select-shift switch module transmits a downshift
signal to the TCM.
If you move the gear selector lever backwards (+),
an upshift signal is transmitted to the TCM. In the
instrument cluster, the symbol when the selector
lever is in the 'S' position changes from 'D' to the
current gear, for example 3.
The TCM transmits a signal to the select-shift
switch module to switch on the light emitting diode
for 'S' and to switch off all other light emitting
diodes. The TCM decides whether the shift process
is possible.
If the shift process is permitted, then the various
valves are activated according to the intended
combination for each gear.
In certain situations however, the TCM determines
the gear shifting. The following applies:
• If the vehicle is stationary, only 1st, 2nd and 3rdgears can be selected. 4th gear can be selected
at speeds over 30 km/h and 5th gear at speeds
over 40 km/h.
• The kickdown function is only available in the automatic transmission range 'D'
• Automatic gear changes into the next higher or next lower gear occur at fixed vehicle speeds
and fixed engine speeds
• The permitted engine speed for manual change down agree with that for the kickdown change
up, i.e. an engine speed of approximately 6000
rpm.
• If the temperature inside the transmission rises too high, the TCM takes control of the shift
decisions in order to select a gear in which
activation of torque converter lockup at the
current speed is possible
• Torque converter lockup is possible in 3rd, 4th and 5th gear. (1st and 2nd gears do not have
torque converter lockup)
The signal that specifies the position of the lever
to the select-shift switch module is generated as
follows in the selector lever position 'S': there is a
Hall sensor at the printed circuit board for the
module for each of the three selector lever
positions. A permanent magnet on the cover in the
selector lever affects the output signals to the
control module from the sensors. The control
module recognizes the position of the lever by the
differences in the signal properties.Selector lever from 'N' to 'R' position
The TCM only permits shifting to reverse gear if
the vehicle speed is less than 4.35 mph.
If the vehicle speed is greater than 7 km/h (approx.
4.35 mph), the clutch (C2) and the multi-plate brake
(B3) are not activated and the gearshift is thus
prevented.
Self-test and Diagnosis
The TCM monitors all the transaxle sensors and
electronic components including the PCM. If a fault
occurs, the driver is informed via a warning
indicator and a text message in the instrument
cluster. Faults are stored as DTCs in the fault
memory of the TCM and can be read out and
cleared using the IDS.
Temperature controlled torque converter
lockup
If heavy load and high ambient temperatures cause
an abnormal rise in the transmission temperature,
torque converter lockup is activated as often as
possible (temperature controlled lockup).
This reduces the slip and the heat developed in
the transmission. When the temperature drops
below +20 °C, torque converter lockup is not used.
Slip locking
When changing gear this function makes it possible
for the gears to engage more smoothly with
reduced vibration and less noise. In this mode, the
torque converter clutch is activated but not fully
locked.
The following conditions must be met for the
function to activate:
• Gear selector lever in position D or S.
• Gear 3, 4 or 5.
• The transmission input speed is 1100 rpm or more and the throttle plate opening 20 - 35%.
• The transmission fluid temperature is 40 - 120 °C.
Hill climbing
The TCM can change the shift pattern slightly when
driving uphill to avoid changing gear too often.
G1163605en2008.50 Kuga8/2011
307-01- 30
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 30
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL
E125575
1
2
Description
Item
Parking lock
1
1st and 2nd gear and reverse gear brake
(B5)
2
The transmission input shaft rotates in the
clockwise direction. All clutches and brakes on the
input side are deactivated and no power is
transmitted to the planetary gear sets.
No force is transferred to the output shaft. The
brake B5 (2) locks the rear planetary gear carrier
on the output side. The parking lock (1) is not
activated. Since the transaxle input shaft is not
positively connected with the input side, the vehicle
will start to roll away if it is on an incline. The brake B5 is activated both in 'P' and in 'N'
position to reduce the cut-in pressure that
otherwise occurs if several brakes and clutches
are activated simultaneously when the selector
lever is moved to 'D' or 'R' position. Since the brake
B5 is activated both in first and second as well as
in reverse gear, this method reduces the total
number of transient effects.
Position D, 1st gear
G1163605en2008.50 Kuga8/2011
307-01-
35
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 35
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL
E127358
21
3
Input shaft:
The transmission input shaft rotates in the
clockwise direction. Clutch C1 (1) joins the
transaxle input shaft with the ring gear, which
rotates in clockwise direction. The rear planetary
gear set rotates in the clockwise direction. The
front larger planetary gear set rotates clockwise
with the rear planetary gear set as a single unit.
The front smaller planetary gear set rotates in the
clockwise direction. The front annular gear rotates
counterclockwise. One-way clutch F2 (2) blocks
the front annular gear clockwise rotation.
The front and rear planetary gear carriers are
turned clockwise because of the reactive forces
from the small gear. The primary idler gear rotates
clockwise with the front and rear planetary gear
carriers as one unit.
Output shaft:
The secondary idler gear rotates counterclockwise.
The front annular gear rotates counterclockwise
with the secondary idler gear as a single unit.The front planetary gear set rotates in the clockwise
direction. The sun gear rotates clockwise.
The rear planetary gear set rotates
counterclockwise. Brake B5 (3) prevents rotation
of the rear planetary gear carrier. The rear annular
gear rotates counterclockwise. The front planetary
gear carrier and the final drive pinion rotate
counterclockwise with the rear annular gear as one
unit. The final drive rotates in the clockwise
direction.
Engine braking:
The 1st gear has no engine braking function
because the power flow is interrupted by the
one-way clutch F2 rotating against the locking
direction.
The brake B3 is additionally activated in select-shift
mode to guarantee engine braking.
Position D, 2nd gear
G1163605en2008.50 Kuga8/2011
307-01-
36
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 36
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL
E127359
1
2
3
4
5
Input shaft:
The transmission input shaft rotates in the
clockwise direction. The clutch C1 (1) joins the
transaxle input shaft and the ring gear. The ring
gear rotates in clockwise direction. The planetary
gear set rotates in clockwise direction.
The front larger planet gear rotates clockwise with
the rear planet gear as a single unit. Brakes B2
(2), brake B1 (3) and the one-way clutch F1 (4)
prevent rotation of the sun gear.
The front and rear planetary gear carriers are
turned clockwise by the front larger gear. The
primary idler gear rotates clockwise with the front
and rear planetary gear carriers as one unit.
Output shaft:
The secondary idler gear rotates counterclockwise.
The front annular gear rotates counterclockwisewith the secondary idler gear as a single unit. The
front planetary gear set rotates in the clockwise
direction.
The sun gear rotates clockwise. The rear planetary
gear set rotates counterclockwise. Brake B5 (5)
prevents rotation of the rear planetary gear carrier.
The rear annular gear rotates counterclockwise.
The front planetary gear carrier and the shaft drive
pinion rotate in counterclockwise direction with the
rear ring gear as one unit. The final drive rotates
in the clockwise direction.
Engine braking:
The power is transferred directly to the
transmission input shaft without one-way clutch
involvement. Engine braking is thus applied.
Position D, 3rd gear
G1163605en2008.50 Kuga8/2011
307-01-
37
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 37
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL
E127360
1
2
3
4
5
Input shaft:
The transmission input shaft rotates in the
clockwise direction. The clutch C1 (5) joins the
transaxle input shaft and the ring gear. The ring
gear rotates in clockwise direction. The rear
planetary gear set rotates in the clockwise
direction.
The front larger planet gear rotates clockwise with
the rear planet gear as a single unit. Brakes B2 (1)
and B1 (2) and also the one-way clutch F1 (3)
prevent rotation of the sun gear.
The front and rear planetary gear carriers are
turned clockwise because of the reactive forces
from the front larger gear. The primary idler gear
rotates clockwise with the front and rear planetary
gear carriers as one unit.
Output shaft:The secondary idler gear rotates counterclockwise.
The front annular gear rotates counterclockwise
with the secondary idler gear as a single unit. The
front planetary gear set rotates in counterclockwise
direction. The brake band B4 (4) locks the
rotational movement of the sun gear.
The front planetary gear carrier rotates in
counterclockwise direction. The front planetary
gear carrier and the shaft drive pinion rotate in
counterclockwise direction with the rear ring gear
as one unit. The final drive rotates in the clockwise
direction.
Engine braking:
The power is transferred directly to the
transmission input shaft without one-way clutch
involvement. Engine braking is thus applied.
Position D, 4th gear
G1163605en2008.50 Kuga8/2011
307-01-
38
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 38
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL
E127361
1
2
3
4
5
Input shaft:
The transmission input shaft rotates in the
clockwise direction. The clutch C1 (5) joins the
transaxle input shaft and the ring gear. The ring
gear rotates in clockwise direction. The rear
planetary gear set rotates in the clockwise
direction.
The front larger planet gear rotates clockwise with
the rear planet gear as a single unit. Brake B2 (1),
one-way clutch F1 (3) and brake B1 (2) prevent
rotation of the sun gear.
The front and rear planetary gear carriers are
turned clockwise because of the reactive forces
from the front larger gear. The primary idler gear
rotates clockwise with the front and rear planetary
gear carriers as one unit.
Output shaft:The secondary idler gear rotates clockwise. The
front annular gear rotates counterclockwise with
the secondary idler gear as a single unit. Clutch
C3 (4) connects the sun gear with the front
planetary gear carrier.
The front planetary gear set cannot rotate and the
output shaft rotates counterclockwise as a single
unit. The final drive rotates counterclockwise with
the output shaft as a single unit. The final drive
rotates in the clockwise direction.
Engine braking:
The power is transferred directly to the
transmission input shaft without one-way clutch
involvement. Engine braking is thus applied.
Position D, 5th gear
G1163605en2008.50 Kuga8/2011
307-01-
39
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 39
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL
E125594
12
4
3
Input shaft:
The transmission input shaft rotates in the
clockwise direction. The clutch C1 (2) joins the
transaxle input shaft and the ring gear. Clutch C2
(1) connects the transmission input shaft with the
sun gear.
The brake B2 (3) locks the rotational movement of
the sun gear in a counterclockwise direction.
The rear planetary gear set cannot rotate and the
rear planet gear unit rotates clockwise as a single
unit. The front planetary gear set cannot rotate with
the rear planetary gear set as a single unit. The
front planetary gear unit rotates clockwise as one
unit. The primary idler gear rotates clockwise with
the front planetary gear unit as a single unit.
Output shaft:The secondary idler gear rotates counterclockwise.
The front annular gear rotates counterclockwise
with the secondary idler gear as a single unit.
Clutch C3 (4) connects the sun gear with the front
planetary gear carrier.
The front planetary gear set cannot rotate and the
output shaft rotates counterclockwise as a single
unit. The final drive rotates counterclockwise with
the output shaft as a single unit. The final drive
rotates in the clockwise direction.
Engine braking:
The power is transferred directly to the
transmission input shaft without one-way clutch
involvement. Engine braking is thus applied.
Position R (reverse)
G1163605en2008.50 Kuga8/2011
307-01-
40
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 40
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL
E127362
12
3
Input shaft:
The transmission input shaft rotates clockwise.
Clutch C2 (1) connects the transmission input shaft
with the sun gear. The sun gear rotates clockwise.
The rear planetary gear set rotates
counterclockwise. The front larger planetary gear
set rotates counterclockwise with the rear planetary
gear set as a single unit. The front smaller
planetary gear set rotates clockwise.
Brake B3 (2) blocks the ring gear in
counterclockwise direction. The front and rear
planetary gear carriers are turned clockwise by the
front smaller gear. The primary idler gear rotates
counterclockwise with the front and rear planetary
gear carriers as one unit.
Output shaft:
The secondary idler gear rotates clockwise. The
front annular gear rotates clockwise with the
secondary idler gear as a single unit. The front
planetary gear set rotates clockwise. The sun gear
rotates in counterclockwise direction.
Brake B5 (3) prevents rotation of the rear planetary
gear carrier. The rear annular gear rotates
clockwise. The front planetary gear carrier and the
final drive pinion rotate clockwise with the rearannular gear as one unit. The final drive rotates
counterclockwise.
Engine braking:
The power is transferred directly to the
transmission input shaft without one-way clutch
involvement. Engine braking is thus applied.
NOTE:
The clutch C2 and the brake B3 are only
activated at a speed below 7 km/h (approx. 4.35
mph) when shifting from a forward gear to the
reverse gear.
Service instructions
Towing procedure
Towing is only permitted travelling forwards, at a
maximum speed of 80 km/h and for up 80 km. The
gear selector lever must be in Neutral.
CAUTION: The vehicle must never be
towed backwards under any
circumstances.
G1163605en2008.50 Kuga8/2011
307-01- 41
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 41
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL