water level warning lamp switch
11
Accelerator pedal position sensor
12
CPP (clutch pedal position) sensor/BPP
(brake pedal position) sensor
13
Lighting control switch
14
System Operation
Instrument Cluster
The instrument cluster contains analog displays
as well as warning and control lamps for displaying
the system status; in addiiton, there is an LCD
indicator field for driver information.
The instrument cluster receives the following
signals from the PCM via the high speed CAN
(controller area network) Bus (HS-CAN):
• Vehicle speed – The PCM receives the necessary signalsfrom the ABS (anti-lock brake system) wheel
sensors from the ABS control unit on the
HS-CAN.
• Engine Coolant Temperature
• Engine oil pressure.
• Engine speed
The instrument cluster receives the following
signals from the GEM via the medium speed CAN
Bus (MS-CAN):
• Ambient temperature
• Brake fluid level
• Handbrake control
• Door latch control
• Liftgate latch control
• High beam control
• Headlamp flasher control
• Direction indicator control
The fuel level signal is sent by the two fuel level
sensors in the fuel pumps in the semitrailer tank,
which is wired to the instrument cluster. The
sensors are connected in series, and the total
resistance is determined from the two individual resistors. The instrument cluster converts the raw
fuel level signal into a damped fuel level value.
The odometer shows the total distance travelled
by the vehicle and is based on the same signal as
is processed for the daily mileage counter. The
value is recorded by the instrument cluster and
stored in a protected EEPROM (Electronically
Erasable Programmable Read Only Memory) area.
This area is a memory protected against
manipulation. If the instrument cluster detects an
error in this memory area, e.g. through damage,
the driver is notified with the "Odometer error"
message.
Message center
The message center is operated using the left-hand
switch on the steering column.
The SET/RESET button is activated to select a
submenu and change the settings. If signal tones
have been activated, a short acoustic signal will
sound each time a button is pressed.
By turning the rotary switch, the different menu
displays can be scrolled through or a setting
selected.
In this display, the navigation system can also
display direction and distance information.
In addition, safety and warning messages can be
displayed in this system, such as "Coolant
overheating", "Engine system error" or "Washer
fluid level too low". In addition to a safety message,
a general warning light (red/yellow) lights up.
G1030770en
2008.50 Kuga 8/2011 413-01-4
Instrument Cluster
413-01-4
DESCRIPTION AND OPERATIONTO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

SECTION 419-10 Multifunction Electronic Modules
VEHICLE APPLICATION:
2008.50 Kuga
PAGE
CONTENTS
DESCRIPTION AND OPERATION
419-10-2
Module Controlled Functions (Overview)...........................................................................
419-10-2
Generic electronics module (GEM)....................................................................................
419-10-2
Emergency function............................................................................................................
419-10-2
Service mode......................................................................................................................
419-10-4
Module Controlled Functions (System Operation and Component Description)................
419-10-4
System Diagram.................................................................................................................
419-10-6
System Operation...............................................................................................................
419-10-6
GEM. ...............................................................................................................................
419-10-6
Component Description......................................................................................................
419-10-6
Battery charging (Smart Charge)....................................................................................
419-10-7
Ignition overload protection.............................................................................................
419-10-7
Headlamp switch-off delay..............................................................................................
419-10-8
Turn signals....................................................................................................................
419-10-8
Interior lighting................................................................................................................
419-10-8
Heated windscreen.........................................................................................................
419-10-9
Heated rear window and heated external mirrors...........................................................
419-10-9
Ambient air temperature.................................................................................................
419-10-9
Brake fluid level...............................................................................................................
419-10-9
Automatic headlamps.....................................................................................................
419-10-9
Combined rain sensor/light sensor.................................................................................419-10-10Windshield wash/wipe system........................................................................................
419-10-10Anti-theft ..........................................................................................................................
419-10-10Electric booster Heater...................................................................................................
419-10-10Climate control................................................................................................................
DIAGNOSIS AND TESTING 419-10-11
Generic Electronic Module (GEM)......................................................................................
419-10-11
Description of operation......................................................................................................
419-10-12
Inspection and Checking....................................................................................................
REMOVAL AND INSTALLATION 419-10-14
Generic Electronic Module (GEM)......................................................................................
419-10-15
Lighting Control Module (LCM)........................................................................................... 419-10-1
Multifunction Electronic Modules
419-10-1
.
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

Description
Item
HS CAN
1
DLC2
MS CAN
3
Instrument cluster (gateway)
4
Front windshield wiper motors
5
GEM6
Rear window wiper motors
7
Indicator/heated windshield
8
Indicator/heated rear window
9 Description
Item
Mini-liftgate latch motor
10
Liftgate latch motor
11
Electric booster Heater
12
Front wiper windscreen washer pump
13
Rear wiper windscreen washer pump
14
Headlamp
15
Courtesy Lighting
16
Alarm horn
17
System Operation
GEM.
The following functions are controlled or performed
by the GEM at a battery voltage of between 9 and
16 volts:
• Current distribution
• Battery charging (Smart Charge)
• Ignition overload protection
• Headlamp switch-off delay
• Turn signals
• Interior lighting
• Heated windscreen
• Heated rear window and heated external mirrors
• Ambient air temperature
• Brake fluid level
• Automatic headlamps
• Combined rain sensor/light sensor
• Windshield wash/wipe system
• Speed control – reads the speed control switches andtransmits signals on the CAN data bus
• central door locking – transmits signals on the CAN data bus
• Anti-theft
• Electric booster Heater
• Climate control
• Parking brake –(monitors the switch and transmits the signal
on the CAN data bus
• Communication via the medium-speed CAN data bus Component Description
Battery charging (Smart Charge)
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.
The alternator load is signaled to the PCM
(powertrain control module) in order to provide it
with an early indication when an electric component
is to be switched on or off, thereby also providing
information about imminent changes to the amount
of torque demanded by the alternator. By
evaluating this information the PCM is capable of
increasing the stability of the engine under idling.
The two remaining functions of the Smart Charge
system are controlled by the GEM. G1030788en
2008.50 Kuga 8/2011 419-10-6
Multifunction Electronic Modules
419-10-6
DESCRIPTION AND OPERATIONTO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL