2007 FORD FIESTA Electrical

303-1 2-7 Intake Air Distribution and Filtering 303-1 2-7
DIAGNOSIS AND TESTING
Intake Air Distribution and Filtering
Inspection and Verification 3. If an obvious cause for an observed or reported
concern is found, correct the cause (if possible)
1. Verify the customer concern. before proceeding
to the next step.
2. Visually inspect for obvious signs of mechanical 4. If the cause is not visually evident, verify the
or electrical damage. symptom and
refer to the Symptom Chart.
Visual
Ins~ection Chart
I Mechanical I Electrical I
- Air cleaner element
- Air cleaner intake
pipe
- Air cleaner outlet
pipe
- Charge air cooler
(Vehicles with
1.6L
Duratorq-TDCi (DV)
Diesel engine)
- Charge air cooler
intake hose
(Vehicles with
1.6L
Duratorq-TDCi (DV)
Diesel engine)
- Charge air cooler
outlet hose (Vehicles
with
I .6L Duratorq-
TDCi (DV) Diesel
engine)
- Mass air flow (MAF)
sensor
- Manifold absolute
pressure (MAP)
sensor (Vehicles with
1.6L Duratorq-TDCi
(DV) Diesel engine)
- Electrical
connector(s)
Symptom Chart
Symptom
Excessive intake air noise Possible Sources
Detached air cleaner
pipe(s).
Detached turbocharger pipe(s)
(Vehicles with Duratorq-TDCi
(DV) Diesel engine or
1.6L
Duratorq-TDCi (DV) Diesel
engine). Detached charge air cooler
hose(s) (Vehicles with 1.6L
Duratorq-TDCi (DV) Diesel
engine). Action
CHECK the
pipe(s) for security
and leaks to atmosphere.
INSTALL new intake air
components as necessary.
TEST the system for normal
operation.
2006.0 Fiesta 1212006 G421937en
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303-1 3-3 Evaporative Emissions 303-1 3-3
DIAGNOSIS AND TESTING
Evaporative Emissions
i
Inspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical
or electrical damage.
Visual Inspection Chart
I Mechanical I Electrical I
- Vacuum line(s)
- Evaporative emis-
sion (EVAP) system
canister
- EVAP system
hose(s)
- EVAP system
canister purge valve
I - Fuse(s) I I - Wiring harness
- Electrical
connector(s)
3. If an obvious cause for an observed or reported
concern is found, correct the cause (if possible)
before proceeding to the next step.
4. If the cause is not visually evident, verify the
i
' symptom and refer to WDS to diagnose the
' system.
2006.0 Fiesta 12/2006 G28748en
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303-1 3-5 Evaporative Emissions 303-1 3-5
REMOVAL
AND INSTALLATION
ACAUTION:U~~ a suitable packing material 9m ACAUTION:W~~~ lowering the fuel tank,
to prevent damage to the underside of the make
sure that excessive strain is not placed
fuel tank. on
the fuel lines and electrical connectors.
Using a suitable transmission jack, support Partially lower
the fuel tank.
the fuel tank.
10. Disconnect the fuel tank vent pipe from the
7. Remove the fuel tank support strap rear evaporative
emission canister. For
retaining bolts. additional information,
refer to
Section 31 0-00 [Fuel System
- General
Information].
8. N0TE:Make note of the positions of the
support straps to make sure they are
positioned in exactly the same positions
11. Disconnect the back pressure valve from
when installing (left-hand over right-hand). the
evaporative emission canister.
Remove the fuel tank support straps.
Hold the cap against the canister and pull
the back pressure valve.
2006.0 Fiesta 1212006 G210050en
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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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303-1 4-21 Electronic Engine Controls 303-1 4-21
DIAGNOSIS AND TESTING
lnspection and Verification
MIL Code
U0121
U0122
U0155
B1213
B1600
B1601
B1602
B1681
B2103
B2139
B2141
B2431
U2510
1. Verify the customer concern by operating the
( I system.
2. Visually inspect for obvious signs of mechanical
or electrical damage. Description
CAN missing frame from ABS
CAN missing frame from ESP
CAN missing frame from HEC
Number of Passive Anti-Theft System (PATS) programmed keys is below minimum
PATS ignition key transponder signal is not received
PATS received incorrect key-code from ignition key transponder
PATS received invalid format of key-code from ignition key transponder
PATS transceiver module signal is not received
PATS immobilizer antenna not connected
PATS immobilizer challenge response doesn't match
PATS immobilizer no PCM-ID transferred
PATS immobilizer transponder programming failure
PATS immobilizer problem with messages on data link
Visual Inspection Chart
Mechanical
I Electrical
- Sensors
- Actuators - Wiring harness
- Electrical
connector(s)
- Powertrain control
module (PCM)
3. If an obvious cause for an observed or reported
concern is found, correct the cause (if possible)
before proceeding to the next step.
4. If the cause is not visually evident, verify the
symptom and refer to WDS or equivalent scan
tool for further diagnostics.
- -
2006.0 Fiesta 1212006 G384566en
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303-1 4-22 Electronic Engine Controls
REMOVAL AND INSTALLATION
Powertrain Control Module (PCM) - I .25L Duratec-1 6V
(Sigma)/l.4L Duratec-1 6V (Sigma)/l .6L Duratec-1 6V
(Sigma)(29 200 0)
c
Removal
Special Tool(s) 3. Insert the special tool into the PCM electrical
N0TE:lf a new PCM is being installed connect
WDS. Upload the PCM configuration information
using the programmable modules installation
routine prior to commencing the removal of the
PCM. Drill
Bush, Powertrain Control
Module
4 1 8-537 (29-0 1 6)
1. Remove the battery tray. connector.
For additional information, refer to: Battery
Tray (414-01, Removal and Installation).
2. Position the PCM on the battery tray support
panel.
4m ACAUTION:M~~~ sure the special tool is
used to guide the drill bit. Failure to follow
this instruction may result in damage to the
electrical connector.
f
Using the special tool as a guide, drill into (
the shear bolt using a 6mm drill bit, until the
head is removed.
5. Remove the special tool from the PCM
electrical connector and clean all foreign
material from the electrical connector.
6. Disconnect the PCM electrical connector and
remove the PCM.
2006.0 Fiesta 1212006 GI 00753en
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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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