FORD FIESTA 2007 Workshop Manual
Manufacturer: FORD, Model Year: 2007, Model line: FIESTA, Model: FORD FIESTA 2007Pages: 1226, PDF Size: 61.26 MB
Page 941 of 1226

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 4-1 8 Electronic Engine Controls 303-1 4-1 8
DIAGNOSIS AND TESTING
I PO123 I TP sensor circuit I high input I
MIL Code
PO119
PO 1 22
I PO130 I H02S circuit open circuit I
Description
ECT intermittent failure
Throttle position
(TP) sensor circuit 1 low input
I PO131 I H02S circuit low voltage I
pol34 r- HO~S IOW amplitude I
PO1 32
PO1 33
I PO136 I Catalyst monitor sensor circuit open circuit I
H02S circuit high voltage
H02S circuit slow response
I PO137 I Catalyst monitor sensor circuit low voltage I
PO1 38
PO1 39
I PO172 I Fuel system error, rich limit I
Catalyst monitor sensor circuit high voltage
Catalyst monitor sensor circuit slow response
PO171
PO171
Fuel system error, lean limit
Fuel system error
, NOx emissions
PO172
PO201
I PO203 I Cylinder No. 3 - injector circuit open circuit I
Fuel system error, HClCO emissions
Cylinder No.
I - injector circuit open circuit
PO202
I PO204 I Cylinder No. 4 - injector circuit open circuit I
Cylinder No. 2 - injector circuit open circuit
-1 TP sensor circuit 2 low input I
1 PO223 1 TP sensor circuit 2 high input I
I PO231 I Fuel pump input low voltage I
PO232
PO261
Fuel pump input high voltage
Cylinder No.
1 - injector circuit low voltage
PO262
PO264
1 PO267 1 Cylinder No. 3 - injector circuit low voltage I
Cylinder No. 1 - injector circuit high voltage
Cylinder No.
2 - injector circuit low voltage
PO265
1 PO268 1 Cylinder No. 3 - injector circuit high voltage I
-- -
Cylinder No. 2 - injector circuit high voltage I
I . PO270 I Cylinder No. 4 - injector circuit low voltage I
PO271
PO300
Cylinder No. 4 - injector circuit high voltage
Random misfire detected
PO301
2006.0 Fiesta 1212006 G384566en
Cylinder No. 1 misfire detected
PO302
-- -
Cylinder No. 2 misfire detected
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Page 943 of 1226

Electronic Engine Controls
DIAGNOSIS AND TESTING
I PO304 I Cylinder No. 4 misfire detected I
/ I
KS implausible signal I
MIL Code
PO303
PO31 5
PO324
1 PO335 1 Crankshaft position (CKP) sensor implausible signal I
Description
Cylinder No. 3 misfire detected
Flywheel segment adaptation at the Limit
Knock sensor (KS) communication error or implausible signal
1 PO336 1 CKP sensor missing teeth I
1 PO336 1 CKP sensor loss of synchronization I
1 PO336 1 CKP sensor no signal I
I PO340 I Camshaft position (CMP) sensor no signal I
I PO341 I CMP sensor implausible signal I
I PO351 I Ignition coil A primary malfunction I
1 PO352 1 Ignition coil B primary malfunction I
I PO420 I Catalyst system efficiency below threshold I
1 PO444 1 Evaporative mission canister purge valve open circuit I
1 PO458 1 Evaporative mission canister purge valve low voltage I
I '1 PO459 1 Evaporative mission canister purge valve high voltage I
I PO460 I Fuel tank level malfunction from instrument cluster I
-3 I VSS signal too high I
PO500
PO500
Vehicle speed sensor (VSS) signal malfunction
Vehicle speed via CAN (VS CAN) implausible signal
PO51 1
PO560
I PO603 I Powertrain control module (PCM) error NVMY or EEPROM error 1
Idle air control (IAC) valve circuit malfunction
Battery system voltage malfunction high voltage
PO562
PO571
I PO604 I PCM error RAM error I
Battery system voltage malfunction open circuit
Brake switch plausibility error
PO605 I PCM error checksum error I
I PO610 I VID block checksum not correct or not programmed I
I PO617 I Starter relay malfunction I
I PO620 I Generator circuit malfunction I
1 PO628 1 Fuel pump primary circuit low voltage I
I
7 1 Fuel pump primary circuit high voltage I
2006.0 Fiesta 1212006 G384566en
PO625
PO626
Generator low voltage
Generator high voltage
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Page 944 of 1226

303-1 4-20 Electronic Engine Controls 303-1 4-20
DIAGNOSIS AND TESTING
1 PO643 1 Transmission sensor power supply 1 high voltage I
MIL Code
PO641
PO642
1 PO646 1 Air conditioning (NC) clutch relay circuit low voltage I
1 PO647 1 NC clutch relay circuit high voltage I
Description
Transmission sensor power supply 1 noisy signal
Transmission sensor power supply
I low voltage
I PO651 I Transmission sensor power supply 2 noisy signal I
i
PO652
PO653
Transmission sensor power supply 2 low voltage
Transmission sensor power supply
2 high voltage
PO654
PO686
1 PO692 1 Cooling fan 1 control circuit high voltage I
Engine run output circuit malfunction
Main relay malfunction low voltage
PO687
PO691
1 PO693 1 Cooling fan 2 control circuit low voltage I
Main relay malfunction high voltage
Cooling fan
1 control circuit low voltage
1 PO694 1 Cooling fan 2 control circuit high voltage I
I PI500 I Vehicle speed sensor (VSS) output circuit malfunction I
PO704
PI 000
Generator command malfunction I
Clutch switch implausible signal
EOBD system readiness test not complete
I P2107 I Safety failure level 3 I
PI 794
P2100
I P2108 I Safety failure level 2 error I
Battery voltage malfunction too high or too low
Engine throttle body H-bridge malfunction
APP sensor circuit 1 high input I
P2119
P2122
1 P2127 1 APP sensor circuit 2 low input I
Engine throttle body throttle flap malfunction
Accelerator pedal position (APP) sensor circuit
1 low input
1 P2128 1 APP sensor circuit 2 high input I
1 P2176 1 Engine throttle body adaptive algorithm failed 1
P2128
P2135
APP sensor circuits I and 2 plausibility error
TP sensor circuits 1 and 2 plausibility error
I UOOOl I Control Area Network (CAN) bus-off or mute I
P2280
P2282
I UOlOl I CAN missing frame from TCU I
Air cleaner obstruction or leakage
Air leakage between throttle and inlet valves
2006.0 Fiesta 1212006 G384566en
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Page 945 of 1226

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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Page 946 of 1226

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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Page 947 of 1226

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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Page 948 of 1226

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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Page 949 of 1226

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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Page 950 of 1226

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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