2007 FORD FIESTA stop start

303-00-24 Engine System - General Information 303-00-24
DIAGNOSIS AND TESTING
N0TE:Twist the spark plug connectors slightly
before disconnecting them. Pull on the connector
and not on the cable.
5. Using the special tool, remove the spark plug
connectors.
6. Using the special tool, remove the spark plugs.
N0TE:Operate the starter motor with wide open
throttle until the pointer on the measuring device stops rising.
7. Carry out the measurement in accordance with
the instructions supplied with the measuring
device on every cylinder using compression
pressure recorder 623.000.1 01 with the suitable
adapter.
8. Using the special tool, install the spark plugs.
9. Install the spark plug connectors. k
1Q Connect the El coil electrical connector to the
El coil.
TIE
2006.0 Fiesta 1212006 GI 52554en
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303-03B-8 Engine Cooling - 2.OL Duratec-HE (M14) 303-038-8
DESCRIPTION AND OPERATION
coolant means that it can be re-used after changing If the engine temperature still continues to rise,
an aluminium cooling system component, although
stage
3 of the strategy will commence. This will
the concentration should always be checked and
result in the engine being totally disabled before
(
maintained within specification.
major engine damage or seizure occurs. The MIL .
This coolant should be changed after a period of will begin-to
flash, indicating to the driver that the
10 years or 150 000 miles, whichever occurs first. engine will
be switched off after 30 seconds. This
Refill the cooling system with coolant which meets allows the driver time to choose a suitable parking
the correct specification and is compatible with the place.
existing coolant.
Fail-Safe Cooling
The vehicle has a strategy built into the powertrain
control module (PCM) that will control the engine
if the engine starts to overheat.
If the engine starts to overheat, stage
1 of the
strategy will commence. The ECT sensor transmits
a signal to the PCM which then moves the
temperature gauge pointer into the red zone.
If the engine is not switched off and the
temperature continues to rise, the malfunction
indicator lamp (MIL) is illuminated. This indicates
to the driver that the engine is approaching critical
limits and should stop. At this point DTC
PI285 is
set in the PCM which can be retrieved using WDS.
If the MIL and temperature gauge are ignored by
the driver, stage 2 of the strategy will commence.
The PCM will start to control the engine by cutting
out two cylinders and restricting the RPM to below
3000 RPM. The MIL will remain illuminated. This
indicates that long term engine damage may occur
and vehicle emissions will be affected. At this point
DTC
PI299 is set in the PCM which can be
retrieved using WDS.
Air is drawn into the deactivated cylinders which
helps to control the temperature of the engine
internal components. The deactivated cylinders
are alternated to allow even cooling of all the
cylinders.
N0TE:lf the driver is using a high percentage of
throttle travel (for example, an overtaking
maneuver) when the PCM starts engine
deactivation (stage 2), the deactivation will be
delayed for 10 seconds.
N0TE:After 2-cylinder operation has begun, the
engine will not revert to 4-cylinder operation, even
if the temperature should fall, until the ignition is
switched off and then on again.
N0TE:The MIL can only be extinguished by using
WDS after the fault has been rectified and the DTC
cleared.
2006.0 Fiesta 1212006 G421219en
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303-03B-15 Engine Cooling - 2.OL Duratec-HE (M14) 303-03B-15
DIAGNOSIS AND TESTING
A CAUTI0N:lf the ECT sensor output reaches
the
120°C default line under normal cooling
system pressure, internal damage may be
caused to the engine and a diagnostic
trouble code (DTC) will be set in the PCM.
The test should be stopped and the cause
located and corrected. If the cooling
system does not pressurize, the coolant
will boil at
1 OO°C which may also damage
the engine. CARRY
OUT the Coolant
Expansion Tank Cap Pressure Test
Component Test in this section.
If the WDS only allows the ECT sensor to be
displayed in volts, refer to the following table for
corresponding Celsius values:
The CHT sensor output is useful to examine the
cylinder head temperature rise during the warm-up
cycle and later during the normal light throttle cruise
test. This sensor output may vary between vehicles
with manual transmission and vehicles with automatic transmission and should be used for
reference only.
Volts
1.33
1.02
0.78
0.60
0.46
0.35 0.27
The LOAD display is used for reference as it is
necessary to maintain a stable load line during the
test. It is necessary to carry out the test under
normal light throttle cruise driving conditions and
average loads, typically 40% to 70% of the load
value.
OCelsius
60
70
80
90
100
110
120 '
The VSS output is used for reference but can help
to identify misfires and sensors which fail during
the warm-up cycle.
The RPM display indicates the engine speed and
can be compared with the DSRPM.
The DSRPM is the desired or calculated idle speed
which the PCM commands the engine to reach. If
the thermostat opens too early (before the correct
opening temperature has been reached), the
engine will not reach this value. When
using the WDS in data logger mode, the
signals recorded should remain within the
DEFAULT values set by the WDS.
3m AWARNING:M~~~ sure that the WDS is
placed in the vehicle so that it does not
interfere with the safe operation of the
vehicle. Do not place the WDS in the
deployment path of any air bag. Failure to
follow these instructions may result in personal injury.
N0TE:The road test is best carried out with the
aid of another technician in the vehicle to enable
the vehicle to be driven safely while the sensor
outputs are monitored within datalogger. If there
is only one technician available, the WDS can be
set up (using the
recordlcapture mode camera
icon) before leaving the workshop to record a 16
km (1 0 mile) test.
N0TE:The results from the test are more
conclusive if the engine is cold when the test is
started.
Carry out a road test.
REFER to:
RoadIRoller Testing (1 00-00 General
Information, Description and Operation).
4. Drive the vehicle at a constant throttle opening
and set speed until the ECT value settles into
a shallow rise and fall signal, close to a straight
line. This indicates that the thermostat is
functioning correctly.
N0TE:Some thermostats indicate the
temperature(s) in Celsius and Fahrenheit.
The graphic below shows the location and an
example of the opening temperature
(88OC) and
fully open temperature (1
02OC) of a thermostat.
The graphic below shows an alternative method used to show the opening temperature
(88OC) and
fully open temperature
(112OC) of a thermostat.
2006.0 Fiesta 1212006 G426582en
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Fuel Charging and Controls - 2.OL
303-04B-1 I Duratec-HE (M14) 303-04B-11
DIAGNOSIS AND TESTING
Symptom Possible Sources
Action
Fuel injector(s). INSPECT the fuel injectors.
CLEAN the fuel injectors or
INSTALL a new set of injectors
as required only after the
checks have been carried out.
Fuel rail fuel pressure sensor. Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
Catalytic converter blocked. REMOVE and visually
INSPECT the catalytic
converter as necessary.
REFER to: Catalytic Converter
- 1.8L Duratec-HE (M14)/2.OL
Duratec-HE (M14) (309-00,
Removal and Installation).
Low cylinder compression. TEST the engine cylinder
compression.
Engine starts but immediately
stops Air cleaner element blocked. INSTALL
a new air cleaner
element.
CKP sensor.
Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
CMP sensor. Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
PCM. Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
Low fuel system pressure.
Check the fuel system pres-
sure.
REFER to: Fuel System Pres-
sure Check (31
0-OOA,
General Procedures).
Fuel system
restriction
I
--
INSPECT the fuel system.
INSTALL new components as
necessary. TEST the system
for normal operation.
I Fuel filter blocked. I INSTALL a new fuel filter. I
Poor idling Air cleaner
element blocked. INSTALL a new air cleaner
element.
2006.0 Fiesta 1212006 GI 65371 en
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303-06-6 Starting System 303-06-6
DIAGNOSIS AND TESTING
Symptom Possible Sources Action
Pinpoint Tests
The starter stops cranking the
engine before the engine starts
N0TE:Use a digital multimeter for all electrical
measurements.
PINPOINT TEST A
: THE ENGINE DOES NOT CRANKITHE REWY DOES CLICK
PCM.
TEST CONDITIONS
DETAILSIRESU LTSIACTIONS
I A1 : CHECK VOLTAGE TO STARTER SOLENOID I
I I Ignition switch in position Ill. I
Measure the voltage between starter motor
terminal 50, harness side and ground.
Is the voltage greater than I0 volts?
+ Yes
GO to
A2.
+ No
GO to A3.
1~2: CHECK THE VOLTAGE DROP I
Measure the voltage between starter motor
terminal 30, component side and the battery
positive
terminal.
Is the voltage less than 0.5 volts?
+ Yes
GO to A4.
+ No
CLEAN and TIGHTEN
all battery positive
cable connections. TEST the system for
normal operation. If the concern persists,
INSTALL a new battery starter motor
solenoic
cable.
REFER to: Battery to Starter Motor Solenoid
Cable - 1.3L Duratec-8V (Rocam) (41 4-0 1
Battery, Mounting and
Cables, Removal and
Installation)
I Battery to Starter Motor Solenoid Cable -
1.25L Duratec-I 6V (Sigma)ll.4L Duratec-
1
6V (Sigma)ll .6L Duratec-1 6V (Sigma)
(414-01 Battery, Mounting and
Cables,
Removal and Installation).
TEST the system for normal operation.
2006.0 Fiesta 1212006 GI 51 301 en
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303-1 4-6 Electronic Engine Controls 303-1 4-6
DESCRIPTION
AND OPERATION
Item Descri~tion
1 5 1 Crankshaft Position (CKP) sensor 1
Throttle Control Unit (TCU)
1 6 ( Camshaft Position (CMP) sensor I Components
1 7 1 Heated Oxygen Sensor (H02S) I
1 8 1 Power Steering Pressure (PSP) sensor I
1 10 1 Brake Pedal Position (BPP) switch I
9 Vehicle Speed Sensor (VSS)
(only on
vehicles without Anti-lock Braking System
(ABS))
1 12 1 Clutch Pedal Position (CPP) switch I
11
1 13 1 Generator I
Accelerator Pedal Position (APP) sensor
1 14 1 Current supply relay I
1 15 1 Ignition key I -
16
17
1 20 1 Inertia fuel shut-off switch I
Battery
Powertrain Control Module (PCM)
-
18
19
1 21 1 Fuel Pump Driver Module (FPDM) I
Data Link Connector (DLC)
Fuel Pump (FP) relay
1 22 1 Fuel injectors I
23 Evaporative emissions (EVAP) solenoid
1 lvalve
1 24 1 Idle Air Control (IAC) valve 1
1 25 1 Throttle Control Unit (TCU) I
26 Air Conditioning (AIC) compressor clutch
1 I 1 blower switch
1 27 1 Injector Driver
Module (IDM) I
1 28 1 Start inhibit relay I
1 29 1 Instrument cluster I
Item Descri~tion
I I ITP sensor I
1 2 1 Electric motor I
The electronically controlled throttle control unit
(TCU) consists of the following components:
Housing
Throttle flap
Throttle flap spindle
Gear set
Electric motor with pinion
TP sensor
Stop screw
Throttle flap return spring
2006.0 Fiesta 1212006 G204204en
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Automatic Transmission/Transaxle -
Vehicles With: 4Speed Automatic
307-01 -35 Transmission (AW81-40) 307-01 -35
DESCRIPTION AND OPERATION
Engine speed
1 The engine speed is detected by the crankshaft
position (CKP) sensor and passed on to the PCM.
The engine speed is transmitted from the PCM via
the CAN
databus to the transmission control unit.
The transmission control unit uses this signal for:
Torque reduction during gearshifts,
Pressure control during gearshifts.
Engine load
The PCM determines a load signal which is
transmitted via the CAN
databus to the
transmission control unit.
The transmission control unit uses this signal for:
Torque reduction during gearshifts,
Pressure control during gearshifts,
Shift timing adaptation during upshifts,
Shift timing adaptation during shifts from 3rd to
4th gear,
Hill climb mode,
( ' Hill descent mode. ' ,
Torque reduction request signal
Before performing a gearshift, the transmission
control unit sends a signal via the CAN
databus to
the PCM requesting a torque reduction.
The PCM then reduces the engine torque, ensuring
that the gearshift is as smooth and judder-free as
possible.
Brake signal
The PCM receives a signal from the stoplamp
switch when the brake pedal is depressed.
This signal is transmitted via the CAN
databus to
the transmission control unit.
The transmission control unit uses this signal for:
Gearshift control,
Engagement of the TCC
Accelerator pedal position
The PCM receives the current accelerator pedal
position signal from the Accelerator Pedal Position
(APP) sensor.
This signal is transmitted via the CAN
databus to
the transmission control unit.
The transmission control unit uses this signal for:
Controlling the main line pressure,
Gearshift control,
Engagement of the TCC,
Shift timing adaptation during upshifts,
Shift timing adaptation during shifts from 3rd to
4th gear,
Shift timing adaptation during shifts from 4th to
3rd gear,
Avoidance of gearshift judder during
engagement of a transmission range,
Torque reduction when pulling away.
Coolant temperature
The coolant temperature is detected by the Engine
Coolant Temperature (ECT) sensor and passed
on to the PCM.
This signal is transmitted via the CAN
databus to
the transmission control unit.
The transmission control unit uses this signal for:
Cold start mode,
Engagement of the TCC
Selector lever position
The transmission control unit transmits the selector
lever position to the instrument cluster.
The instrument cluster uses the signal to send a
request for a warning tone to the GEM when the
selector lever is not in position "P" and the driver's
door is opened.
-
2006.0 Fiesta 1212006 G380530en
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Automatic Transmission/Transaxle -
Vehicles With: 4-Speed Automatic
307-01 49 Transmission (AW81-40) 307-01 -49
DIAGNOSIS AND TESTING

Test Results
Higher than specification in 'Dl (DRIVE)
Higher than specification in
'R' (REVERSE)
Lower than specification in 'D' (DRIVE)
Lower than specification in
'R' (REVERSE)
Possible Source
Pressure control solenoid inoperative.
Pressure regulator valve sticking.
Forward clutch failure (slipping).
One-way clutch No.2 failure.
Pressure control solenoid inoperative.
Pressure regulator valve sticking.
Reverse clutch failure (slipping).
First and reverse brake failure (slipping).
Drive hydraulic circuit failure.
Forward clutch failure.
Pressure control solenoid inoperative.
Pressure regulator valve sticking.
Worn oil pump.
Oil strainer blocked.
Fluid leak from each clutch hydraulic circuit.
( Time Lag Test 1. Using a suitable stop watch, measure the time
lag three times and calculate the average time.
Time lag is the time between moving the selector Record the
time lag and refer to the time lag
lever from
IN' (NEUTRAL) to ID' (DRIVE) or IN' chart.
(NEUTRAL) to 'R' (REVERSE). With the parking 2. If the time lag is not within specification, refer
brake applied the vehicle must not move if the
to the time lag diagnosis chart.
selector lever is moved from 'N' (NEUTRAL) to
ID'
(DRIVE) or 'N' (NEUTRAL) to 'R' (REVERSE). Time Lag Chart
Drive is engaged when the vehicle starts to rise.
A WARN1NG:Apply the parking brake firmly IN' (NEUTRAL) to ID' while carrying out each test. 1 (DRIVE)
(NEUTRAL) and run the engine at 1000 rpm
for approximately
1 minute to allow the
torque converter to cool.
less than 1.0 seconds
CAUTI0N:After testing each of the
following ranges
'D' (DRIVE) and 'R'
Range
I Lower than specification in IN' (NEUTRAL) to 'Dl I Pressure control solenoid inoperative.
Ti me
(REVERSE), move the selector lever to 'N'
'N' (NEUTRAL) to 'R'
(REVERSE)
Time Lag Diagnosis Chart
(DRIVE) less
than 1.2 seconds
Test Results
Pressure regulator valve sticking.
Forward clutch failure (slipping).
Possible Source
I Timing solenoid failure.
I I Drive hydraulic circuit failure. I
2006.0 Fiesta IZIZOO~ G371498en
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