
303-1 4-1 7 Electronic Engine Controls 303-1 4-1 7
DIAGNOSIS AND TESTING
The DTC is always a 5 digit alphanumerical
code, for example
"POI 00".
The first digit of a code (letter) identifies the
system which has set the code. Provision has
been made for a total of four systems to be
identified although only the
'PI code is required
for EOBD.
- 'B' for the body
- 'C' for the chassis
- 'P' for the powertrain
- 'U' for the network communications systems
All of the
"xOxxxW codes are standardized codes.
However, any manufacturer can use additional
codes over and above the standardized codes.
These will be labelled
"xlxxx"
The third digit of a code (numeric) identifies the
sub-system which has set the code.
- 'Pxlxx' for metering of fuel and air supply
- 'Px2xx' for metering of fuel and air supply
- 'Px3xx' for ignition system - combustion
misfires
- 'Px4xx' for auxiliary emission control
equipment
- 'Px5xx' for vehicle speed, idle setting and
other related inputs
- 'Px6xx' for trip computer and other related
outputs
- 'Px7xx' for transmission.
- 'Px8xx' for transmission.
- 'Px9xx' category to be determined
- 'PxOxx' category to be determined
When a concern occurs, the actions taken
include storage of the relevant information and
actuation of the MIL occurs in line with the
relevant legislation.
MIL Code List
I PO030 I Heated oxygen sensor (H02S) heater open circuit I
! '
-1 H02S heater low voltage I
I PO032 I H02S heater high voltage I
MILCode
PO036 1- ' Catalyst monitor sensor heater open circuit I
Description
PO037
I PO054 I Catalyst monitor sensor heater resistance out of limits I
Catalyst monitor sensor heater low voltage
PO038
PO053
I PO106 I Manifold absolute pressure (MAP) sensor plausibility malfunction I
-
Catalyst monitor sensor heater high voltage
H02S heater resistance out of limits
I PO107 I MAP sensor circuit low input I
PO108
PO1 09 MAP sensor
circuit high input
MAP sensor temporary malfunction
PO1 12
PO113
I PO117 I ECT circuit low input I
Intake air temperature (IAT) circuit low input
IAT circuit high input
I
2006.0 Fiesta 1212006 G384566en
PO114
PO1 16
PO118
IAT intermittent failure
Engine coolant temperature (ECT) signal stuck at low level
ECT circuit high input
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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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Automatic Transmission/Transaxle -
Vehicles With: 4-Speed Automatic
307-01 -67 Transmission (AW81-40) 307-01 -67
REMOVAL AND INSTALLATION
See - Transmission Fluids.
27. Lower the vehicle.
28. Remove the battery tray support bracket.
Allow the fluid to drain into a suitable
container.
For additional information, refer to: Health
and Safety Precautions
(1 00-00 General
Information, Description and Operation).
See
- Transmission Fluids.
30.
Install the special tools.
29m AWARNING:~~~~ releasing the
transmission fluid, take care to prevent
scolding. Failure to follow this instruction
may result in personal injury.
31. Remove the engine and transaxle rear
A CAUTI0N:Plug the transmission fluid
mount.
cooler feed and return lines to prevent fluid
loss or dirt ingress.
Discard the nuts.
For additional information, refer to: Health
and Safety Precautions
(1 00-00 General
Information, Description and Operation).
See
- Transmission Fluids.
N0TE:Mark the position of the feed and return
lines to aid installation.
Detach the transmission fluid cooler lines
from the transmission.
1. Push the transmission fluid cooler line quick
release connector onto the transmission.
2. Press together the retaining tabs and detach
the transmission fluid cooler line from the
transmission.
2006.0 Fiesta 1212006 G371506en
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TransmissionlTransaxle Cooling - Vehicles
With: 4-Speed Automatic Transmission
307-0214 (AW81-40) 307-02-4
REMOVAL AND INSTALLATION
Transmission Fluid Cooler(l7 834 0)
Removal
A WARN1NG:Refer to the Material Safety Data
Sheets for the Automatic Transmission
Fluid E-AW. Failure to follow this
instruction. may result in personal injury.
Certain Transmission and Power Steering
fluids supplied to Ford contain additives
which may cause skin irritation or other
skin reactions after contact.
For additional information, refer to: Health
and Safety Precautions (1 00-00 General
4m AWARNING:~~~~ releasing the
transmission fluid, take care to prevent
scolding. Failure to follow this instruction
may result in personal injury.
A CAUTI0N:PIug the transmission fluid
cooler lines to prevent fluid loss or dirt
ingress.
For additional information, refer to: Health
and Safety Precautions (1 00-00 General
Information, Description and Operation).
See
- Transmission Fluids.
Information, and Operation)' NOTE:Mark the position of the feed and return See - Transmission Fluids. lines to aid installation.
1. Remove the front bumper cover.
Detach the transmission fluid lines from the
For additional information, refer to: Front
transmission fluid cooler.
Bumper Cover (501-19 Removal 1. Push the transmission fluid cooler line quick and Installation). release connector toward the transmission
2. Remove the radiator air deflector. fluid cooler.
3. Detach the power steering fluid line from the
radiator grille.
2. Press together the retaining tabs and detach
the transmission fluid line from the
transmission fluid cooler.
Allow the fluid to drain into a suitable
container.
For additional information, refer to: Health
and Safety Precautions
(1 00-00 General
Information, Description and Operation).
See
- Transmission Fluids.
2006.0 Fiesta 1~12006 G388009en
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TransmissionlTransaxle Cooling - Vehicles
With: 4-Speed Automatic Transmission
307-02-6 (AW81-40)
307-0216
REMOVAL AND INSTALLATION
Transmission Fluid Cooler Tubes(l7 857 0)
Removal See - Transmission Fluids.
A WARNING:Refer to the Material Safety Data
Sheets for the Automatic Transmission
Fluid
E-AW. Failure to follow this
instruction may result
in personal injury.
Certain Transmission and Power Steering
fluids supplied to Ford contain additives
which may cause skin irritation or other
skin reactions after contact.
For additional information, refer to: Health
and Safety Precautions (1
00-00 General
Information, Description and Operation).
See
- Transmission Fluids.
1. Raise and support the vehicle.
For additional information, refer to: Lifting
(1
00-02 Jacking and Lifting, Description
and Operation).
*' AWARNING:~~~~ releasing the
transmission fluid, take care to prevent
scolding. Failure to follow this instruction
may result
in personal injury.
A CAUTl0N:Plug the transmission fluid
cooler lines to prevent fluid loss or dirt
ingress.
For additional information, refer to: Health
and Safety Precautions (1
00-00 General
Information, Description and Operation).
See
- Transmission Fluids.
N0TE:Mark the position of the feed and return
lines to aid installation.
Detach the transmission fluid cooler lines
from the transmission.
I. Push the transmission fluid cooler line quick
release connector toward the transmission.
2. Press together the retaining tabs and detach
the transmission fluid cooler line from the
automatic transmission.
Allow the fluid to drain into a suitable
container.
For additional information, refer to: Health
and Safety Precautions
(1 00-00 General
Information, Description and Operation).
3m AWARNING:~~~~ releasing the
transmission fluid, take care to prevent
scolding. Failure to follow this instruction
may result
in personal injury.
A CAUTI0N:PIug the transmission fluid
cooler lines to prevent fluid loss or dirt
ingress.
For additional information, refer to: Health
and Safety Precautions (1
00-00 General
Information, Description and Operation).
See
- Transmission Fluids.
N0TE:Mark the position of the feed and return
lines to aid installation.
Remove the transmission fluid cooler lines.
1. Push the transmission fluid cooler line quick
release connector toward the transmission
fluid cooler.
2. Press together the retaining tabs and detach
the transmission fluid cooler line from the
transmission fluid cooler.
Allow the fluid to drain into a suitable
container.
For additional information, refer to: Health
and Safety Precautions
(1 00-00 General
Information, Description and Operation).
2006.0 Fiesta 1212006 G388010en
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308-03-1 0 Manual Transmission/Transaxle 308-03-1 0
DESCRIPTION AND OPERATION
Differential assembly
Item Description
I 1 1 Bearing I
1 2 1 Crown wheel I
1 3 1 Differential assembly I
4 Sender wheel - Vehicle Speed Sensor
I I (VSS)
The differential assembly is built into the
transmission housing.
The drive torque is transmitted to the differential
by the crown wheel which is bolted to it. The differential
assembly contains differential
pinion gears mounted on a spindle and the axle
halfshaft pinion gears which connect to the front
wheel axle halfshafts through helical gearing.
The axle halfshaft pinion gears can revolve around
the differential pinion gears when the road wheel
speeds are different
(e.g when cornering).
On vehicles without Anti-lock Brake System (ABS)
a VSS detects the speed of the differential
assembly at the VSS sender wheel.
On vehicles with ABS the VSS sender wheel is
also installed. The VSS is however not installed in
this case. A plug with an O-ring closes the
corresponding bore instead.
2006.0 Fiesta la2006 G281365en
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31 0-00-5 Fuel System - General Information 31 0-00-5
GENERAL PROCEDURES
Quick Release Coupling
i 1 General Equipment 2. Disconnect the fuel line quick release
coupling.
Flat-bladed screwdriver
Disconnection
WARNINGS:
A Do not carry lighted tobacco or open flame
of any type when working on or near any
fuel related components. Highly flammable
vapors are always present and can ignite.
Failure to follow these instructions may
result in personal injury.
A This procedure involves fuel handling. Be
prepared for fuel spillage at all times and
always observe fuel handling precautions.
Failure to follow these instructions may
result in personal injury. 3.
Disconnect the fuel line quick release
coupling.
1. Pull the fuel line quick release coupling
CAUTI0N:Fuel injection equipment is locking tang.
manufactured to very precise tolerances 2. Push the clip through the fuel line quick
and fine clearances. It is therefore essential release coupling to release the fuel line.
that absolute cleanliness is observed when I
i
working with these components. Always
install blanking plugs to any open orifices
or lines.
N0TE:Fuel supply line connectors are white or are
identified by a white band. Fuel return line
connectors are red or are identified by a red band.
1. Release the fuel system pressure.
For additional information, refer to: Fuel
System Pressure Release (31
0-00 Fuel
Svstem - General Information, General
2. Disconnect the fuel line quick release 4. Disconnect the fuel line quick release
coupling. coupling.
1. Press the fuel line quick release coupling 1. Press the fuel line quick release coupling
locking tangs. locking tangs.
2006.0 Fiesta 1212006 GI 81 92en
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31 0-00-7 Fuel System - General Information 31 0-00-7
GENERAL PROCEDURES
10. Using a suitable Flat-bladed screwdriver 2. Disconnect the fuel line from the fuel filter.
release the fuel line quick release coupling
( secondary locking tang.
Connect
11. Operate the fuel line quick release coupling WARNINGS:
primary locking tang.
Push the fuel line quick release coupling
primary locking tang into from the fuel line
quick release coupling.
12. Disconnect the fuel line from the fuel line
quick release coupling.
13. Disconnect the fuel line from the fuel filter.
1 . Press the collar into the connector body.
Do not carry lighted tobacco or open flame
of any type when working on or near any
fuel related components. Highly flammable
vapors are always present and can ignite.
Failure to follow these instructions may
result in personal injury.
A This procedure involves fuel handling. Be
prepared for fuel spillage at all times and
always observe fuel handling precautions.
Failure to follow these instructions may
result in personal injury.
A CAUTI0N:Fuel injection equipment is
manufactured to very precise tolerances
and fine clearances.
It is therefore essential
that absolute cleanliness is observed when
working with these components. Always
install blanking plugs to any open orifices
or lines.
N0TE:Fuel supply line connectors are white or are
identified by a white band. Fuel return line
connectors are red or are identified by a red band.
1. Push the connector on to the fuel filter.
2006.0 Fiesta 1212006 GI 81 92en
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