Reset adaptation data
Adaptation values are stored in the software of the
TCM:
• Adaptation should be reset after an internalcomponent has been exchanged or the whole
transmission has been changed.
The adaptation of the transmission is reset via IDS.
Limp home mode
The TCM software contains functions which take
control of the transmission if serious faults occur.
The fault characteristic decides which strategies
are to be used.
The vehicle remains capable of restricted
operation.
The TCM strategy differentiates between four emergency modes adapted to the fault situation:
Gear
Position
Mode
4th
D, S+
Emergency 1
2nd
S-
Reverse
Reverse
3rd
D, S+
Emergency 2
2nd
S-
Reverse
Reverse
4th
D, S+
Emergency 3 (*)
2nd
S-
Reverse
Reverse
4th
D, S+, S-
Emergency 4
Reverse
Reverse
(*) As for Emergency 1 mode, the second gear will however be shifted using other solenoid valves.
Different measures are implemented, depending
on the current gear position and driving situation
when the fault occurs:
• When a fault occurs, the TCM makes it possible
for the vehicle to maintain restricted operation.
The distance travelled should be kept as short
as possible.
• Torque limitation is activated in order to protect the transaxle components.
• 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 (malfunction indicator lamp) is off.
However, the fault remains stored in the TCM.
If the fault is still present, limp home mode is
reactivated.
• If limp home mode is reactivated after the ignition is switched on, the option exists in select-shift mode to pull away in 2nd gear. This
is the case unless the transaxle is in emergency
mode 4. Only 4th gear and the reverse gear are
available in this mode.
Component Description
Tasks of the electronic components
The following overview summarizes the input and
output signals from the transmission control
module.
G1163605en2008.50 Kuga8/2011
307-01-
42
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 42
DESCRIPTION AND OPERATION
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FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL
