ignition FORD FIESTA 2007 Repair Manual

Fuel Charging and Controls - 2.OL
303-04B-13 Duratec-HE (M14) 303-04B-13
DIAGNOSIS AND TESTING
Possible Sources Action
,
Engine ignition.
Symptom
Engine stumbling
Engine lacks power
REFER to: Engine lgnition
(303-07B, Diagnosis and
Testing).
Fuel injectors.
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.
Low fuel system pressure.
EGR valve sticking open.
Check the fuel system pres-
sure.
REFER to: Fuel System Pres-
sure Check (31
0-OOA,
General Procedures).
Fuel rail fuel pressure sensor.
REFER to: Engine Emission
Control (303-08 Engine
Emission Control
- 2.OL
Duratec-HE (M14), Diagnosis
and Testing).
Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
Engine ignition. REFER to: Engine lgnition
(303-07B, Diagnosis and
Testing).
Brakes binding.
I CHECK the braking system.
REFER to: Brake System (206-
1 00, Diagnosis and Testing).
Vehicle overloaded, or
excessive wind resistance (roof
racks, towing etc). ADVISE
the customer about
the effects of overloading the
vehicle and wind resistance on
the fuel consumption.
Air cleaner element blocked.
REFER to: Fuel System Pres-
sure Check (31
0-OOA,
General Procedures).
INSTALL a new air cleaner
element as necessary.
Low fuel system pressure.
r
Check the fuel system pres-
sure.
2006.0 Fiesta 1212006 GI 65371 en
Kinked or restricted fuel lines. INSPECT the fuel lines.
INSTALL new components as
necessary. TEST the system
for normal operation.
procarmanuals.com

Fuel Charging and Con
Duratec-HE
(N
trols - 2.OL
14)
DIAGNOSIS AND TESTING
Symptom
Engine misfire
Possible Sources Action
Engine ignition. REFER to: Engine Ignition
(303-078, Diagnosis and
Testing).
Incorrect or contaminated fuel. CHECK for signs of contamina-
tion such as strange odors from
the fuel tank.
If contaminated fuel is found,
DRAIN the complete fuel
system. FLUSH the fuel system
through with clean gasoline.
REFER to: Fuel Tank Draining
(31
0-OOA, General Proced-
u res).
INSTALL a new fuel filter.
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.
INSTALL a new fuel rail.
REFER to: Fuel Injection
Supply Manifold
(303-046,
Removal and Installation).
Low fuel system pressure. Check the fuel system pres- ( sure.
REFER to: Fuel System Pres-
sure Check (31
0-OOA,
General Procedures).
EGR valve sticking open. REFER to: Engine Emission
Control (303-08 Engine
Emission Control
- 2.OL
Duratec-HE (M14), Diagnosis
and Testing).
Engine operating temperature
too high. REFER to:
Engine Cooling
(303-03C, Diagnosis and
Testing).
ECT sensor. Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
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.
KS.
2006.0 Fiesta 1212006 GI 65371 en
Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS. )I
procarmanuals.com

Fuel Charging and Controls - 2.OL
303-04B-24 Duratec-HE (M14) 303-04B-24
REMOVAL AND INSTALLATION
Throttle Body
1. Remove the components in the order
indicated in the following
illustration(s) and
tablelsl.
Item Description Item Description
See Removal ~etaii-
1 7 I Throttle body 1 4. Turn the ignition key to the OFF position.
1
2 I I
2. To install, reverse the removal procedure.
3
4
5
6
Removal Details
8
Air cleaner intake pipe retaining clip
Air cleaner intake pipe
Item 2 Air cleaner intake pipe
See Installation Detail
Throttle body gasket
Air cleaner outlet pipe retaining clip
Air cleaner outlet pipe retaining clip
Air cleaner outlet pipe and resonator
See Removal Detail
Throttle body electrical connector
1. Detach the air cleaner intake pipe from the
air cleaner intake pipe duct.
3. 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
II and wait
for one minute to initialize the throttle body.
2006.0 Fiesta 1212006 G421320en
procarmanuals.com

303-06-3 Starting System 303-06-3
DESCRIPTION AND OPERATION
Starting System
Starting system
1 tern Description
I 1 I lgnitionlstarter switch I
1 2 1 Starter relay I
1 3 1 Electric starter motor I
1 4 1 Powertrain control module (PCM) I
1 5 1 Sensor,- crankshaft position ( CKP) I
The purpose of the starting system is to turn the
engine crankshaft at a speed which enables the
engine to start.
The engine is started as follows:
Ignitionlstarter switch in position
Ill.
The starter relay is activated by the PCM .
The solenoid is supplied with voltage.
The solenoid engages the starter motor pinion
with the flywheel ring gear.
The solenoid applies battery current to the
starter.
The starter turns the crankshaft until the engine
starts. The key can then be released and it
automatically returns to position
I I.
The system incorporates the "Smart
StartingWstrategy. This makes starting faster and
protects the starter.
If the driver fails to release the key immediately
after the engine starts, the PCM interrupts
activation of the starter relay and thus switches off
the electric starter motor.
The speed signal provided by the CKP sensor is
used for monitoring the starting procedure.
2006.0 Fiesta 1212006 GI 63308en
procarmanuals.com

303-06-4 Starting System 303-06-4
DIAGNOSIS AND TESTING
Starting System
Refer to Wiring Diagrams Section 303-06, for
schematic and connector information.
General Eaui~ment
I Worldwide Diagnostic System (WDS) I
Electrical
Electrical connector(s)
Relay
Central junction box (CJB)
Switch(es)
Battery
Starter motor
Powertrain Control Module (PCM)
lnspection and Verification
I. Verify the customer concern.
2. Visually inspect for obvious signs of electrical
damage.
Visual lnspection Chart
Symptom Chart
Electrical
Fuse(s)
Wiring harness
Symptom
The engine does not crank/the
relay does click 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
The engine does not crank/the
relay does not click symptom
and refer to the Symptom Chart.
Possible Sources Action
Battery. REFER to: Charging System
(414-00 Charging System
-
General Information,
Diagnosis and Testing).
1
Starter motor. CARRY OUT the starter motor
I Component Test using WDS.
Relay. CARRY OUT the relay
Component Test. REFER to
the wiring diagrams.
I Circuit(s). I GO to Pinpoint Test A. I
I PCM. I REFER to WDS. I
Battery. REFER to: Charging System
(414-00 Charging System -
General Information,
Diagnosis and Testing).
Fuse. INSTALL a new fuse as
necessary. If the fuse fails
again check for short to ground.
Passive anti-theft system
(PATS). REFER to: Anti-Theft - Passive
(41 9-01 Anti-Theft
- Passive,
Diagnosis and Testing).
I
Starter motor. CARRY OUT the starter motor(
I Component Test using WDS.
I Ignition switch. I GO to Pinpoint Test B. I
2006.0 Fiesta la2006 GI 51 301 en
procarmanuals.com

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
procarmanuals.com

303-06-7 Starting System 303-06-7
DIAGNOSIS AND TESTING
TEST CONDITIONS DETAILSIRESU LTSIACTIONS
I A3: CHECK CIRCUIT 29-BB17 (OGIBK) FOR OPEN I
I Ignition switch in position 0. I
I rn Disconnect Starter Relay C423. I
Measure the voltage between starter relay C423
pin 3, circuit
29-8817 (OGIBK), harness side
Is the voltage greater than 10 volts?
+ Yes
REPAIR circuit 50-BB10 (GYIBK). TEST the
system for normal operation.
+ No
REPAIR circuit 29-BB17 (OGIBK). TEST the
system for normal operation.
I A4: CHECK THE STARTER MOTOR GROUND CIRCUIT FOR OPEN I - - --
Measure the resistance between the starter
motor casing and battery
1 ground terminal.
Is the resistance less than 0.5 ohms?
+ Yes
INSTALL a new starter motor.
REFER to: Starter Motor
- 1.3L Duratec-8V
(Rocam)/l.25L Duratec-1 6V (Sigma)/l.4L
Duratec-1 6V (Sigma)ll .6L Duratec-1 6V
(Sigma) (303-06 Starting System, Removal
and Installation)
I Starter Motor - 1.4L Duratorq-TDCi (DV)
Diesel (303-06 Starting System, Removal
and
Installation).
INSPECT the starter motor gear for damage.
INSTALL a new starter motor as necessary.
+ No
CLEAN and TIGHTEN all battery and engine
ground cable connections. TEST the system
for normal operation.
PINPOINT TEST B : THE ENGINE DOES NOT CRANKIRELAY DOES NOT CLICK
TEST CONDITIONS
DETAILSIRESU LTSIACTIONS
B1: CHECK THE SWITCHED POWER TO THE STARTER RELAY
Disconnect Starter Relay C423.
rn lgnition switch in position Ill.
2006.0 Fiesta 1212006 GI 51 301 en
procarmanuals.com

303-06-8 Starting System 303-06-8
DIAGNOSIS AND TESTING
1 82: CHECK CIRCUIT 50-BB16 (GYIBK) FOR OPEN I
TEST CONDITIONS DETAILSIRESULTSIACTIONS
lgnition switch in position 0.
0 - -
VU E0018265
rn Disconnect lgnition Switch C329.
Measure the voltage between the starter motor
relay C423 pin
1, harness side and ground.
Is the voltage greater than
10 volts?
-+ Yes
GO to B3.
-+ No
GO to B2.
Measure the resistance between the ignition
switch C329 pin
7, circuit 50-BB16 (GYIBK),
harness side and the starter relay C423 pin
1,
circuit 50-BB16 (GYIBK), harness side.
Is the resistance less than 5 ohms?
-+ Yes
INSTALL a new ignition switch.
REFER to: lgnition Switch (21 1-05 Steering
Column Switches, Removal and Installation).
TEST the system for normal operation.
-+ No
REPAIR the circuit. TEST the system for
normal operation.
I B3: CHECK CIRCUIT 91s-BB16 (BKIRD) FOR OPEN I
I Ignition switch in position II. I
rn Measure the resistance between the starter
relay C423 pin 2, circuit 91 S-BB16 (BWRD),
harness side and ground.
Is the resistance less than 5 ohms?
-+ Yes
INSTALL a new starter relay. TEST the
system for normal operation.
-+ No
All except vehicles with diesel engine, GO to
B4.
Vehicles with diesel engine, GO to B5.
2006.0 Fiesta 1212006 GI 51 301 en
procarmanuals.com

303-06-1 0 Starting System 303-06-1 0
DIAGNOSIS AND TESTING
TEST CONDITIONS DETAILSIRESULTSIACTIONS
Measure the voltage between the starter motor
terminal 30, component side and the battery
positive
terminal.
Is the voltage less than 0.5 volts?
+ Yes
GO to C2.
+ No
CLEAN and TIGHTEN all battery positive
cable connections. TEST the system for
normal operation. If the concern persists,
INSTALL a new battery to starter motor
solenoid cable.
REFER to: Battery to Starter Motor Solenoid
Cable - 1.3L Duratec-8V (Rocam) (41 4-01
Battery, Mounting and
Cables, Removal and
Installation)
1 Battery to Starter Motor Solenoid Cable -
1.25L Duratec-1 6V (Sigma)/l.4L Duratec-
16V (Sigma)/l.6L Duratec-1 6V (Sigma)
(414-01 Battery, Mounting and
Cables,
Removal and Installation).
Test the system for normal operation. - - ---
I C2: CHECK FOR GROUND CONNECTION
-
I f
Ignition switch in position Ill.
Is the voltage less than 0.5 volts?
-, Yes
CHECK the battery.
REFER to: Charging System (414-00 Char-
ging System
- General Information,
Diagnosis and Testing).
TEST the system for
normal operation.
+ No
CLEAN and TIGHTEN all battery ground cable
connections, starter motor mounting and body
to ground straps. TEST the system for
normal
operation. If the concern persists, INSTALL a
new battery ground
cable. Testlhe system for
normal operation.
2006.0 Fiesta 1212006 GI 51 301 en
procarmanuals.com

303-06-1 I Starting System 303-06-1 1
REMOVAL AND INSTALLATION
Starter Motor - 1.3L Duratec-8V (Rocam)/l.25L Duratec-I 6V
I \, (Sigma)/l.4L Duratec-1 6V (Sigma)/l .6L Duratec-1 6V
(Sigma)(26 204 0)
Removal
I. Disconnect the battery ground cable. For
additional information, refer to
Section
414-01 [Battery, Mounting and
Cables].
2. Raise and support the vehicle. For additional
information, refer to Section
100-02 [Jacking
and Lifting].
3. Disconnect the ignition switch to starter
motor solenoid and battery to starter motor
solenoid cables (oil filter shown removed for
clarity).
4. Remove the starter motor retaining bolts and
remove the starter motor.
, Installation
I. To install, reverse the removal procedure.
2006.0 Fiesta 1212006 G210046en
procarmanuals.com