ESP FORD KUGA 2011 1.G Repair Manual

voltage signal to the PCM corresponding to the
aspirated air mass.
This analogue voltage signal is between 0.5V and
5V. Low mass of intake air produces a low voltage
signal. A high mass of intake air produces a
correspondingly high voltage signal.
The MAF sensor is also capable of detecting the
backflow of the intake air. A sensor element is
heated electrically on the integrated chip and then
cooled by the air flowing through. The regulating
switch supplies the heating current in such a way
that it attains a constant excess temperature in
comparison to the intake air. The mass air flow and
the direction of flow can be derived from this
heating current (given in the form of a signal
voltage). Below a certain voltage value there is a
return flow. The direction is flow is registered by
two sensors pointing in different directions. The
measurement does not require a great deal of
software processing effort, even with a strongly
pulsating mass air flow.MAPT
E96146
The MAPT sensor combines two sensors in one
housing. These are the MAP sensor and the IAT
sensor. They take the form of a piezoelectric
resistor and an NTC resistor.
The MAP sensor receives a reference voltage of
5V from the PCM. The output signal from the MAP
sensor element is an analog voltage signal which
changes proportionately to the prevailing pressure
in the intake manifold.
The IAT sensor records the temperature of the
intake air downstream of the intercooler.
APP sensor
00
E96668
1
2
43
AV
56
7
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Electronic Engine Controls— 2.5L Duratec (147kW/200PS) - VI5303-14-
28
DESCRIPTION AND OPERATION
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injectors
E96472
2
3
4
5
6
7
8
1
2
Description
Item
Electrical connector
1
Seal
2
Fuel inlet with fine sieve
3
Housing
4
Coil
5
Spring
6
Valve needle with solenoid armature
7
Valve seat with nozzle hole disk
8
The fuel injectors consist of a housing with fuel
passages, a coil and an injector needle with a
solenoid armature. The fuel inlet in the injector
features a fine sieve. There are two holes in the
nozzle hole disk. These are arranged so that two
jets of fuel emerge. Each jet supplies one intake
valve of the respective cylinder.
Ignition coil-on-plug
E73516
2
1
3
4
5
6
7
8
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Electronic Engine Controls— 2.5L Duratec (147kW/200PS) - VI5303-14-
32
DESCRIPTION AND OPERATION
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• Selector lever position and selector leverposition display
• Fluid leakage
• Transmission fluid level check
• Transmission fluid quality check
• Modification/retrofitting
• Mechanical damage to the transmission
When inspecting connectors, remember that the
plugs may only be disconnected when they are not
energized.
The transaxle electronics may be destroyed by
static charge. To prevent damage, it must be
ensured that the technician complies with the
corresponding safeguards.
NOTE: Refer to the service literature for an exact
description of these safeguards.
Towing the vehicle
E66463
In general, vehicles with the AW55 transaxle can
be towed. Vehicles must never be towed
backwards.
As a result of the reduced lubrication of the
transaxle during towing, the following must be
remembered:
• The selector lever must be in the 'N' position.
• The maximum towing speed must not exceed 50 km/h.
• The maximum towing distance must not exceed 50 kilometers.
Push-starting the Vehicle
No torque is transmitted when towing or pushing
the vehicle. For this reason, vehicles with an
automatic transaxle cannot and must not be
tow-started or push-started.
Jump-starting the Vehicle
CAUTION: When jump-starting the vehicle
using a jumper lead there may be voltage
peaks. These may destroy the transaxle
electronics.
NOTE: When jump-starting the vehicle, the external
battery must remain connected for several minutes.
The voltage peaks dissipate after a few minutes.
Only then may the external battery be disconnected
without the risk of damage.
Selector Lever Emergency Release
E114512
1
2
3
4
If release of the selector lever lock by means of
the selector lever lock solenoid actuated by the
TCM fails in selector lever position 'P', it is possible
to perform an emergency release.
Procedure:
• Carefully slide a flat screwdriver into the slot (1).
• Turn the screwdriver (2).
• Press the screwdriver downwards to detach the gaiter frame from the trim panel (3).
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Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 15
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Transmission Fluid Level Check
E126079
WARNING: Beware, risk of scalding when
checking the transmission fluid.
NOTE: Refer to the service literature for the exact
procedure and specifications.
In order for the transaxle to function properly, it is
vital that the transmission fluid level is correct. If the transmission fluid level is excessively low, this
becomes noticeable by a rattling noise at the fluid
pump, etc.
Always use transmission fluid to the indicated
specification (WSS-M2C924-A).
The transmission fluid temperature is determined
using IDS.
It must be ensured that the transmission fluid
temperature is within the range specified in the
workshop literature.
The following conditions must be met in order to
carry out the transmission fluid level check
correctly:
• Ensure that the transaxle is not in limp home
mode.
• Place the vehicle on a level surface.
• Move the selector lever to the 'P' position.
• Make sure that the parking brake is fully applied.
• Run the engine at idle speed.
• Move the transmission selector lever to all positions. In doing so, wait until the transmission
engages the corresponding range.
• Move the selector lever back to the 'P' position.
• Pull out the fluid dipstick.
When the predetermined transmission fluid
temperature is reached, the fluid level shown on
the dipstick must be in the middle between 'MIN'
and 'MAX'. In this case, the fluid level is correct.
Changing the Transmission Fluid
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Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 17
DESCRIPTION AND OPERATION
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The TR sensor
E125819
The TR sensor and the TCM form one unit. This
unit is located at the top of the transmission casing,
on the gear linkage.
Function
The TR sensor has three separate functions:
• Transmit a signal to the TCM about the selectedtransmission range.
• To transmit the signal to switch on the reversing lamps to the GEM when the selector lever is in
the 'R' position.
• To transmit the start enable signal to the PCM when the selector lever is in the 'P' or 'N'
position.
The TR sensor contains a permanent magnet and
a linear Hall detector. It produces a signal voltage
between 0 and 5 V. This signal voltage
corresponds to the selector lever position currently
chosen.
Voltage values for the different gears:
• P approximately 0.65 V
• R approximately 1.64 V
• N approximately 2.12 V
• D approximately 2.49 V
Consequences of signal failure
If the TR sensor fails, the MIL is activated and the
vehicle can be driven in emergency mode 4. The
vehicle can no longer be started for safety reasons
after the ignition is switched off because the TCM
does not detect the current transmission range.
If a shift solenoid valve fails, the MIL is activated
and the vehicle can be driven in the appropriate
emergency mode.
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Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 60
DESCRIPTION AND OPERATION
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Selector Lever Cable Adjustment — Vehicles With: 5-SpeedAutomatic Transaxle - AW55 AWD
Adjustment
1.
E114413
2.
E114414
3.
E114415
4.
E114416
5.Start the engine and move the selector lever
through all the gear positions. Wait until each
gear engages when moving through the gear
positions.
6. Check that the selector lever position indicator
corresponds to the position of the selector lever,
repeat the adjustment procedure if necessary.
7.
E108427
G1163685en2008.50 Kuga8/2011
GENERAL PROCEDURES
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307-05-
6
Automatic Transmission/Transaxle External
Controls
— Vehicles With: 5-Speed Automatic Transaxle - AW55 AWD/6-Speed
Automatic Transaxle - 6DCT450
307-05-6
.

• The refrigerant line between the fixed orificetube and the evaporator must be cold from the
point where the fixed orifice tube is installed.
Depending on the weather, the refrigerant line
may also have ice on its surface.
• The refrigerant line between the evaporator and the A/C compressor including the dehydrator
must be cold.
Evaporator outlet line temperature test
To test the power of the A/C system, the
temperature at the evaporator outlet line must be
measured. To do this, the following preconditions
must be met:
• Open all windows.
• Set the air distribution to the defrost/dashboardposition and open all the ventilation nozzles.
• DO NOT switch on recirculated air.
• Select lowest blower switch setting.
• Select lowest temperature setting.
NOTE: The temperature measurement cannot be
done with a thermometer which makes no contact.
The surface reflection from the metal line may
cause incorrect readings.
Connect the temperature sensor (Fluke 80 PK-8)
to the outlet line of the evaporator. Locate the
temperature sensor as close as possible to the
evaporator. Connect the temperature sensor to the
multimeter.
Start the engine and allow it to run at idle speed
for several minutes.
Switch on the A/C.
After three minutes, measure the surface
temperature of the evaporator outlet line.
If the temperature measured is 4° C or lower, the
A/C system is OK. If the temperature is higher, the
A/C system may be under-filled. For further
information, refer to
REFER to: Air Conditioning (A/C) System
Recovery, Evacuation and Charging (412-00
Climate Control System - General Information,
General Procedures).
Frequent faults and their causes
If the cooling power of the A/C system is not
adequate, make certain that the temperature
control flap(s) is/are operating correctly. • No or poor cooling performance:
– Blockage or narrowing of a refrigerant line orin the dehydrator. The location of the
blockage or narrowing can easily be located
by temperature comparisons at the
refrigerant lines and the dehydrator. The
blockage or restriction is located at the point
where the temperature difference is
identified. Note: A temperature difference
in the area of the fixed orifice tube is
normal. If the location of the blockage or
narrowing is found, check the corresponding
component and renew as applicable.
• Sudden drop in cooling performance (after the air conditioning has been switched off for
approx. 5 minutes, the cooling performance
returns to normal):
– The cause is an iced-up fixed orifice tubebecause of moisture in the refrigerant circuit.
In order to ensure that moisture is completely
removed from the refrigerant circuit, the
dehydrator should be renewed and the
evacuation time should be extended to 2-3
hours. For further information
REFER to: Air Conditioning (A/C) System
Recovery, Evacuation and Charging
(412-00 Climate Control System - General
Information, General Procedures).
Sequence of A/C Request Signal
NOTE: The electronic automatic temperature
control (EATC) module is integrated into the air
conditioning control assembly.
NOTE: The generic electronic module (GEM) is
an integral part of the central junction box (CJB).
After actuating the A/C ON/OFF switch integrated
into the A/C control assembly, an A/C request
signal is sent from the A/C control assembly
(vehicles with EATC: EATC module) to the GEM.
From there, the signal is sent to the instrument
cluster via the MS-CAN bus. A gateway is installed
in the instrument cluster, which establishes the
connection between the MS-CAN bus and the
HS-CAN bus.
After the signal has been converted in the gateway,
it is relayed to the powertrain control module (PCM)
via the HS-CAN bus. Once all the required
parameters have been met, the PCM switches on
the refrigerant compressor and thus the A/C system
via the A/C clutch relay.
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412-00- 4
Climate Control System - General Information
412-00- 4
DIAGNOSIS AND TESTING
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