2007 SUZUKI SWIFT Fuel level

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DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
WARNING!
• When performing a road test, select a place where there is no traffic or possibility of a traffic accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out by 2 persons, a driver and a tester, on a level road.

NOTE
Check to make sure that following conditions ar e satisfied when using this “DTC confirmation
procedure”.
• Intake air temperature at engine start: –10 °C (14 ° F) to 80 °C (176 °F)
• Intake air temperature: –10 °C (14 °F) to 70 °C (158 °F)
• Engine coolant temperature: 70 °C (158 °F) to 150 °C (302 °F)
• Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg, 75 kPa or more)

1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Start engine and warm up to normal operating temperature.
4) Run engine at idle for 10 min.
5) Drive vehicle and increase engine speed 3000 rpm in 3rd gear.
6) Release accelerator pedal and with engine brake applied, keep vehicle coasting for 5 sec. or more. (Keep fuel cut condition for 5 sec. or more) If fuel cut condition is not ke pt for 5 sec. or more, coast down a slope in engine speed
1000 – 3000 rpm for 5 sec. or more.
7) Stop vehicle and run engine at idle.
8) Check DTC and pending DTC by using scan tool.
DTC Troubleshooting
NOTE
• When measuring circuit voltage, resistance and/ or pulse signal at ECM connector, connect the
special tool to ECM and/or the ECM connectors re ferring to “Inspection of ECM and Its Circuits”.
• Upon completion of inspection and repair work, perform “DTC Confirmation Procedure” and confirm that the trouble has been corrected.

DTC detecting condition Trouble area
DTC P0401:
Difference in intake manifold absolute pressure between opened EGR valve
and closed EGR valve is smaller than specified value.
(*2 driving cycle detection logic, monitoring once per driving cycle)
DTC P0402:
Difference in intake manifold absolute pressure between opened EGR valve
and closed EGR valve is la rger than specified value.
(*2 driving cycle detection logic, monitoring once per driving cycle) •EGR valve
• EGR passage
• MAP sensor
•ECM
Step
Action YesNo
1 Was “Engine and Emission Control System Check”
performed? Go to Step 2.
Go to “Engine and
Emission Control
System Check”.
2 Do you have SUZUKI scan tool? Go to Step 3.Go to Step 5.

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”.

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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

Downloaded from www.Manualslib.com manuals search engine Fuel System: 1G-4
Repair Instructions
Fuel System ComponentsS7RS0B1706001
5
14
4
24
8
3
13
23
1
25
21
112
22 10
6
16
26
18
17
19
10
12
9
(b)
(a)
15
(c)
20 27
7
I6RS0C170003-01
1. Fuel tank 12. Fuel tank bolt 23. Main fuel level sensor
2. Fuel pump assembly 13. Fuel pump assembly bolt 24. To fuel vapor line
3. Breather hose 14. Fuel filler neck 25. Fuel feed hose
4. Fuel tank filler hose 15. Fuel delivery pipe 26. Grommet
5. Fuel filler cap 16. Fuel delivery pipe bolt 27. To fuel tank
6. Fuel feed line 17. Fuel injector : Do not reuse.
7. Fuel vapor line 18. Injector cushion : 45 N⋅m (4.5 kgf-m, 33.0 lb-ft)
8. Fuel tank inlet valve 19. Fuel delivery pipe insulator : 11 N⋅m (1.1 kgf-m, 8.0 lb-ft)
9. Fuel tank protector 20. O-ring : 25 N⋅m (2.5 kgf-m, 18.0 lb-ft)
10. Fuel tank belt 21. To canister
11. Fuel pump gasket 22. Fuel tank cover

Downloaded from www.Manualslib.com manuals search engine 1G-15 Fuel System:
3) Remove fuel pump assembly (1) from fuel tank (2).
Installation
CAUTION!
When connecting joint, clean outside surface
of pipe where joint is to be inserted, push
joint into pipe till jo int lock clicks and check
to ensure that pipes are connected securely,
or fuel leak may occur.

1) Clean mating surfaces of fuel pump assembly (1) and fuel tank.
2) Put plate (2) on fuel pump assembly (1) by matching the protrusion of fuel pump assembly (3) to plate
hole (4) as shown.
3) Install new gasket (2) and fuel pump assembly (1) earth bracket (5) with plate (3) to fuel tank (4).
Tightening torque
Fuel pump assembly bolt (a): 11 N·m (1.1 kgf-m,
8.0 lb-ft) 4) Connect fuel feed line (1) (pipe joint) to fuel pump
assembly (2).
5) Install fuel tank to vehi cle. Refer to “Fuel Tank
Removal and Installation”.
Main Fuel Level Sensor Removal and
Installation
S7RS0B1706018
CAUTION!
• Do not touch resister plate (1) and deform arm (2). It may cause main fuel level sensor
to fail.
• Be very careful not to cause damage to fuel tube installed section (sealed section
in bore). If it be damaged, replace it with
new one, or fuel will leak from the part.

1
2
I3RM0A170021-01
3
1
3
2
44
I4RS0A170015-01
3
1 2
(a)
4
5
I6RS0C170009-01
2
1
I4RS0A170014-01
1
2I4RS0A170016-01

Downloaded from www.Manualslib.com manuals search engine Fuel System: 1G-16
Removal1) Remove fuel pump assembly from fuel tank referring to “Fuel Pump Assembly Removal and Installation”.
2) Disconnect main fuel level sensor connector (3).
3) With pressing snap-fit part (2), remove main fuel level sensor (1) by sliding it in the arrow direction as
shown in figure.
Installation
Reverse removal procedure for installation.Fuel Pump InspectionS7RS0B1706019
• Check fuel pump assembly for damage.
• Check fuel suction filter for evidence of dirt and contamination. If present, replace or clean and check
for presence of dirt in fuel tank.
• For electrical circuit, refer to “Fuel Pressure Check in Section 1A”.
• For inspection of main fuel level sensor (1), refer to “Fuel Level Sensor Inspection in Section 9C”.
Specifications
Tightening Torque SpecificationsS7RS0B1707001
NOTE
The specified tightening torque is also described in the following.
“Fuel System Components”
“Fuel Hose Disconnecting and Reconnecting”

Reference:
For the tightening torque of fastener not specified in this section, refer to “Fasteners Information in Section 0A”.
1
21
3
I5RS0D170006-031
I5RS0D170008-01
Fastening part
Tightening torque
Note
N ⋅mkgf-mlb-ft
Fuel delivery pipe bolt 25 2.5 18.0 )
Ground wire bolt 11 1.1 8.0 )
Fuel tank bolt 45 4.5 33.0 )
Fuel filler hose clamp 2 0.2 1.5 )
Fuel pump assembly bolt 11 1.1 8.0 )

Downloaded from www.Manualslib.com manuals search engine 9-ii Table of Contents
List of Connectors ........................................... 9A-103
C Connector .................................................... 9A-103
D Connector (M16A engine) ........................... 9A-104
E Connector .................................................... 9A-104
G Connector .................................................... 9A-106
J Connector ..................................................... 9A-108
K Connector .................................................... 9A-109
L Connector..................................................... 9A-109
M Connector (SPORT model) ......................... 9A-111
O Connector .................................................... 9A-111
R Connector .................................................... 9A-111
Lighting Systems .................................... 9B-1
Component Location ........... ................................9B-1
Lighting System Component s Location............... 9B-1
Interior Light System Location............................. 9B-2
Diagnostic Information and Procedures ............ 9B-2 Headlight Symptom Diagnosis ............................ 9B-2
Headlight Leveling System Symptom Diagnosis (If Equipped) ..................................... 9B-2
Turn Signal and Hazard Warning Light Symptom Diagnosis .......................................... 9B-3
Clearance, Tail and License Plate Light Symptom Diagnosis .......................................... 9B-3
Back-Up Light Symptom Diagnosis..................... 9B-4
Brake Light Symptom Diagnosis ......................... 9B-4
Front Fog Light Symptom Diagnosis (If Equipped) .......................................................... 9B-4
Interior Light Symptom Diagnosis ....................... 9B-5
Repair Instructions ..............................................9B-5 Headlight Housing Removal and Installation ...... 9B-5
Headlight Bulb Replacemen t............................... 9B-6
Headlight Aiming Adjustment with Screen .......... 9B-6
Headlight Switch (in Lighting Switch) Removal and Installation ................................... 9B-8
Headlight Switch (in Lighting Switch) Inspection .......................................................... 9B-8
Hazard Warning Switch Removal and Installation ......................................................... 9B-8
Hazard Warning Switch Inspection ..................... 9B-9
Brake Light Switch Inspection ............................. 9B-9
Turn Signal Light Switch (in Lighting Switch) Removal and Installation ................................... 9B-9
Turn Signal Light Switch (in Lighting Switch) Inspection .......................................................... 9B-9
Turn Signal and Hazard Warning Relay Removal and Installation ................................... 9B-9
Turn Signal and Hazard Warning Relay Inspection ........................................................ 9B-10
License Light Removal and Installation............. 9B-10
Front Fog Light Removal and Installation (If Equipped) ........................................................ 9B-11
Front Fog Light Bulb Replacement (If Equipped) ........................................................ 9B-11
Front Fog Light Switch Inspection (If Equipped) ........................................................ 9B-11
Front Fog Light Relay Inspection (If Equipped) ........................................................ 9B-11
Front Fog Light Aiming Adjustment with Screen (If Equipped) ....................................... 9B-12 Headlight Leveling Switch Inspection (If
Equipped) ........................................................ 9B-13
Headlight Leveling Actuator Inspection (If Equipped) ........................................................ 9B-13
Instrumentation / Driver Info. / Horn ...... 9C-1
Precautions ...........................................................9C-1 Precautions in Diagnosing Troubles for Combination Meter ............................................9C-1
General Description .............................................9C-1 CAN Communication System Description...........9C-1
Auto Volume Co ntrol System Description (If
Equipped) ..........................................................9C-3
Schematic and Routing Diagram ........................9C-4 Combination Meter Circuit Diagram ....................9C-4
Component Location ............ ...............................9C-6
Audio System Component Location ....................9C-6
Diagnostic Information and Procedures ............9C-6 Speedometer and VSS Symp tom Diagnosis ......9C-6
Tachometer Symptom Diagnosis ........................9C-6
Engine Coolant Temperature (ECT) Meter Symptom Diagnosis ..........................................9C-7
Fuel Meter Symptom Diagnosis ..........................9C-7
Low Fuel Warning Light Symptom Diagnosis .....9C-7
Oil Pressure Warning Light Symptom Diagnosis ..........................................................9C-8
Brake and Parking Brake Warning Light Symptom Diagnosis ..........................................9C-8
Seat Belt Reminder Light Symptom Diagnosis (If Equipped)......................................................9C-8
A/T Shift Position Indicator Symptom Diagnosis (A/T Model).......................................9C-9
Charge Warning Light Sy mptom Diagnosis ........9C-9
Main Beam (High Beam) Indicator Symptom Diagnosis ..........................................................9C-9
Warning Buzzer Circuit Sy mptom Diagnosis ....9C-10
Cigarette Lighter Symptom Diagnosis (If Equipped) ........................................................9C-10
Horn Symptom Diagnosis .................................9C-10
Information Display Symptom Diagnosis (If Equipped) ........................................................9C-11
Clock Symptom Diagnosis (If Equipped)...........9C-12
Audio System Symptom Diagnosis (If Equipped) ........................................................9C-12
Remote Audio Control Switch Symptom Diagnosis (If Equipped) ...................................9C-13
Navigation Symptom Diagnosis (If Equipped)...9C-14
Repair Instructions ............ ................................9C-14
Ignition Switch Removal and Installation...........9C-14
Ignition Switch Inspection..................................9C-14
Combination Meter Removal and Installation ...9C-15
Fuel Level Sensor Removal and Installation .....9C-15
Fuel Level Sensor Inspection ............................9C-15
Oil Pressure Switch Remova l and Installation ..9C-15
Oil Pressure Switch Inspec tion .........................9C-16
Engine Coolant Temperature (ECT) Sensor Inspection ........................................................9C-16
Brake Fluid Level Switch Inspection .................9C-16
Parking Brake Switch Inspec tion.......................9C-16

Downloaded from www.Manualslib.com manuals search engine 9A-3 Wiring Systems:
Ignition switch Keyless entry Immobilizer system Combination meter Lighting switch
Headlight leveling Hazard warning light Front fog light Rear fog light Spark plug Radiator fan Fuel pumpFuel injectorXX control module Windshield wiper
Windshield washer Rear wiper Rear washer Rear defogger Power window
Power door lock Power mirror A/BPretensioner Passenger side
Driver side Seat heater A/CPower steering Side air-bag (R)
Side air-bag (L) Side curtain air-bag (R) Side curtain air bag (L) Glow plug
I2RH01910912-01I3JA01910902-01I5RH01910901-01I2RH01910915-01I2RH01910916-01
I3JA01910904-01I3JA01910905-01I3JA01910906-01I3JA01910907-01I2RH01910921-01
I2RH01910922-01I3JA01910908-01I5RW0A910987-01
XX
Cont M
I2RH01910925-01I3JA01910909-01
I3JA01910910-01I3JA01910911-01I3JA01910912-01I2RH01910930-01I3JA01910913-01
I3JA01910914-01I3JA01910915-01I3JA01910916-01I3JA01910917-01I3JA01910918-01
I3JA01910919-01I2RH01910938-01I3JA01910920-01I3JA01910921-01I4JA01910901-01
I4JA01910902-01I5RS0A910958-01I5RS0A910959-01
I5RW0A910986-01