Page 999 of 1226

Automatic Transmission/Transaxle -
Vehicles With: 4-Speed Automatic
307-01 -39 Transmission (AW81-40) 307-01 -39
DESCRIPTION AND OPERATION
TFT sensor Overdrive switch
The TFT sensor is located in the oil pan on the
main control body and is part of the transmission
wiring harness.
It measures the current transmission fluid
temperature and sends the signal to the
transmission control unit.
The transmission control unit uses this signal for:
Cold start mode,
Engagement of the TCC,
Shift timing adaptation during upshifts,
' , Shift timing adaptation during shifts from 3rd to
4th gear,
Shift timing adaptation during shifts from 4th to
3rd gear,
Overheating protection mode.
Consequences of signal failure:
NoTCC,
no shift timing adaptation,
no 4th gear. The overdrive switch
is located on the selector
lever.
It allows the driver to suppress or enable gearshifts
into 4th gear when
"D" is selected.
The signal from the overdrive switch is transmitted
to the transmission control unit.
When gearshifts into 4th gear are suppressed, the
transmission control unit sends a corresponding
signal via the CAN
databus to the instrument
cluster. The instrument cluster then actuates the
overdrive indicator lamp.
Consequences of signal failure:
no suppression of gearshifts into 4th gear.
2006.0 Fiesta 1212006 G380530en
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Page 1023 of 1226
Automatic Transmission/Transaxle -
Vehicles With: 4-Speed Automatic
Transmission (AW81-40)
REMOVAL AND INSTALLATION
4. Loosen the strut and spring assembly top 7. Detach the ground cable from the transaxle.
mount nuts by three turns on both sides.
8. Disconnect the turbine shaft speed (TSS)
5. Detach the engine ground cable from the sensor
electrical connector.
transaxle.
9. Disconnect the transaxle breather hose.
6. Remove the transaxle upper retaining bolts.
Detach the engine wiring harness bracket
from the transaxle.
2006.0 Fiesta 1212006 G371506en
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Page 1024 of 1226
Automatic Transmission/Transaxle -
Vehicles With: 4-Speed Automatic
Transmission
(AW81-40)
REMOVAL AND INSTALLATION
10. Disconnect the transaxle wiring harness
14. Detach the selector lever cable from the
electrical connector. manual shift lever.
f
11. Disconnect the transmission range (TR)
15. Detach the selector lever cable retaining
sensor electrical connector.
bracket from the transaxle and position
it
to one side.
12. Disconnect the vehicle speed sensor
(VSS)
electrical connector.
16. Remove the transmission fluid level
indicator tube.
13. Remove the front wheels and tires.
For additional information, refer to: Wheel
and Tire (204-04 Wheels and Tires,
Removal and Installation).
2006.0 Fiesta 1212006 G371506en
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Page 1034 of 1226
Automatic Transmission/Transaxle -
Vehicles With: 4-Speed Automatic
Transmission (AW81-40)
REMOVAL AND INSTALLATION
32. Lower the vehicle.
36. Connect the transaxle breather hose.
33. Connect the vehicle speed sensor (VSS)
electrical connector.
34. Connect the transmission range (TR)
sensor electrical connector.
35. Connect the transaxle wiring harness
electrical connector. 37. Connect
the turbine shaft speed (TSS)
sensor electrical connector.
I I
38. Attach the ground cable to the transaxle.
2006.0 Fiesta 1212006 G371506en
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Page 1035 of 1226
Automatic Transmission/Transaxle -
Vehicles With: 4-Speed Automatic
Transmission (AW81-40)
REMOVAL AND INSTALLATION
39. Install the engine wiring harness support 42. Tighten the engine rear mount center
brackets. retaining nut.
40. Attach the engine ground cable to the 43. Install the battery tray support bracket.
transaxle.
44. Tighten the strut and spring assembly top
41. Tighten the engine rear mount outer mount
retaining nuts on both sides.
retaining nuts.
45. Install the front wheels and tires.
For additional information, refer to: Wheel
and Tire
(204-04 Wheels and Tires,
Removal and Installation).
2006.0 Fiesta 1212006 G371506en
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Page 1094 of 1226
308-0314 Manual Transmission/Transaxle 308-03-4 -- --
SPECIFICATIONS
2006.0 Fiesta 1212006 GII 3289en
Item
Transaxle housing final drive cover retaining bolts
Transaxle to engine retaining bolts
Engine support insulator to engine retaining bolt
Engine support insulator to
subframe retaining bolts
Engine rear mount outer retaining nuts
Exhaust flexible pipe retaining nuts
Wiring harness retaining bracket retaining nut Power steering high-pressure line retaining bracket
retaining bolt
Lower arm ball joint to the wheel knuckle retaining
nut
Engine rear mount center retaining nut
Intermediate shaft center bearing retaining nuts
Strut and spring assembly top mount retaining nuts
Transmission fluid filler plug
Starter motor retaining bolts
Starter motor wiring harness retaining bracket retaining nuts Nm
12
47
48
48
48
44
22
25
52
90
25
48 35
35
20
Ib-ft
9
35
35
35
35
32
16
21
38
66
18
35
26
26
15
I b-in
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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Page 1114 of 1226
308-03-24 Manual Transmission/Transaxle 308-03-24
REMOVAL
5. Install the special tools. 9. Disconnect the reversing lamp switch
electrical connector.
//
I I
6. Remove the transaxle upper retaining bolts.
Detach the engine wiring harness bracket Vehicles with automated gearshift
from the transaxle. 10. Remove the gearshift actuator cover.
7. Remove the front wheels and tires. 11. Disconnect the gearshift actuator electrical
For additional information, refer to: Wheel connector (colored
black).
and Tire
(204-04 Wheels and Tires, Removal
and Installation).
8. Remove the starter motor.
Detach the starter motor electrical connector
from the starter motor.
2006.0 Fiesta 1212006 - Gl13290en
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Page 1120 of 1226
308-03-30 Manual Transmission/Transaxle 308-03-30
REMOVAL
Transaxle - 2.OL Duratec-HE (M14)(16 11 4 0)
Special Tool(s)
I I Support Bar, Engine
Adapter for 303-290A
303-290-0 1 (2 1 -1 40-0 1
)
Adapter for 303-290A
303-290-03A (2 1
- 1 40-03A)
21 14003
@ 21 14005
General Equipment
Adapter for 303-290A
303-290-05A (2 1
-1 40-05A)
21 14006
I Retaining strap I
Adapter for 303-290A
303-290-06 (2 1 -1 40-06)
I Transmission jack I
Removal
1. Remove the air cleaner.
For additional information, refer to: Air
Cleaner
- 2.OL Duratec-HE (M14) (303-12
Intake Air Distribution and Filtering,
Removal and Installation).
2. Remove the battery tray.
For additional information, refer to: Battery
Tray
- 2.OL Duratec-HE (M14) (414-01
Battery, Mounting and Cables, Removal
and Installation).
3. Install the special tools.
4. Remove the engine wiring harness bracket.
2006.0 Fiesta 1212006 G453416en
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