2011 FORD KUGA CAN BUS

Control Diagram symbols - Description and
Operation procedures
These symbols provide further information on the
type of connectivity, direction of flow or type of data
bus of a system.
E99427
1
2
3
4
Description
Item
Mid-speed Controller Area Network (CAN)
1
High-speed Controller Area Network
(CAN)
2
Local Interconnect Network (LIN)
3
Wires crossing not connected
4
G955392en2008.50 Kuga8/2011
100-00- 40
General Information
100-00- 40
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

Health and Safety Precautions
Introduction
Many of the procedures associated with vehicle
maintenance and repair involve physical hazards
or other risks to health. This subsection lists,
alphabetically, some of these hazardous operations
and the materials and equipment associated with
them. Precautions necessary to avoid these
hazards are identified.
The list is not exhaustive and all operations and
procedures, and the handling of materials, should
be carried out with health and safety in mind.
Before using any product the Materials Safety Data
Sheet supplied by the manufacturer or supplier
should be consulted.
Acids and Alkalis
See alsoBattery Acids.
For example caustic soda, sulphuric acid.
Used in batteries and cleaning materials.
Irritant and corrosive to the skin, eyes, nose and
throat. Cause burns. Can destroy ordinary
protective clothing.
Avoid splashes to the skin, eyes and clothing. Wear
suitable protective impervious apron, gloves and
goggles. Do not breath mists.
Make sure access to eye wash bottles, shower and
soap are readily available for splashing accidents.
Display Eye Hazard sign.
Air Bags
See also Fire, Chemical Materials.
Highly flammable, explosive – observe No Smoking
policy.
Used as a safety restraint system mounted in the
steering wheel and passenger side of the
instrument panel.
The inflator contains a high-energetic propellant
which, when ignited, produces a VERY HOT GAS
(2500°C).
The gas generant used in air bags is Sodium Azide.
This material is hermetically sealed in the module
and is completely consumed during deployment.
No attempt should be made to open an air bag inflator as this will lead to the risk of exposure to
Sodium Azide. If a gas generator is ruptured, full
protective clothing should be worn when dealing
with the spillage.
After normal deployment, gloves and safety
goggles must be worn during the handling process.
Deployed air bags should be disposed of in a
plastic bag in accordance with local regulations at
an approved chemical waste site.
For additional information, refer to:
Supplemental
Restraint System (SRS) Health and Safety
Precautions (100-00 General Information,
Description and Operation).
Air Conditioning Refrigerant
See also Chlorofluorocarbon, Chemical Materials
Highly flammable, combustible – observe No
Smoking policy.
Skin contact may result in frostbite.
Instructions given by the manufacturer must be
followed. Avoid naked lights, wear suitable
protective gloves and goggles.
If refrigerant comes into contact with the skin or
eyes, immediately rinse the affected areas with
water. Eyes should also be rinsed with an
appropriate irrigation solution and should not be
rubbed. SEEK MEDICAL ASSISTANCE IF
NECESSARY.
For additional information, refer to: Air Conditioning
(A/C) System Health and Safety Precautions
(100-00 General Information, Description and
Operation).
Adhesives and Sealers
See also Fire, Chemical Materials.
Highly flammable, flammable, combustible –
observe No Smoking policy.
Generally should be stored in No Smoking areas.
Cleanliness and tidiness in use should be
observed, for example disposable paper covering
benches; should be dispensed from applicators
where possible; containers, including secondary
containers, should be labeled appropriately.
G566527en2008.50 Kuga8/2011
100-00- 42
General Information
100-00- 42
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

Solvent-based Adhesives/Sealers - See
Solvents
Follow manufacturers instructions.
Water-based Adhesives/Sealers
Those based on polymer emulsions and rubber
latexes may contain small amounts of volatile toxic
and harmful chemicals. Skin and eye contact
should be avoided and adequate ventilation
provided during use.
Hot Melt Adhesives
In the solid state, they are safe. In the molten state
they may cause burns and health hazards may
arise from the inhalation of toxic fumes.
Use appropriate protective clothing and a
thermostatically controlled heater with a thermal
cut-out and adequate extraction.
Resin-based Adhesives/Sealers, for
example Epoxide and Formaldehyde
Resin-based
Mixing should be carried out in well ventilated
areas, as harmful or toxic volatile chemicals may
be released.
Skin contact with uncured resins and hardeners
can result in irritation, dermatitis, and absorption
of toxic or harmful chemicals through the skin.
Splashes can damage the eyes.
Provide adequate ventilation and avoid skin and
eye contact.
Anaerobic, Cyanoacrylate (super-glues)
and other Acrylic Adhesives
Many are irritant, sensitizing or harmful to the skin
and respiratory tract. Some are eye irritants.
Skin and eye contact should be avoided and the
manufacturers instructions followed.
Cyanoacrylate adhesives (super-glues) MUST NOT
contact the skin or eyes. If skin or eye tissue is
bonded, cover with a clean moist pad and SEEK
IMMEDIATE MEDICAL ATTENTION. Do not
attempt to pull tissue apart. Use in well ventilated
areas as vapors can cause irritation to the nose
and eyes.For two-pack systems see Resin-based and
Isocyanate Adhesives/Sealers.
Isocyanate (Polyurethane)
Adhesives/Sealers
See also
Resin-based Adhesives.
Individuals suffering from asthma or respiratory
allergies should not work with or near these
materials as sensitivity reactions can occur.
Over exposure is irritating to the eyes and
respiratory system. Excessive concentrations may
produce effects on the nervous system including
drowsiness. In extreme cases, loss of
consciousness may result. Long term exposure to
vapor concentrations may result in adverse health
effects.
Prolonged contact with the skin may have a
defatting effect which may lead to skin irritation
and in some cases, dermatitis.
Splashes entering the eye will cause discomfort
and possible damage.
Any spraying should preferably be carried out in
exhaust ventilated booths, removing vapors and
spray droplets from the breathing zone.
Wear appropriate gloves, eye and respiratory
protection.
Antifreeze
See also Fire, Solvents.
For example isopropanol, ethylene glycol,
methanol.
Highly flammable, flammable, combustible.
Used in vehicle coolant systems, brake air pressure
systems, screenwash solutions.
For additional information, refer to: Engine Cooling
System Health and Safety Precautions (100-00
General Information, Description and Operation).
Asbestos
See also Warning Symbols on Vehicles at the end
of this subsection.
Breathing asbestos dust may cause lung damage
or, in some cases, cancer.
Used in brake and clutch linings, transmission
brake bands and gaskets.
G566527en2008.50 Kuga8/2011
100-00- 43
General Information
100-00- 43
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

dermatitis or be absorbed through the skin in
toxic or harmful quantities.
– Do not use emptied containers for other materials except when they have been cleaned
under supervised conditions.
– Do not sniff or smell chemical materials. Brief exposure to high concentrations of fumes can
be toxic or harmful.
Chlorofluorocarbons (CFC)
There is concern in the scientific community that
CFCs and Halons are depleting the upper ozone
layer which filters out harmful ultraviolet radiation.
Decreased filtration of ultraviolet radiation may
result in increases in skin cancer, cataracts and
immune system suppression in humans, as well
as decreased productivity of crops and aquatic
systems.
CFCs are used primarily as refrigerants in vehicle
air conditioning systems and as aerosol
propellants. Halons are used as fire extinguishants.
Clutch Fluids
See Brake fluids.
Clutch Linings and Pads
SeeAsbestos.
Corrosion Protection Materials
See also Solvents, Fire.
Highly flammable, flammable – observe No
Smoking policy.
These materials are varied and the manufacturers
instructions must be followed. They may contain
solvents, resins or petroleum products. Skin and
eye contact should be avoided. They should only
be sprayed in conditions of adequate ventilation
and not in confined spaces.
Cutting
See Welding.
Dewaxing
SeeSolvents andFuels (Kerosene).
Dusts
Powder, dusts or clouds may be irritant, harmful
or toxic. Avoid breathing dusts from powdery
chemical materials or those arising from dry
abrasion operations. Wear respiratory protection
if ventilation is inadequate.
Fine dusts of combustible material can present an
explosion hazard. Avoid explosive limits and
sources of ignition.
Electric Shock
Electric shock can result from the use of faulty
electrical equipment or from the misuse of
equipment in good condition.
Make sure that electrical equipment is maintained
in good condition and frequently tested. Faulty
equipment should be labeled and preferably
removed from the workstation.
Make sure that flexes, cables, plugs and sockets
are not frayed, kinked, cut, cracked or otherwise
damaged.
Make sure that electrical equipment and flexes do
not come into contact with water.
Make sure that electrical equipment is protected
by the correct rated fuse.
Never misuse electrical equipment and never use
equipment that is in any way faulty. The results
could be fatal.
Make sure that the cables of mobile electrical
equipment cannot get trapped and damaged, such
as in a vehicle hoist.
Make sure that the designated electrical workers
are trained in basic First Aid.
In cases of electrocution:
– switch off the power supply before approaching
the victim.
– if this is not possible push or drag the victim from the source of electricity using dry
non-conductive material.
– commence resuscitation if trained to do so.
– SUMMON MEDICAL ASSISTANCE.
Engine Oils
See Lubricants and Grease.
G566527en2008.50 Kuga8/2011
100-00- 45
General Information
100-00- 45
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

– that the speedometer, coolant temperaturegauge and tachometer (if equipped) register the
correct readings and operate correctly.
– that the switches and controls operate smoothly and positively, warning and indicator lamps
operate correctly and the direction indicator
control self cancels when the steering is
returned to the straight ahead position.
– that the heating and ventilation systems operate correctly and effectively.
– the brake operation and efficiency.
Brake Testing
WARNING: When brake testing, avoid
breathing the fumes from hot brakes, this
may contain asbestos dust which is
hazardous to health. Failure to follow this
instruction may result in personal injury.
For additional information, refer to: Health
and Safety Precautions (100-00 General
Information, Description and Operation).
CAUTIONS:
Avoid brake testing on busy roads where
it may cause inconvenience or danger to
other road users.
Brake testing which includes heavy brake
applications should not be carried out with
new brake pads/discs or linings/drums
until the components have bedded-in. New
brake friction components will not reach
full efficiency until the bedding-in process
is complete.
Test the brakes at several speeds within the normal
operating range using both light and heavy pedal
pressure. Note any tendency to snatch, pull or
drag, and any undue delay in application or
release.
Allow the vehicle to coast and note any tendency
to pull to one side, or evidence that the brakes are
binding.
After stopping the vehicle (not immediately after a
period of heavy braking), carefully check the brake
temperature. A brake disc or brake drum that feels
hot or is appreciably hotter than the others,
indicates that the brake is binding.
After completion of the test, check for: – oil, coolant, hydraulic, air and fuel leaks.
– abnormal temperature of any moving
components or assemblies, for example wheel
hubs, transmission and axle, which might
indicate over tightness or lack of lubrication.
G17375en2008.50 Kuga8/2011
100-00- 59
General Information
100-00- 59
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

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