2011 FORD KUGA ignition

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
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 57
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

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
307-01- 58
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

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
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

The TR sensor
E125819
The TR sensor and the TCM form one unit. This
unit is located at the top of the transmission casing,
on the gear linkage.
Function
The TR sensor has three separate functions:
• Transmit a signal to the TCM about the selectedtransmission range.
• To transmit the signal to switch on the reversing lamps to the GEM when the selector lever is in
the 'R' position.
• To transmit the start enable signal to the PCM when the selector lever is in the 'P' or 'N'
position.
The TR sensor contains a permanent magnet and
a linear Hall detector. It produces a signal voltage
between 0 and 5 V. This signal voltage
corresponds to the selector lever position currently
chosen.
Voltage values for the different gears:
• P approximately 0.65 V
• R approximately 1.64 V
• N approximately 2.12 V
• D approximately 2.49 V
Consequences of signal failure
If the TR sensor fails, the MIL is activated and the
vehicle can be driven in emergency mode 4. The
vehicle can no longer be started for safety reasons
after the ignition is switched off because the TCM
does not detect the current transmission range.
If a shift solenoid valve fails, the MIL is activated
and the vehicle can be driven in the appropriate
emergency mode.
G1163605en2008.50 Kuga8/2011
307-01- 60
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 60
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

Fault Memory Interrogation without
diagnostics unit - vehicles with
automatic temperature control
NOTE:On vehicles equipped with a DVD
navigation system with touchscreen, the fault
memory can only be interrogated using the Ford
diagnostic tool.
The climate control and heating system features
a on-board diagnosis function which can detect
and store both current permanent faults as well as
intermittent faults which have occurred during
normal operation of the vehicle. It is also possible
to read out these faults via the display on the
control panel of the climate control system. To read
out the fault memory, the ignition key must be
turned to the "ON" position and the battery voltage
must be between 9 V and 16 V.
To activate the on-board diagnosis at the control
panel for the climate control system, PRESS the
"OFF" and "FOOTWELL" buttons simultaneously
for exactly 2 seconds, then PRESS "AUTO" within
1.5 seconds. The on-board diagnosis which then
starts lasts a few seconds. An animated display
appears in the display of the control panel for the
climate control system during this time. Any faults
found are displayed on both displays of the control
panel for the climate control system in the form of
trouble codes.
To read out saved errors at the control panel for
the climate control system, PRESS the "OFF" and
"FOOTWELL" buttons simultaneously for exactly
2 seconds, then PRESS "HEAD AREA" within 1.5
seconds. Any stored faults are shown on the
display of the control panel for the climate control
system and should be noted for safety reasons.
By PRESSING the "DEFROST" button, the fault
memory is cleared and diagnosis mode is ended.
To end the diagnostic mode without clearing the
DTCs, PRESS any other operating button on the
control panel for the climate control system.
To read out the software version at the control
panel for the climate control system, PRESS the
"OFF" and "FOOTWELL" buttons simultaneously
for exactly 2 seconds, then PRESS "A/C" within
1.5 seconds. The software version is shown on the
display of the control panel for the climate control
system. The output mode can be exited by
PRESSING any button on the control panel for the
climate control system.
Switch over from Celsius to Fahrenheit
The switch from Celsius to Fahrenheit is performed
on the display of the instrument cluster and is then
transmitted via the CAN bus to the module of the
two-zone air conditioning system.
G1034945en2008.50 Kuga8/2011
412-01- 11
Climate Control
412-01- 11
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL