Page 1864 of 2057
E127303
59
13
2
6
10
14
3
7
11
15
4
8
12
16
17
19202118
1
Description
Item
TCM1
GEM
2Description
Item
Instrument Cluster
3
PCM
4
G1163605en2008.50 Kuga8/2011
307-01- 43
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 43
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Output signals
Hard wired
• Item 8: PCM– Start inhibitor. Supplies the PCM with a signalthat indicates whether the engine can be
started or not.
• Item 9: Selector lever module (select-shift module)
– Controls the solenoid switch in the selectorlever unit.
• Position 10: PWM solenoid valve – shift pressure (SLS)
– Matches the line pressure to a shift pressureand is activated for certain gears.
• Position 11: PWM solenoid valve – main line pressure (SLT)
– Adjusts the linear line pressure for gearchanges without jolts.
• Position 12: PWM- solenoid valve – TCC (SLU) – Matches the line pressure to a torqueconverter lock-up pressure. Is also used for
certain gearshifts.
• Items 13 - 17: Shift solenoids S1 – S5 – The TCM checks which gear is engaged asthe solenoids become active in different
patterns.
Via the LIN data bus
• Item 7: Selector lever module (select-shift module)
– The TCM transmits a signal to the selectorlever module which activates the LED (light
emitting diode) in the selector mechanism
assembly according to the selector lever
position. Via the CAN data bus
• Item 2: GEM
– The selector lever module transmits a signalvia the TCM, which indicates that the selector
lever is locked in position P. The GEM uses
this information to control the ignition switch
key inhibit function.
– The TCM transmits a signal via the GEM to activate the back-up lamps.
• Item 3: Instrument Cluster – Current selector lever position. Used toindicate the selector lever position in the
instrument cluster.
– Check the warning lamps via the GEM. In the event of a fault, the general warning lamp
lights.
– Text messages in the instrument cluster via the GEM. The driver receives various
malfunction messages from the TCM.
– The TCM transmits signals on the CAN data bus to the PCM so that the MIL lights up in
the event of emissions-related faults.
• Item 4: PCM – Transmission fluid temperature, used tocompensate for increased loads at low fluid
temperatures.
– Gear selected, used by the engine so that it can compensate for different loads.
– Torque converter lockup, used by the engine so that it can compensate for different loads.
– Next gear planned by the TCM, used by the engine to compensate for different loads.
– Requirement for a reduced engine torque during gear shifts, the engine reduces the
engine torque during gear shifts.
– Torque limiting requirement, the engine limits the engine torque according to the gear
engaged.
• Item 5: ABS module – Current gear, used to transmit a signal, notfor shift control.
– Vehicle speed, used as reserve.
Control valve assembly
G1163605en2008.50 Kuga8/2011
307-01- 45
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
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well as vehicle speed, driving comfort is improved
by linear actuation of the TCC.
Selector lever with integrated select-shift
switch module
E112332
The selector lever unit is located in the central
console. It is mechanically connected to the
transmission by a selector cable which moves the
gear selector shaft in the TR sensor.
The following components are integrated in the
selector lever assembly:
• Select-shift switch module
• Selector lever lock solenoid.
• Switch contact for selector lever position 'P'
• LED for the selector lever position display
The selector lever has the following positions:
• P: Park position
• R: Reverse gear.
• N: Neutral position
• D: Automatically shift between all gears
• S: Sport and select-shift mode (manual gearchanging)
If the selector lever is not in the 'P' position when
the vehicle is exited, a signal is transmitted to the
instrument cluster via the switch contact for selector
lever position 'P'. When the driver door is opened,
a message to move the selector lever to the 'P'
position appears in the instrument cluster and the
warning buzzer sounds. The vehicle cannot be
electrically locked if the selector lever is not moved
to the 'P' position.
G1163605en2008.50 Kuga8/2011
307-01- 53
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 53
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Consequences of signal failure
E125799
34
2
1
Description
Item
The TSS sensor
1
TCM connector 'B'
2
• Emergency mode 1
• Torque limitation is activated in order to protect the transaxle components from damage.
• The engine speed serves as a substitute value.
• When the engine is restarted (ignition switched off for approx. 15 seconds), the transaxle is no
longer in limp home mode. There is no longer
a fault indication on the instrument cluster, and
the MIL is off. However, the fault remains stored
in the TCM. If the fault is still present, limp home
mode is reactivated.
The OSS sensor
E112329
The OSS sensor is located at the rear of the
transmission casing. It supplies signals about the
transaxle output speed to the TCM.
Function
E89083
3
2
1
Description
Item
Signal voltage
1
Signal frequency
2
Transmission input shaft speed
3
The OSS sensor is a Hall sensor. The OSS sensor
generates a square-wave signal, the frequency of
which varies depending upon the speed of the
G1163605en2008.50 Kuga8/2011
307-01- 57
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Page 1879 of 2057

transaxle output shaft. The frequency of the
square-wave signal increases with the speed of
the transmission output shaft.
The OSS sensor picks up the speed at the gear of
the parking lock.
The TCM uses the information from the OSS
sensor for the following parameters:
• Calculation of the degree of torque reductionthat needs to be requested by the PCM during
shifting.
• Calculation of the shift points.
• Calculation of the engaging and disengaging point for the TCC (lock-up function).
• Calculation of the current gear ratios by comparison of the TSS sensor signal.
Consequences of signal failure
E125800
1 2
2
1
Description
Item
The OSS sensor
1
TCM connector 'B'
2 • The torque converter lockup and adaptation
functions are deactivated.
• The wheel speed signal is transmitted by the ABS to the TCM via the HS-CAN data bus. This
signal serves as a substitute value.
• When the engine is restarted (ignition switched off for approx. 15 seconds), the transaxle is no
longer in limp home mode. There is no longer
a fault indication on the instrument cluster, and
the MIL is off. However, the fault remains stored
in the TCM. If the fault is still present, limp home
mode is reactivated.
The TFT sensor
E125802
The TFT sensor is located in the valve body and
is an integral component of the internal transaxle
wiring harness.
Function
G1163605en2008.50 Kuga8/2011
307-01- 58
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
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E89089
10000100
50 0 150
1
2
Description
Item
Resistance (Ohms)
1
Temperature (°C)
2
The sensor is an NTC (negative temperature
coefficient) (negative temperature coefficient)
sensor. The voltage supply is 5 V. The transmission
fluid temperature is detected by measuring the
voltage drop across the NTC resistor.
The TCM uses the transmission fluid temperature
information for the following calculations:
• Transaxle shift points
• If the transmission fluid temperatures are too high, slip lock-up of the TCC is prevented.
Consequences of signal failure
88
E125803
1
2
Description
Item
The TFT sensor
1
TCM connector 'C'
2
• No activation of TCC slip lock-up mode.
• No activation of TCC full lock-up mode.
• The MIL is activated.
• When the engine is restarted (ignition switched off for approx. 15 seconds), the transaxle is no
longer in limp home mode. There is no longer
a fault indication on the instrument cluster, and
the MIL is off. However, the fault remains stored
in the TCM. If the fault is still present, limp home
mode is reactivated.
• If the sensor fails, a temperature substitute value of 30 °C (86 °F) is initially assumed. After 15
minutes driving, the substitute value is raised
t o 111 ° C .
G1163605en2008.50 Kuga8/2011
307-01- 59
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 59
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Page 1938 of 2057
7.
E114513
8.Lower the Vehicle.
9. Refer to: Floor Console Extension - Vehicles
With: Center Armrest (501-12 Instrument
Panel and Console, Removal and Installation).
10.
E114518
11 . Torque: 25Nm
x4x4
E100949
12.
E114519
13.Torque: 25Nm
x4x4
E114516
14.
x4x4
E101415
G1163686en2008.50 Kuga8/2011
REMOVAL AND INSTALLATION
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307-05-
8
Automatic Transmission/Transaxle External
Controls
— Vehicles With: 5-Speed Automatic Transaxle - AW55 AWD/6-Speed
Automatic Transaxle - 6DCT450
307-05-8
.
Page 1941 of 2057
Selector Lever Assembly — Vehicles With: 5-Speed AutomaticTransaxle - AW55 AWD
Removal
CAUTION: Gearshift cables must not be
kinked or bent.
NOTE: Removal steps in this procedure may
contain installation details.
1. Refer to: Floor Console Extension - Vehicles
With: Center Armrest (501-12 Instrument
Panel and Console, Removal and Installation).
2.
E114518
3.
E114519
4.
x4x4
E101415
5. Torque: 9Nm
50 mm
x4
50 mm
x4
E114520
G1163687en2008.50 Kuga8/2011
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307-05-
11
Automatic Transmission/Transaxle External
Controls
— Vehicles With: 5-Speed Automatic Transaxle - AW55 AWD/6-Speed
Automatic Transaxle - 6DCT450
307-05-11
.