Page 951 of 1226
303-1 4-27 Electronic Engine Controls 303-1 4-27
REMOVAL AND INSTALLATION
Powertrain Control Module (PCM) - 2.OL Duratec-HE (M14),
Vehicles Without: PCM Security Shield
N0TE:lf a new PCM is being installed connect 2. Disconnect the ambient air temperature
WDS. Upload the PCM configuration information sensor electrical connector and detach the
using the programmable modules installation wiring harness from the retaining clip.
routine prior to commencing the removal of the
PCM.
1. Disconnect the battery ground cable.
For additional information, refer to: Battery
Disconnect
(414-01 Battery, Mounting and
Cables, General Procedures).
3. Remove the components in the order
indicated in the following
illustration(s) and
table(s).
2006.0 Fiesta 1212006 G422233en
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Page 952 of 1226
303-1 4-28 Electronic Engine Controls 303-1 4-28
REMOVAL AND INSTALLATION
Item Description
I 1 I PCM electrical connectors I
121
PCM retaining bolts
See Removal Detail
1 3 1 PCM retaining bracket I
1 4 1 PCM mounting bracket I
Removal Details
Item Description - - -
I I See Removal Detail I
4. To install, reverse the removal procedure.
N0TE:lf a new PCM is being installed connect
WDS. Download the PCM configuration information
using the programmable modules installation
routine after the installation of the PCM.
2006.0 Fiesta 1212006 G422233en
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Page 954 of 1226
303-1 4-30 Electronic Engine Controls 303-1 4-30
REMOVAL AND INSTALLATION
Heated Oxygen Sensor (H02S)(29 220 0) /
Removal
Special Tool(s) 4. Disconnect the H02S electrical connector. (. .. >k,
1. Remove the air cleaner. For additional
information, refer to Section 303-1 2 [Intake
Air Distribution and Filtering].
5. Remove the exhaust manifold heat shield.
2. Disconnect the ignition coil pack electrical
connector.
23050
3. Detach the ignition coil pack and position it
to one side
Socket, Fuel Injector (22mm)
31 0-063 (23-050)
6. Using the special tool, remove the H02S.
Installation
A CAUTI0N:When installing a new H02S, it
is possible that the new component will be (- supplied with a longer cable than the one ,
removed. It is important that the cable is
routed and secured in such a way that
it
2006.0 Fiesta 1212006 G210054en
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Page 957 of 1226
303-1 4-33 Electronic Engine Controls 303-1 4-33
REMOVAL AND INSTALLATION
Item Description Item Description
1 3 1 CKP sensor
I 1 I CKP sensor electrical connector
2
Installation Details
I See Installation Detail
Item 3 CKP sensor 2. Align the CKP sensor with the crankshaft
1. Install the CKP sensor alignment tool to the pulley
sensor ring.
CKP sensor.
CKP sensor retaining bolts
See Installation Detail
2006.0 Fiesta 1212006 ~423211 en
I I J
5. To install, reverse the removal procedure.
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Page 959 of 1226
303-1 4-35 Electronic Engine Controls 303-1 4-35
REMOVAL AND INSTALLATION
Knock Sensor (KS)
1. Detach the KS electrical connector from the 2, Remove the intake manifold. intake manifold.
For additional information, refer to: Intake
1 Manifold (303-01 Engine - 2.OL Duratec-HE
(M14), Invehicle Repair).
3. Remove the components in the order
indicated in the following
illustration(s) and
table(s).
Item Description Item Description
2 Coolant hose
I I See Removal Detail
1
I I
4. To install, reverse the removal procedure.
KS electrical connector
Removal Details
; I I
See Removal Detail
See Installation Detail
2006.0 Fiesta 1212006 G426587en
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Page 989 of 1226

Automatic Transmission/Transaxle -
Vehicles With: 4-Speed Automatic
Transmission (AW81-40)
DESCRIPTION AND OPERATION
Item Description
1 5 1 Generic Electronic Module (GEM) I
I
1 6 1 Turbine Shaft Speed (TSS) sensor I
1 7 1 Output Shaft Speed (OSS) sensor I
1
2
3
4
l tem Description
Transmission control unit
Data Link Connector (DLC)
Powertrain Control Module (PCM)
Instrument cluster
1 8 I Transmission Range (TR) sensor I
1 9 1 Starter inhibit relay I
1 10 1 Backup lamp relay I
11 Transmission Fluid Temperature (TFT)
I I sensor
1 12 loverdrive switch I
1 13 1 Driver's side door ajar switch I
1 14 1 Solenoid valves in the main control body 1
Transmission control unit
Item Description
Electrical connector, vehicle wiring
harness
connector, transmission wiring
harness
--
The transmission control unit is located in the
'engine compartment on the left-hand side member.
The transmission control unit evaluates incoming
signals and controls the actuators accordingly.
2006.0 Fiesta 1212006 G380530en
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Page 1002 of 1226
Automatic Transmission/Transaxle -
Vehicles With: 4-Speed Automatic
Transmission
(AW81-40)
DESCRIPTION AND OPERATION
Starter inhibit relay
2006.0 Fiesta
12/2006 G380530en
Item Description The starter inhibit relay is located in the central
1 Starter inhibit relay junction
box (CJB).
In the selector lever positions "P" and "Nu a ground N0TE:The engine cannot be started if the electrical signal is directed from the PCM via the TR sensor connector is disconnected from the TR sensor.
to the starter inhibit relay, as a result of which the
starter inhibit relay is actuated.
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Page 1004 of 1226

Automatic Transmission/Transaxle -
Vehicles With: 4-Speed Automatic
307-01
-44 Transmission (AW81-40) 307-01 -44
DESCRIPTION AND OPERATION
Solenoid for the ignition key removal
inhibitor
Solenoid for the ignition key removal
inhibitor
The solenoid for the ignition key removal inhibitor
is integrated in the ignition lock.
With the selector lever in position
"P", the ground
connection via the selector lever lock solenoid is
interrupted.
The ignition key can be turned to
"0" and removed
from the ignition lock.
In all other selector lever positions the ground
connection is made via the selector lever lock
solenoid.
The locking pin of the solenoid for the ignition key
removal inhibitor engages in the ignition lock.
The ignition key cannot be turned to
"0" and
removed from the ignition lock.
Consequences of signal failure:
A short to ground will make it impossible to
remove the ignition key from the ignition lock.
A break in the electrical circuit will make it
possible to remove the ignition key from the
ignition lock in all selector lever positions.
2006.0 Fiesta 12/2006 G380530en
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