2011 FORD KUGA fan

Climate Control System
Refer to Wiring Diagrams Section 412-00, for
schematic and connector information.
Special Tool(s) / General EquipmentTerminal Probe Kit
418-S035
29011A
Digital Multimeter (compatible with K-type
thermocouple)
The Ford approved diagnostic tool
Refrigerant center
Thermometer - Fluke 80 PK-8 (FSE number 260
4102 001 07)
Inspection and Checking
NOTE:The electronic automatic temperature
control (EATC) module is integrated into the air
conditioning control assembly.
1. VERIFY customer concern.
2. Visually CHECK for any obvious mechanical or electrical damage.
NOTE: Ensure correct locking of the wiring harness
connector.
Visual Inspection
Electrical
Mechanical
• Fuses
• Wiring harness
• Connector
• Refrigerant lines
• Condenser core
• Coolant level
• Drive belt
• A/C compressor
3. RECTIFY any obvious causes for a concern found during the visual inspection before
performing any further tests. CHECK the
operation of the system.
4. If the concern is still present after the visual inspection, perform fault diagnosis on the
electronic engine management, the charging
system, the generic electronic module (GEM)
and the instrument cluster (vehicles with EATC:
read out the EATC fault memory as well) using the Ford approved diagnostic tool and RECTIFY
the fault(s) displayed in accordance with the
fault description. CHECK the operation of the
system.
5. For vehicles with no stored fault(s), PROCEED in accordance with the Symptom Chart
according to the fault symptom.
6. Following checking or elimination of the fault(s) and after completion of operations, the fault
memories of all vehicle modules must be READ
OUT and any stored faults must be DELETED.
Refrigerant Circuit - Quick Check
WARNING: The air conditioning system is
filled with refrigerant R134a. Observe
"Health and Safety Precautions". For
further information
REFER to: Air Conditioning (A/C) System
Recovery, Evacuation and Charging
(412-00 Climate Control System - General
Information, General Procedures).
Refrigerant circuit check
WARNING: Under certain circumstances,
refrigerant lines and A/C components may
be extremely hot or cold. Exercising care,
touch the refrigerant lines or A/C
components in order to check this. Failure
to follow these instructions may result in
personal injury.
When the A/C system is operating, the following
conditions should apply:
• The refrigerant line from the refrigerant compressor to the condenser must be hot.
• The refrigerant line from the A/C condenser to the fixed orifice tube must be warm, but not so
hot as the refrigerant line mentioned above.
• Determine the difference in temperature upstream and downstream of the A/C condenser
by measuring the temperatures at the refrigerant
lines. The temperature difference should be
more than 20° C, depending on the ambient
temperature. If the temperature difference is
less, check the condenser for contamination or
damage to the fins as well as operation of the
radiator fans.
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Climate Control System - General Information
412-00- 3
DIAGNOSIS AND TESTING
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Climate Control – Overview
Pollen filter
E97258
The pollen filter must be changed at intervals in
accordance with the service schedule. A special
production pollen filter is installed in the factory,
and this must be cut through when the filter is
changed. The service pollen filter is flexible and
can be pushed together during installation or
removal.
Heat exchanger
E97249
The heat exchanger is accessible from the
right-hand side of the climate control housing (LHD
and RHD). It can be removed and installed with
the climate control housing still installed in the
vehicle. During removal, the coolant pipes of the
production heater core must be sawn through.
During servicing, a heater core with separate
coolant pipes is installed.
Evaporator assembly
E97250
The evaporator is located on the right-hand side
of the climate control housing (LHD and RHD). It
can only be removed and installed with the climate
control housing still installed in the vehicle, and the
heat exchanger must be removed at the same time.
Blower motor
CAUTION: Make sure that the blower motor
and fan assembly is placed on the bench
with the fan pointing upwards.
412-131
E101398
To prevent damage to the fan wheel vanes, the
fan wheel must not be touched. For this reason, a
special tool (412-131) has been introduced for
removal and installation of the blower motor. This
tool is pushed onto the central shaft in order to lift
out the blower motor.
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412-01-10
Climate Control
412-01- 10
DESCRIPTION AND OPERATION
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1
2
3
5
4
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8
9
10
11
E100819
Description
Item
Condenser
1
Air conditioning compressor
2
Suction accumulator
3
Evaporator assembly
4
Blower motor
5Description
Item
Evaporator Core Orifice Tube
6
Cooling fans.
7
High - pressure (liquid and warm)
8
Low - pressure (liquid and cool)
9
Low pressure (gaseous and cold)
10
High pressure (gaseous and hot)
11
The engine driven refrigerant compressor (2) sucks
in gaseous refrigerant from the suction accumulator
and compresses it. The temperature of the
refrigerant rises to a value between 70 °C and 110
°C. It passes to the condenser (1) under high
pressure.
At this point heat is drawn from the refrigerant by
the air being forced past the cooling fins. Because
of this heat loss, the refrigerant liquefies and leaves
the condenser.
A fixed orifice tube (6), which separates the
refrigerant at high pressure from that at low
pressure, is located between the condenser and
the evaporator (5). This fixed orifice tube slows
down the flow of the refrigerant from the compressor, so that pressure builds up in the
condenser.
After passing through the fixed orifice tube the
liquid refrigerant expands in the circuit to the
evaporator, where it becomes gaseous. This
causes heat to be extracted from the air coming
into the vehicle. The air cools down, and excess
moisture contained in it is condensed and is
drained off. The refrigerant coming from the
evaporator flows into the refrigerant accumulator
and is again sucked in by the refrigerant
compressor.
The system is protected by a high-pressure limiting
switch, in order to prevent damage by excessive
pressure (e.g. because of overfilling with
refrigerant). If the pressure exceeds the maximum
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412-01-
23
Climate Control
412-01- 23
DESCRIPTION AND OPERATION
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