2011 FORD KUGA transaxle

E126062
2
1
3
4
Description
Item
Fluid reservoir
1
Connection for return line from fluid cooler
2Description
Item
Connection for return line on transaxle
3
Hose
4
Under normal conditions, the transmission fluid is
filled for the service life of the transaxle and does
not need to be changed.
Under high loads (driving with a trailer or in
mountains etc.) it may be necessary to change the
transmission fluid.
To drain the transmission fluid, remove the fluid
drain plug.
Proceed as follows when topping off the
transmission fluid:
• Remove the return line from the fluid cooler to the transaxle on the transaxle. Close off the
connection on the transaxle using a plastic plug.
• Join the return line to a transparent pipe. The transparent pipe ends in the fluid reservoir in
order to collect the fluid.
• To top off the transmission fluid, insert a transparent pipe in the guide tube of the dipstick
and add approx. 2.0 liters of transmission fluid. • Move the selector lever to the 'P' position and
allow the engine to run at idle speed.
• Switch off the engine if air bubbles become visible in the transparent pipe to the fluid
reservoir.
• Top off approx. 2 liters of transmission fluid and allow the engine to run at idle speed. Switch off
the engine if air bubbles become visible in the
transparent pipe to the fluid reservoir.
• Top up the transmission fluid until the fluid level for cold fluid is indicated on the dipstick in the
middle between 'MIN' and 'MAX'.
• Then check the transmission fluid level.
Refer to the service literature for the exact
procedure and specifications.
NOTE: If the transmission fluid has been changed,
the counter for fluid change intervals must be reset
using IDS.
Diagnosis with IDS
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Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 18
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E77584
NOTE:Due to static charging, measurements
inside the transaxle using a multimeter are
prohibited.
Stored DTCs in the engine management system
may affect transmission control. As a result, faults
in the transmission control system and engine
management system must be rectified in
accordance with the symptom-based diagnosis in
FordEtis IDS.
Applications of IDS Standard include:
• Resetting the counter for fluid change intervals.
• Programming the selector lever position 'N'.
• Resetting the values learned by the TCM.
Resetting the counter for fluid change
intervals.
This function must be performed if the transmission
fluid has been changed or a new automatic
transaxle has been installed with the previous TCM.
This function resets the values stored for the
pollution level of the transmission fluid.
Programming the 'N' position of the TR
sensor
This function must be executed if
• the TCM with integrated TR sensor is renewed,
• a new automatic transaxle is installed with the previous TCM.
• the selector lever cable or the selector mechanism assembly is renewed
• TR have been set due to a fault in the selector lever assembly or in the DTC (diagnostic trouble
code) sensor.
The TCM learns and stores the voltage value in
the 'N' position when this function is executed.
Resetting the values learned by the TCM
This function must be executed if
• a new automatic transaxle is installed with the previous TCM.
• a component of the automatic transaxle has been renewed.
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Automatic Transmission/Transaxle
— Vehicles With:
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The learned values are reset. Resetting the learned
values can briefly impair shifting quality until the
TCM has learned and stored the new values.
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Automatic Transmission/Transaxle
— Vehicles With:
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Transmission Description – System Operation and ComponentDescription
System Operation
E112576
The AW55 5-gear automatic transaxle is a fully
automatic, electronically controlled automatic
transaxle. The fifth gear is an overdrive which
saves fuel.
The maximum input torque is 330 Nm.
Gear changes are controlled by an
electro-hydraulic system.
The gear ratios are achieved by means of a
combined planetary gear set and a Simpson set.
Three multi-plate clutches, four multi-plate brakes
and one band brake as well as two one-way
clutches control the various ratios.
The clutches and brakes are hydraulically operated
by electrically actuated solenoid valves. The valves
are actuated by the TCM depending on the driving
conditions and the driver's requirements.
The TCC is activated in gears 3, 4 and 5. The TCC
is driven in interlock mode and in slip mode. Defined slip achieves a smooth and therefore
comfortable clutch engagement of the TCC.
Control of slip mode depends on the engine speed,
accelerator pedal position and vehicle speed
signals provided by the ECM (engine control
module). This controls the rate of slip by comparing
the engine speed and the turbine shaft speed.
The TSS sensor and the OSS sensor use the Hall
effect principle. The TCM can regulate the slip in
the torque converter by comparing the engine
speed with the transmission speed.
All parameters for actuating the clutches and the
TCC are determined by the TCM as a function of
the operating parameters. The automatic transaxle
features a self-learning strategy.
The fundamental parameters for gear shifting are
the accelerator pedal position and the vehicle
speed.
Gear selection can either be performed
automatically or in select-shift mode. The selected
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Automatic Transmission/Transaxle
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5-Speed Automatic Transaxle - AW55 AWD
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transmission range or gear (in select-shift mode)
is indicated to the driver in the instrument panel.
In selector lever position "S", the driver can
manually select the gears (select-shift mode). Up
(+) and down (-) shifts are made by moving the
selector lever in the appropriate direction.
Hydraulic limp home modes maintain limited
operation in the event of failure of important
electrical components.Under normal conditions, the transmission fluid is
filled for the service life of the transaxle and does
not need to be changed.
A dipstick is used to check the fluid level in the
transmission.
Functionality overview
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E125524
Description
Item
Electronic Control System
A
Hydraulic Control System
BDescription
Item
Select-shift switch module
1
CAN (controller area network) bus input
signals
2
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Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
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Description
Item
The TR sensor
3
The TSS sensor
4
The TFT sensor
5
TCM6Description
Item
OSS (output shaft speed) sensor
7
Solenoid valves in valve body
8
Clutches and brakes
9
TCC
10
The function is divided into an electronic and a
hydraulic control system.
Electronic Control System
Depending on the input signals, the TCM mounted
on the transmission actuates the solenoid valves
in the valve body. The TCM calculates and stores
adaptive data, fault codes and values for diagnosis.
The TR sensor is integrated in the TCM.
Hydraulic Control System
When the engine is running, a fluid pump integrated
in the transaxle housing generates the hydraulic pressure required for controlling the automatic
transaxle.
Through actuation of the solenoid valves, hydraulic
pressure is applied to the clutches and brakes via
hydraulic channels in the valve body and the
transaxle. The control valves regulate the hydraulic
pressure in accordance with the duty cycle of the
electrical PWM signal. The controlled hydraulic
pressure enables smooth shifting or the generation
of a defined slip through actuation of the relevant
clutches and brakes.
Solenoid valves are either in the 'open' or 'closed'
state.Type plate
E125523
The transaxle identification is located on the
rear/top of the transaxle housing in the direction of
travel.
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Automatic Transmission/Transaxle
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Serial number of the transmission
Example:09HV70001
• 09: year of manufacture, 2009 •
H: code letter for the month of manufacture,
August
• V7: automatic transaxle type 55-51SN
• 00001 : Production number for the specified
month
Identification letter coding
January
A
February
B
March
C
April
D
May
E
June
F
July
G
August
H.
September
J
October
K
November
left-hand
December
Ground
Markings on the TCM
E125774
The name plate is located on the TCM.
Serial number of the TCM
Example: 082200001
• 08: year of manufacture, 2008
• 22: code for the calendar week
• 00001 : Production number for the specified
calendar week
Transmission Control
Depending on the input signals, the TCM mounted
on the transmission actuates the solenoid valves
in the valve body. The TCM calculates and stores
adaptive data, fault codes and values for diagnosis.
The TR sensor is integrated in the TCM.
G1163605en2008.50 Kuga8/2011
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Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 25
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FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL