ECU FORD FIESTA 2007 Repair Manual

303-1 4-1 Electronic Engine Controls 303-1 4-1
SECTION 303-1 4 Electronic Engine Controls
VEHICLE APPLICATION:2006.0 Fiesta
CONTENTS PAGE
SPECIFICATIONS
Specifications ........................................................................\
.............................................. 303-1 4-2
DESCRIPTION AND OPERATION
Electronic Engine Controls . 1.25L Duratec-16V (Sigma)/l.4L Duratec-I 6V (Sigma)/l . 6L
Duratec-1 6V (Sigma) ........................................................................\
................................
Overview ........................................................................\
.....................................................
Throttle Control Unit (TCU) ........................................................................\
.........................
CPP switch ........................................................................\
..............................................
(Brake Pedal Position) BPP switch ........................................................................\
.........
APP sensor ........................................................................\
.............................................
Electronic Engine Controls - 2.OL Duratec-HE (M14) .......................................................
System Overview, 2.OL Duratec HE (M14) Engine .............................................................
........................................................................\
............................................... Components
DIAGNOSIS AND TESTING
Electronic Engine Controls ........................................................................\
..................... 303-1 4-1 4
Principles of Operation
........................................................................\
............................... 303-1 4-1 4
MIL Code List
........................................................................\
............................................. 303-14-1 7
Inspection and Verification ........................................................................\
.......................... 303-1 4-21
REMOVAL AND INSTALLATION
Powertrain Control Module (PCM) . 1.25L Duratec-1 6V (Sigma)/l.4L
Duratec-16V (Sigma)/l.GL Duratec-1 6V (Sigma) ......................................... (29 200 0) 303-14-22
Powertrain Control Module (PCM)
- 2.OL Duratec-HE (M14), Vehicles With: PCM Security
Shield
........................................................................\
................................................... 303-14-24
Powertrain Control Module (PCM)
- 2.OL Duratec-HE (M14), Vehicles Without: PCM
Security Shield
........................................................................\
.......................................... 303-1 4-27
Heated Oxygen Sensor
(H02S) .................................................................. (29 220 0) 303-14-30
Crankshaft Position (CKP) Sensor
........................................................................\
........... 303-1 4-32
Knock Sensor (KS)
........................................................................\
................................ 303-1 4-35
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303-1 4-1 2 Electronic Engine Controls 303-1 4-1 2
DESCRIPTION AND OPERATION
Powertrain control module (PCM) The KS detects engine vibrations caused by knock
and produces an output voltage signal in proportion
, to the knock. The PCM uses the voltage signal to(
control knock by retarding the ignition timing.
The powertrain control module is located within the
engine compartment below the battery and is
secured to the left-hand chassis rail by means of
a mounting bracket. On right-hand drive vehicles
the PCM is protected by a security shield which is
secured to the retaining bracket by a shear-head
bolt. In order to disconnect the PCM electrical
connectors it is necessary to remove the security
shield.
The PCM monitors and processes the signals from
the sensors and compares these with stored
parameters. The PCM uses this information to
calculate the output signals to the actuators.
Communications between the PCM and other
control units (for example, the stability assist and
the instrument cluster) including the DLC for
diagnosis of the system, take place on the
controller area network (CAN).
Intake manifold tuning valve solenoid
The solenoid for the intake manifold tuning system
is located on the transmission side of the cylinder
head.
Vacuum is supplied by a central vacuum
connection from the intake manifold.
The solenoid for the intake manifold tuning system
is supplied with either the maximum voltage or zero
voltage,
i.e. the valves are either fully open or fully
closed.
Actuation depends on the engine speed and the
engine load.
Diagnosis can be carried out through the DLC
using the Worldwide Diagnostic System (WDS)
BPP switch
diagnostic equipment.
Knock sensor (KS)
The BPP switch and the stoplamp switch are tt(r located on the pedal box and provide the PCM with
the information that the brake pedal has been
pressed and that the vehicle is therefore being
The knock sensor is located on the cylinder block decelerated.
between cylinders
2 and 3.
2006.0 Fiesta 1212006 G422229en
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Electronic Engine Controls
DIAGNOSIS AND TESTING
detected in either the STFT or LTFT, and it is still
present on a second trip, the MIL will be switched
on.
Heated Oxygen Sensor (H02S) Monitor (All except
vehicles with diesel engine)
This monitors the operation of the pre (upstream)
and post (downstream) catalytic converter
H02S
sensors. It will detect deviations in airlfuel ratios
(AFR) and sensor faults.
The
H02S will cause emission increase when its
response time increases too much. To diagnose
a sensor a period is measured and the number of
leanlrich transitions are counted. The sum of valid
periods is then calculated. To avoid
non-representative measurements, the period is
valid only if the
H02S has been below a low
threshold and above a high threshold between 2
consecutive leanlrich transitions.
A failure is
declared when the sum of the measured periods
exceeds the sum of the corresponding limit (held
within the PCM) and the MIL is illuminated.
Catalytic Converter Efficiency Monitor (All except
vehicles with diesel engine)
The efficiency of a catalytic converter is measured
by its ability to store and later release oxygen to
convert harmful gases. The efficiency is reduced
if the converter becomes contaminated as it ages,
and at high gas flow rates, because the exhaust
gas does not remain in the converter long enough
to complete the conversion process. switches
over or until the end of a delay. If this
delay expires or the sensor does not switch, the
sensor is treated as failed.
Combustion Noise Monitor (Vehicles with common
rail fuel injection)
In diesel variants, the Combustion Noise Monitor
is used to trim the fuel injection pulse lengths. Each
fuel injector has an associated set of correction
data that is determined during a production end of
line test. The Combustion Noise Monitor is used
to determine how the fuel injector characteristic
changes from this initial calibration over the life of
the fuel injector.
EGR Monitor (Vehicles with diesel engine)
The functionality of the EGR system is checked by
comparing either the MAP sensor output or EGR
valve lift potentiometer output (depending upon
application) with expected values.
Diagnostic Requirements
Vehicles equipped with EOBD, can be diagnosed
using the WDS. In order for the EOBD system to
be invoked, a number of criteria must be met. After
any repair, which could affect emissions, a trip must
be carried out on the vehicle, to make sure that
engine management system operates correctly.
Malfunction Indicator Lamp (MIL)
The MIL is located in the instrument cluster and is
fitted to alert the driver to the fact that an abnormal
This monitor checks for the oxygen storage condition
has developed in the engine management
capacity (OSC) of the catalytic converter. During system,
that is having an adverse effect on
a controlled period, the catalyst monitor sensor emissions.
In cases of misfires which are likely to
signal is analyzed to evaluate the OSC of the cause
catalytic converter damage, it is switched
catalyst. It represents the quantity of oxygen that on immediately.
With all other faults it will illuminate
is really used for the oxidation-reduction reaction continuously
from the second trip after the condition
by the catalytic converter If a fault has occurred occurred.
Under normal operation it should
with the catalyst monitor sensor during the catalyst illuminate
at key-on and go out almost as soon as
diagnosis, a sensor diagnosis is carried out. During the
engine is started.
the controlled diagnosis phase, the catalyst monitor
Diagnostic Trouble Codes (DTCs) sensor activity is measured and is compared to the
OSC of the catalyst. If this activity is high (low The
DTCs given
by the PCM are standardized,
0SC)theMILwillbeilluminated.Ifthroughoutthe whichmeansthatgenericscantoolscanread
controlled phase, repeated several times, the results from
all vehicles.
downstream sensor output has not moved, the
closed loop mode is delayed in order to test the
sensor. If the catalyst monitor sensor is set to rich,
the injection time is forced to lean and conversely
if the downstream sensor is set to lean, the
injection time is forced to rich until the sensor
2006.0 Fiesta 1212006 G384566en
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303-1 4-23 Electronic Engine Controls 303-1 4-23
REMOVAL AND INSTALLATION
7. Remove the remains of the shear bolt from 4.
If a new PCM is being installed connect WDS.
/ the PCM using grips. Download the PCM configuration information
using the programmable modules installation
routine.
5. N0TE:Do not press the accelerator pedal
during the initialization period as this will
prevent the complete initialization of the
throttle body.
Turn the ignition key to position
I1 and wait
for one minute to initialize the throttle body.
6. Turn the ignition key to the OFF position.
Installation
I. Install a new shear bolt and securing clip,
using the special tool to push the clip onto
the shank of the bolt.
2. Install the PCM electrical connector to the
PCM.
Tighten the bolt until the head shears off.
3. Install the battery tray.
For additional information, refer to: Battery
Tray
(414-01, Removal and Installation).
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303-1 4-24 Electronic Engine Controls 303-1 4-24
Powertrain Control Module (PCM) - 2.OL Duratec-HE (M14),
Vehicles With: PCM Security Shield c
N0TE:lf a new PCM is being installed connect the 4. Remove the PCM mounting bracket lower
Worldwide Diagnostic System (WDS). Upload the retaining bolt.
PCM configuration information using the
programmable modules installation routine prior to
commencing the removal of the PCM.
1. Remove the battery tray.
For additional information, refer to: Battery
Tray
(414-01, Removal and Installation).
2. Raise and support the vehicle.
For additional information, refer to: Lifting
(1 00-02 Jacking and Lifting, Description
and Operation).
3. Disconnect the ambient air temperature
sensor electrical connector and detach the
wiring harness from the retaining clip.
5. Lower the vehicle.
6. Remove the PCM mounting bracket upper
retaining bolt.
7. Position the PCM, PCM retaining bracket and
PCM mounting bracket on the battery tray
support panel.
8. Remove the components in the order
indicated in the following
illustration(s) and
table(s).
2006.0 Fiesta 1212006 G422234en
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303-1 4-25 Electronic Engine Controls 30311 4-25
REMOVAL AND INSTALLATION
Item Description
2 PCM security shield
I I See Removal Detail
1
11FEKGPCMitrica1 connectors I
PCM security shield shear bolts
See Removal Detail
See Installation Detail
PCM retaining bolts
See Removal Detail
-- -
1 5 1 PCM retaining bracket I
Item Descri~tion
1 6 1 PCM mounting bracket I
1 I removal Detail
9. 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 121~0o6 G422234en
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30311 4-26 Electronic Engine Controls 303-1 4-26
REMOVAL AND INSTALLATION
Removal Details
Item 1 PCM security shield shear bolts Item 4 PCM retaining bolts 1. Remove the PCM security shield shear bolts. 1. Support the PCM, PCM retaining bracket and Drill a 3 mm pilot hole in the center of the PCM mounting bracket while removing the PCM security shield shear bolts. PCM retaining bolts. Drill a 8 mm hole in the PCM security shield
shear bolts and remove the PCM security
Item 7 PCM
shield. I. Remove the PCM from the PCM retaining
bracket.
Item 2 PCM security shield
I. Remove the PCM security shield.
1. Swing the PCM security shied away from the
PCM retaining bracket.
2. Slide the PCM security shield from the PCM
retaining bracket.
Installation Details
Item 1 PCM security shield shear bolts
1. Tighten the PCM security shield shear bolts
until the head of the bolt shears off.
2006.0 Fiesta 1212006 G422234en
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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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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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Automatic Transmission/Transaxle -
Vehicles With: 4-Speed Automatic
307-01 -1 3 Transmission (AW81-40) 307-01 -1 3
DESCRIPTION AND OPERATION
Internal gearshift mechanism
Item Description The movement is then transferred via the selector
1
2
I I I The cone displaces the parking pawl when the
The mechanical parking lock secures the vehicle
selector lever position wPw is against rolling away.
The parking pawl engages in the teeth on the
When the vehicle is stationary it is engaged purely
output wheel of the planetary gearset. mechanically via the selector lever when the
selector lever position "P" is engaged. Accordingly,
the differential is blocked via the
intermediate shaft, and the vehicle is secured and
The movement of the selector lever is transmitted
cannot roll away. via the selector lever cable to the selector shaft Stepped cam
with actuating lever for the
3
4
lever. Selector
shaft
2006.0 Fiesta 1212006 G380521 en
shaft to the stepped cam.
forms part of the stepped cam, and it is used to
actuate the manual selector slide in the main
Actuating rod for the parking pawl with cone
Parking pawl
manual
selector slide
control body.
The actuating rod for the parking pawl with cone
is hooked into the stepped cam.
The actuating lever for
the manual selector slide
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