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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
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Page 872 of 1226

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
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303-06-9 Starting System 303-06-9 -- -
DIAGNOSIS AND TESTING
TEST CONDITIONS DETAILSIRESU LTSIACTIONS
PINPOINT TEST C : THE ENGINE CRANKS SLOWLY
TEST CONDITIONS
DETAILSIRESULTSIACTIONS
B4: CHECK CIRCUIT 91s-BB16 (BWRD) FOR OPEN
C1: CHECK FOR VOLTAGE DROP
rn lgnition switch in position Ill.
VU E0029942
2006.0 Fiesta 1212006 GI 51 301 en
lgnition switch in position 0.
Disconnect PCM C343.
rn Measure the resistance between the starter
relay C423 pin 2, circuit 91 S-BB16 (BWRD),
harness side and PCM C343 pin
F30,91 S-BBI 6
(BWRD), harness side.
Is the resistance less than 5 ohms?
+ Yes
CHECK the PATS system. REFER to WDS.
-, No
REPAIR the circuit. TEST the system for
normal operation.
B5: CHECK CIRCUIT 91s-BB16 (BWRD) FOR OPEN
Inl
I I It I
-0 @
-
0
lY2't
VUE0029849
lgnition switch in position 0.
Disconnect PCM C372.
rn Measure the resistance between the starter
relay C423 pin 2, circuit 91 S-BB16 (B WRD),
harness side and the PCM C372 pin
C3,91S-
BB16 (BWRD), harness side.
Is the resistance less than 5 ohms?
+ Yes
CHECK the PATS system. REFER to WDS.
-, No
Repair the circuit. Test the system for normal
operation.
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Engine Emission Control - 1.3L Duratec-8V
(Rocam)ll.25L Duratec-1 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)ll .6L Duratec-I 6V (Sigma)
DIAGNOSIS AND TESTING
Engine Emission Control
lnspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical
damage.
3. If an obvious cause for an observed or reported
Visual lnspection Chart
I 1 concern is found, correct the cause (if possible)
I Mechanical I before proceeding to the next step.
. -
Symptom Chart
Positive crankcase ventilation (PCV) valve
PCV separator
Symptom Chart
Symptom
Excessive crankcase pressure
4. If the cause is not visually evident, verify the
symptom and refer to the Symptom Chart.
Oil in the air intake system Possible
Sources
Blocked PCV valve.
Blocked PCV separator.
Blocked PCV hose.
Restriction in PCV separator.
PCV valve permanently open. Action
CLEAN
or INSTALL new PCV
components as necessary.
TEST the system for normal
operation. If the concern
persists, REFER to
Section 303-00 [Engine
System
- General Information].
CLEAN or INSTALL a new
PCV separator. TEST the
system for normal operation.
-
INSTALL a new PCV valve.
TEST the system for normal
operation.
2006.0 Fiesta 1212006 Gl48220en
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Page 893 of 1226
Engine Emission Control - 1.3L Duratec-8V
(Rocam)llI25L Duratec-1 6V (Sigma)llm4L
303-O8A-7 Duratec-1 6V (Sigma)ll .6L Duratec-1 6V (Sigma) 303-0844-7
REMOVAL AND INSTALLATION
Crankcase Vent Oil Separator
i
Removal
1. Remove the air cleaner. For additional
information, refer to Section
303-1 2 [Intake
Air Distribution and Filtering].
2. Remove the intake manifold. For additional
information, refer to Section 303-01A
[Engine
-- 1.25L Duratec-1 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)llm6L Duratec-1 6V
(Sigma)] I 303-01 B [Engine -- 1.4L
Duratorq-TDCi (DV) Diesel] I 303-01 C [Engine
-- 1.3L Duratec-8V (Rocam)] I 303-01 D
[Engine
-- 2.OL Duratec-HE (M14)I 1 303-01 E
[Engine
-- 1.6L Duratorq-TDCi (DV) Diesel].
3. Remove the crankcase vent oil separater.
Discard the gasket.
Installation
I. N0TE:lnstall a new crankcase vent oil
separator gasket.
To install, reverse the removal procedure.
2006.0 Fiesta 1212006 G210048en
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Engine Emission Control - 2.OL Duratec-HE
303-08B-3
(MI41 303-08B-3
DESCRIPTION AND OPERATION
Engine Emission Control
1 2 1 EGRvalve gasket I oxide exhaust emissions.
Item Description introduced to the incoming charge in the intake
1
The exhaust gas recirculation (EGR) system allows
intake manifold by the EGR valve.
Exhaust gas recirculation (EGR) valve
--
3
a measured quantity of exhaust gas to be directed The EGR valve is controlled by an input from the back
to the intake manifold. The exhaust gas is powertrain control module
manifold, where it dilutes the air fuel mixture and
lowers the peak gas temperature, reducing nitrogen
2006.0 Fiesta 1212006 G37563en
the cylinder head from the exhaust manifold to the
-
EGR outlet The exhaust gas
is drawn through a passage within
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Page 898 of 1226
Engine Emission Control - 2.OL Duratec-HE
303-08B-4
(MI41 303-08B-4
DESCRIPTION AND OPERATION
Item Description two hoses. One PCV hose connects the PCV valve
to the intake manifold, the other PCV hose
2
3
The positive crankcase ventilation (PCV) system
consists of a valve mounted in the crankcase vent
oil separator (attached to the cylinder block) and
connects the valve cover to the air cleaner. 1
4
2006.0 Fiesta 1212006 G37563en
Positive crankcase ventilation (PCV) valve
PCV hose
Crankcase vent oil
se~arator
Under idle and part throttle conditions, the
crankcase vapor flows through the intake manifold
Crankcase vent oil separator retaining
bolt into the combustion chambers where the vapor is
burnt during combustion.
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Engine Emission Control - 2.OL Duratec-HE
303-08B-5
(MI41 303-08B-5
DESCRIPTION AND OPERATION
[ E57308
i, ' Item Description I
I 1 ( PCV hose to valve cover connector I
Under full throttle conditions, the crankcase vapor
flows from the valve cover into the air cleaner
through the PCV hose.
-
2
3
2006.0 Fiesta 1212006 G37563en
PCV hose
PCV hose to air cleaner connector
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