2007 SUZUKI SWIFT Fuel diagram

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-107
DTC P0327 / P0328: Knock Sensor 1 Circuit Low / HighS7RS0B1104040
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC by using scan tool.
3) Start engine and run it for 10 sec.
4) Check DTC by using scan tool. 11
Engine mechanical system check
1) Check engine mechanical parts or system which can
cause engine rough idle or poor performance.
• Engine compression (Refer to “Compression Check in Section 1D”.)
• Valve lash (Refer to “Valve Lash (Clearance) Inspection in Section 1D”.)
• Valve timing (Refer to “Timing Chain and Chain Tensioner Removal and Installation in Section 1D”.)
Are they in good condition? Check wire harness and
connection of ECM
ground, ignition system
and fuel injector for
intermittent open and
short.
Repair or replace
defective part.
Step
Action YesNo
E23 C37
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
1 2
REDC37-56
5 V
I4RS0A110031-01
1. Knock sensor
2. ECM
DTC detecting condition Trouble area
DTC P0327:
Voltage of knock sensor is less than 1.23 V for 0.5 seconds
continuously.
(1 driving cycle detection logic)
DTC P0328:
Voltage of knock sensor is 3.91 V or more for 0.5 seconds
continuously
(1 driving cycle detection logic) • Knock sensor circuit (open or short)
• Knock sensor
•ECM

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-155
DTC P2103: Throttle Actuator Control Motor Circuit HighS7RS0B1104069
Wiring Diagram
Refer to “DTC P2101: Throttle Actuator Control Motor Circuit Range / Performance”.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure 1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Ignition switch turned OFF for 20 sec. or more.
4) Turn ON ignition switch and check DTC. 5
Throttle actuator cont rol relay circuit check
1) Disconnect connectors from ECM with ignition switch turned OFF.
2) Measure resistance at the following connector terminals. • Between “BLU/ORN” wire termin al of throttle actuator
control relay connector and “E23-45” terminal of ECM
connector
• Between “RED/YEL” wire terminal of throttle actuator control relay connector and “E23-32” terminal of ECM
connector
Is each resistance below 5
Ω? Go to Step 6. “BLU/ORN” wire and/or
“RED/YEL” wire is open
or high resistance.
6 Throttle actuator control relay check
1) Check throttle actuator control relay referring to “Main Relay, Fuel Pump Relay an d Starting Motor Control
Relay Inspection in Section 1C”.
Is it in good condition? Substitute a known-
good ECM and recheck.
Replace throttle
actuator control relay.
Step
Action YesNo
DTC detecting condition Trouble area
Power supply voltage of throttle actuator control circuit is
more than 5 V for specified time even if throttle actuator
control relay is turned off.
(1 driving detection logic.) • Throttle actuator control relay circuit
• Throttle actuator control relay
•ECM

Downloaded from www.Manualslib.com manuals search engine 1A-194 Engine General Information and Diagnosis:
ECM Power and Ground Circuit CheckS7RS0B1104080
Wiring DiagramC37-3 to E23-1/16 EGR valve
(stepping motor No.2 coil)
20 – 31 Ω —
C37-18 to E23-1/16 EGR valv e (stepping motor No.4 coil)
C37-19 to E23-1/16 EGR valv e (stepping motor No.3 coil)
C37-46 to E23-29 Heater of HO2S-1 2 – 11 Ω—
C37-1 to E23-1/16 No.1 fuel injector 10.8 – 18.2 Ω —
E23-47 to E23-1/16 A/C compressor relay 160 – 240 Ω —
C37-60 to C37-59 Oil control valve 6 – 15 Ω —
E23-45 to E23-1/16 Throttle actuator control relay 160 – 240 Ω —
Terminals
CircuitStandard resistance Condition
E23 C37
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
BLK/RED
BLK/REDBLK/RED
BLK/YELBLK/YEL
BLK/YEL
GRN
BRN/WHT
12V
5VE23-1
E23-60
E23-16
WHT 2
4
11
6
3
12
13 14
7
1
16
17
89
15
10
5
WHT/REDE23-2
C37-58
C37-15C37-30
BLK/ORN
BLKBLKE23-31BLK
WHT
GRY/REDRED/BLK
ORN
C37-14C37-53
C37-55E23-54
REDE23-55
GRNBRN
BLU
REDYELWHT
E23-35E23-37E23-52
E23-51
E23-34E23-36
E23-50
LT GRN/REDLT GRN/BLKC37-45C37-44
C37-43
C37-54C37-40C37-42C37-41
RED
GRN
WHTBLK
ORN
BLK/WHTE23-29
I6RS0C110039-01
1. Main fuse box 7. Individual circuit fuse box No.1 13. A/C refrigerant pressure sensor (if equipped with A/C)
2. Ignition switch 8. “IG ACC” fuse14. APP sensor (main)
3. Main relay 9. “FI” fuse15. APP sensor (sub)
4. BCM (included in junction block assembly) 10. “RADIO” fuse 16. TP sensor (main)
5. “IG COIL” fuse 11. DLC17. TP sensor (sub)
6. ECM 12. MAP sensor

Downloaded from www.Manualslib.com manuals search engine 1A-198 Engine General Information and Diagnosis:
Fuel Injector Circuit CheckS7RS0B1104081
Wiring Diagram
BLK/WHTBLK/RED
BLK/RED
WHTBLK/YELBLK/YEL
BLK/YEL
GRN
BRN/WHT
12V 5V
9
2
8 3E23-29
E23-1
E23-60
10
11
E23
C37
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
C37-1
C37-2
C37-16
C37-17
BLK/REDBLK/RED
BLU/YEL
BLU/RED
BLU/ORN
BLU/WHT
E23-16
4
5
6
71
C37-58
C37-15 C37-30 E23-31
BLK/ORN
BLKBLKBLK
I6RS0C110040-01
1. Main fuse box 4. No.1 injector 7. No.4 injector10. “FI” fuse
2. Main relay 5. No.2 injector 8. “IG COIL” fuse 11. “IG ACC” fuse
3. ECM 6. No.3 injector 9. Ignition switch

Downloaded from www.Manualslib.com manuals search engine 1A-200 Engine General Information and Diagnosis:
Fuel Pump and Its Circuit CheckS7RS0B1104082
Wiring Diagram
E23-1
E23-60
E23-15
BRN/WHT
BLK/REDBLK/YEL
BLK/YEL
BLK/RED
E23-29BLK/WHT
GRN/WHT
BLK/WHT
BLK/WHT
PNK
BLK
WHT
GRN
C37-58
C37-15
C37-30
BLK/ORN
BLK
BLKE23-31BLK
78
9 6
4 3
2 5
E23
C37
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 48 32 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
BLK/YEL
1
E23-16BLK/RED
BLK/RED
I6RS0C110041-01
1. Main fuse box 4. Fuel pump relay 7. Ignition switch
2. Main relay 5. Fuel pump 8. “FI” fuse
3. ECM 6. “IG COIL” fuse 9. “IG ACC” fuse

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-203
Fuel Pressure CheckS7RS0B1104083
System Diagram
Special tool
(A): 09912–58442
(B): 09912–58432
(C): 09912–58490
I3RM0A110081-01
1. Injector2. Delivery pipe 3. Fuel filter and fuel pump

Downloaded from www.Manualslib.com manuals search engine 1G-1 Fuel System:
Engine
Fuel System
Precautions
Precautions on Fuel System ServiceS7RS0B1700001
WARNING!
Before attempting service of any type on fuel system, the following should be always observed in
order to reduce the risk of fire and personal injury.
• Disconnect negative cable at battery.
• Do not smoke, and place no smoking signs near work area.
• Be sure to have CO
2 fire extinguisher handy.
• Be sure to perform work in a well-ventilated area and away from any open flames (such as gas hot heater).
• Wear safety glasses.
• To relieve fuel vapor pressure in fuel tank, remove fuel filler cap from fuel filler neck and then
reinstall it.
• As fuel feed line is still under high fuel pr essure even after stopping engine, loosening or
disconnecting fuel feed line directly may cause dangerous spout of fuel. Before loosening or
disconnecting fuel feed line, make sure to relieve fuel pressure referring to “Fuel Pressure Relief
Procedure”.
• A small amount of fuel may be released when the fuel line is disconnected. In order to reduce the risk of personal injury, cover a shop cloth to the fitting to be disconnected. Be sure to put that cloth
in an approved container after disconnecting.
• Never run engine with fuel pump relay disconnected when engine and exhaust system are hot.
• Note that fuel hose connection varies with each type of pipe. Be sure to connect and clamp each hose correctly referring to “Fuel Hose Disconnecting and Reconnecting”.
After connecting, make sure that it has no twist or kink.
• When installing inje ctor or fuel feed pipe, lubr icate its O-ring with gasoline.

General Description
Fuel System DescriptionS7RS0B1701001
CAUTION!
This engine requires the unleaded fuel only.
The leaded and/or low lead fuel can result in
engine damage and reduce the effectiveness
of the emission control system.

The main components of the fuel system are fuel tank,
fuel pump assembly (with fuel filter, fuel level gauge, fuel
pressure regulator, fuel feed line and fuel vapor line.
For the details of fuel flow, refer to “Fuel Delivery System
Diagram”.
Fuel Delivery System DescriptionS7RS0B1701002
The fuel delivery system consists of the fuel tank, fuel
pump assembly (with built-in f uel filter and fuel pressure
regulator), delivery pipe, injectors and fuel feed line.
The fuel in the fuel tank is pumped up by the fuel pump,
sent into delivery pipe and injected by the injectors.
As the fuel pump assembly is equipped with built-in fuel
filter and fuel pressure regulator, the fuel is filtered and
its pressure is regulated before being sent to the feed
pipe.
The excess fuel at fuel pressure regulation process is
returned back into the fuel tank.
Also, fuel vapor generated in fuel tank is led through the
fuel vapor line into the EVAP canister.
For system diagram, refer to “Fuel Delivery System
Diagram”.

Downloaded from www.Manualslib.com manuals search engine Fuel System: 1G-2
Fuel Pump DescriptionS7RS0B1701003
The fuel pump (1) is an in-tank type electric pump.
Incorporated in the pump assembly are;
a fuel filter (2) and a fuel pressure regulator (3) are
included and a fuel level gauge (4) is attached.
Addition of the fuel pressure regulator to the fuel pump
makes it possible to mainta in the fuel pressure at
constant level and ECM controls compensation for
variation in the intake manifold pressure.
Schematic and Routing Diagram
Fuel Delivery System DiagramS7RS0B1702001
Diagnostic Information and Procedures
Fuel Pressure InspectionS7RS0B1704001
WARNING!
Before starting the following procedure, be
sure to observe “Precautions on Fuel System
Service” in order to reduce the risk or fire
and personal injury.

1) Relieve fuel pressure in fuel feed line referring to
“Fuel Pressure Relief Procedure”.
2) Disconnect fuel feed hose from fuel delivery pipe.
3) Connect special tools and hose between fuel feed hose (1) and fuel delivery pipe as shown in figure,
and clamp hoses securely in order to ensure that no
leaks occur during checking.
Special tool
(A): 09912–58442
(B): 09912–58432
(C): 09912–58490
1
3
2
4
I6RS0C170001-01
4
6 7
8
12
2 3
11
10
5
1
9
I6RS0C170002-01
1. Fuel tank
5. Fuel injector9. EVAP canister
2. Fuel pump 6. Fuel feed line10. Fuel filter
3. Fuel pressure regulator 7. Fuel vapor line 11. Main fuel level sensor
4. Delivery pipe 8. Intake manifold12. EVAP canister purge valve
1
(C) (B)
(A)
I3RM0A170004-01