Circuit check SUZUKI SWIFT 2007 2.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine 00-11 Precautions:
Precaution for Vehicle Equipped with ESP®
System
S7RS0B0000015
• When testing with any of the following equipments
(when vehicle is tested by rotating wheels (tires)
under vehicle stop), be sure to deactivate ESP ®
system referring to “Precautions in Speedometer Test
or Other Tests in Section 4F” to obtain correct data.
– 2 or 4-wheel chassis dynamometer
– Speedometer tester
– Brake tester
–Etc.
ESP ® control module
• When ESP ® control module is removed / installed, do
not use impact wrenches which generate shock or
impact to avoid damaging sensors in ESP ® control
module.
• When any of the following operation is done, calibrate steering angle sensor referring to “Sensor Calibration
in Section 4F”.
– When battery or dome fuse is removed.
– When steering angle sensor is replaced.
Brake CautionS7RS0B0000014
CAUTION!
All brake fasteners are important attaching
parts in that they could affect the
performance of vital parts and systems, and/
or could result in major repair expense. They
must be replaced with one of same part
number or with an eq uivalent part if
replacement becomes necessary. Do not use
a replacement part of lesser quality or
substitute design. Torque values must be
used as specified during reassembly to
assure proper retention of all parts. There is
to be no welding as it may result in extensive
damage and weakening of the metal.

Repair Instructions
Electrical Circuit Inspection ProcedureS7RS0B0006001
While there are various electrical circuit inspection
methods, described here is a general method to check
its open and short circuit by using an ohmmeter and a
voltmeter.
Open Circuit Check
Possible causes for the open circuit are as follows. As
the cause is in the connector or terminal in many cases,
they need to be checked particularly carefully.
• Loose connection of connector
• Poor contact of terminal (due to dirt, corrosion or rust
on it, poor contact tension, entry of foreign object etc.)
• Wire harness being open
When checking system circuits including an electronic
control unit such as ECM, TCM, ABS control module,
etc., it is important to perfor m careful check, starting with
items which are easier to check.
1) Disconnect negative (–) cable from battery
2) Check each connector at both ends of the circuit being checked for loose connection. Also check lock
condition of connector if equipped with connector
lock. 3) Using a test male terminal
, check both terminals of
the circuit being checked for contact tension of its
female terminal. Check each terminal visually for
poor contact (possibly caused by dirt, corrosion, rust
entry of foreign object, etc.). At the same time, check
to make sure that each te rminal is locked in the
connector fully.
1. Check contact tension by inserting and removing just for once.
I2RH01010049-01
I2RH01010050-01

Downloaded from www.Manualslib.com manuals search engine Precautions: 00-12
4) Using continuity check or voltage check the following procedure, check the wire harness for open circuit
and poor connection with its terminals. Locate
abnormality, if any.
Continuity Check 1) Measure resistance between connector terminals at both ends of the circuit being checked (between “A-
1” and “C-1” in the figure). If no continuity is indicated
(infinity or over limit), that means that the circuit is
open between terminals “A-1” and “C-1”.
2) Disconnect the connector included in the circuit (connector-B in the figure) and measure resistance
between terminals “A-1” and “B-1”.
If no continuity is indica ted, that means that the
circuit is open between terminals “A-1” and “B-1”. If
continuity is indicated, there is an open circuit
between terminals “B-1” and “C-1” or an abnormality
in connector-B. Voltage Check
If voltage is supplied to the circuit being checked, voltage
check can be used as circuit check.
1) With all connectors connected and voltage applied to the circuit being checked, measure voltage between
each terminal and body ground.
a) If measurements were taken as shown in the figure and results were as listed in the following,
it means that the circuit is open between
terminals “B-1” and “A-1”.
Voltage between
“C-1” and body ground: Approx. 5 V
“B-1” and body ground: Approx. 5 V
“A-1” and body ground: 0 V
b) Also, if measured values were as listed in the following, it means that there is a resistance
(abnormality) of such le vel that corresponds to
the voltage drop in the circuit between terminals
“A-1” and “B-1”.
Voltage between
“C-1” and body ground: Approx. 5 V
“B-1” and body ground: Approx. 5 V
“A-1” and body ground: Approx. 3 V
1. Looseness of crimping
2. Open
3. Thin wire (single strand of wire)
I2RH01010051-01
I2RH01010052-01
I2RH01010053-01
I5RH01000005-01

Downloaded from www.Manualslib.com manuals search engine 00-13 Precautions:
Short Circuit Check (Wire Harness to Ground)1) Disconnect negative (–) cable at battery.
2) Disconnect connectors at bot h ends of the circuit to
be checked.
NOTE
If the circuit to be checked is connected to
other parts (1), disconnect all connectors of
those parts.
Otherwise, diagnosis will be misled.

3) Measure resistance between terminal at one end of circuit (“A-1” terminal in the figure) and body ground.
If continuity is indicated, it means that there is a short
to ground between terminals “A-1” and “C-1” of the
circuit. 4) Disconnect the connector included in circuit
(connector-B) and measure resistance between “A-
1” and body ground. If continuity is indicated, it
means that the circuit is shorted to the ground
between terminals “A-1” and “B-1”.
Intermittent and Poor Connection InspectionS7RS0B0006002
Most intermittent are caused by faulty electrical
connections or wiring, although a sticking relay or
solenoid can occasionally be at fault. When checking it
for proper connection, perfor m careful check of suspect
circuits for:
• Poor mating of connector halves, or terminals not fully seated in the connector body (backed out).
• Dirt or corrosion on the terminals. The terminals must be clean and free of any foreign material which could
impede proper terminal contact. However, cleaning
the terminal with a sand paper or the like is prohibited.
• Damaged connector body, exposing the terminals to moisture and dirt, as well as not maintaining proper
terminal orientation with the component or mating
connector.
I5RH01000006-01
1. To other parts
I2RH01010056-01
I2RH01010057-01

Downloaded from www.Manualslib.com manuals search engine Precautions: 00-14
• Improperly formed or damaged terminals.Check each connector terminal in problem circuits
carefully to ensure good contact tension by using the
corresponding mating terminal.
If contact tension is not enough, reform it to increase
contact tension or replace.
• Poor terminal-to -wire connection.
Check each wire harness in problem circuits for poor
connection by shaking it by hand lightly. If any
abnormal condition is found, repair or replace. • Wire insulation which is rubbed through, causing an
intermittent short as the bare area touches other
wiring or parts of the vehicle.
• Wiring broken inside the insulation. This condition
could cause continuity check to show a good circuit,
but if only 1 or 2 strands of a multi-strand-type wire
are intact, resistance could be far too high.
If any abnormality is found, repair or replace.
1. Check contact tension by inserting and removing just once.
2. Check each terminal for bend and proper alignment.
I5RH01000007-01
I2RH01010059-01
I2RH01010060-01

Downloaded from www.Manualslib.com manuals search engine Table of Contents 1- i
1
Section 1
CONTENTS
Engine
Precautions ................................................. 1-1
Precautions............................................................. 1-1
Precautions for Engine .......................................... 1-1
Engine General Information and
Diagnosis ............. .................................... 1A-1
Precautions........................................................... 1A-1
Precautions on Engine Service ........................... 1A-1
Precaution on On-Board Diagnostic (OBD) System .............................................................. 1A-1
Precautions in Diagnosing Trouble ..................... 1A-1
Precautions of ECM Circuit Inspection................ 1A-2
Precautions of Electric Throttle Body System
Calibration ......................................................... 1A-2
General Description ............................................. 1A-2 Statement on Cleanliness and Care ................... 1A-2
Engine Diagnosis General Description ............... 1A-3
On-Board Diagnostic System Description ........... 1A-3
Data Link Connector (DLC) ................................. 1A-6
Engine and Emission Control System Description ........................................................ 1A-6
CAN Communication System Description........... 1A-7
Air Intake System Description ............................. 1A-9
Description of Electric Throttle Body System ...... 1A-9
Description of Electric Throttle Body System Calibration ....................................................... 1A-10
Fuel Cut Control Description ............................. 1A-10
Generator Control System Description ............. 1A-11
Electronic Control System Description .............. 1A-12
Engine and Emission Control Input / Output Table ............................................................... 1A-18
Schematic and Routing Diagram ...................... 1A-19 Engine and Emission Control System Diagram .......................................................... 1A-19
Component Locatio n ......................................... 1A-21
Electronic Control System Components Location .......................................................... 1A-21
Diagnostic Information and Procedures .......... 1A-22 Engine and Emission Control System Check.... 1A-22
Malfunction Indicator Lamp (MIL) Check .......... 1A-25
DTC Check ....................................................... 1A-26
DTC Clearance ................................................. 1A-27
DTC Table ......................................................... 1A-27
Fail-Safe Table ................ .................................. 1A-31 Scan Tool Data ................................................. 1A-33
Visual Inspection ............................................... 1A-37
Engine Basic Inspection .................................... 1A-38
Engine Symptom Diagnosis .............................. 1A-41
MIL Does Not Come ON with Ignition Switch
ON and Engine Stop (but Engine Can Be
Started) ........................................................... 1A-47
Malfunction Indicator Lamp Remains ON after Engine Starts................................................... 1A-48
DTC P0010: “A” Camshaft Position Actuator Circuit .............................................................. 1A-49
DTC P0011 / P0012: “A” Camshaft Position - Timing Over-Advanced or System
Performance / -Retarded................................. 1A-52
DTC P0031 / P0032: HO2S Heater Control Circuit Low / High (Sensor-1) .......................... 1A-54
DTC P0037 / P0038: HO2S Heater Control Circuit Low / High (Sensor-2) .......................... 1A-56
DTC P0101: Mass or Volume Air Flow Circuit Range / Performance ...................................... 1A-58
DTC P0102: Mass or Volume Air Flow Circuit Low Input......................................................... 1A-61
DTC P0103: Mass or Volume Air Flow Circuit High Input ........................................................ 1A-63
DTC P0106: Manifold Absolute Pressure /
Barometric Pressure Circuit Range /
Performance.................................................... 1A-64
DTC P0107: Manifold Absolute Pressure /
Barometric Pressure Circ uit Low Input............ 1A-66
DTC P0108: Manifold Absolute Pressure /
Barometric Pressure Circ uit High Input ........... 1A-67
DTC P0111: Intake Air Temperature Sensor 1 Circuit Range / Performance ........................... 1A-69
DTC P0112: Intake Air Temperature Sensor 1 Circuit Low ...................................................... 1A-72
DTC P0113: Intake Air Temperature 1 Sensor Circuit High...................................................... 1A-74
DTC P0116: Engine Coolant Temperature Circuit Range / Performance ........................... 1A-76
DTC P0117: Engine Coolant Temperature Circuit Low ...................................................... 1A-79
DTC P0118: Engine Coolant Temperature Circuit High...................................................... 1A-81
DTC P0122: Throttle / Pedal Position Sensor / Switch “A” (Main) Circuit Low ........................ 1A-83

Downloaded from www.Manualslib.com manuals search engine 1-ii Table of Contents
DTC P0123: Throttle / Pedal Position Sensor / Switch “A” (Main) Circuit High ....................... 1A-85
DTC P0131 / P0132: O2 Sensor (HO2S) Circuit Low Voltage / High Voltage (Sensor-
1) ..................................................................... 1A-88
DTC P0133: O2 Sensor (HO2S) Circuit Slow
Response (Sensor- 1) ...................................... 1A-91
DTC P0134: O2 Sensor (HO2S) Circuit No Activity Detected (Sensor -1) ........................... 1A-92
DTC P0137 / P0138: O2 Sensor (HO2S) Circuit Low Voltage / High Voltage (Sensor-
2) ..................................................................... 1A-94
DTC P0140: O2 Sensor (HO2S) Circuit No Activity Detected (Sensor -2) ........................... 1A-97
DTC P0171 / P0172: Fuel System Too Lean / Rich ................................................................. 1A-98
DTC P0222: Throttle / Pedal Position Sensor / Switch “B” (Sub) Circuit Low ....................... 1A-100
DTC P0223: Throttle / Pedal Position Sensor / Switch “B” (Sub) Circuit High ...................... 1A-102
DTC P0300 / P0301 / P0302 / P0303 / P0304: Random / Multiple Cylin der Misfire Detected
/ Cylinder 1 / Cylinder 2 / Cylinder 3 /
Cylinder 4 Misfire Detected ........................... 1A-105
DTC P0327 / P0328: Knoc k Sensor 1 Circuit
Low / High ..................................................... 1A-107
DTC P0335: Crankshaft Position (CKP) Sensor “A” Circuit .......................................... 1A-109
DTC P0340: Camshaft Position (CMP) Sensor “A” Circuit .......................................... 1A-111
DTC P0350: Ignition Coil Primary / Secondary Circuit ............................................................ 1A-114
DTC P0401 / P0402: Exhaust Gas Recirculation Flow Insufficient Detected /
Excessive Detected ...................................... 1A-116
DTC P0403: Exhaust Gas Recirculation Control Circuit ................... ............................ 1A-118
DTC P0420: Catalyst System Efficiency
below Threshold ................ ............................ 1A-120
DTC P0443: Evaporativ e Emission System
Purge Control Valve Circuit ........................... 1A-122
DTC P0480: Fan 1 (Radiator Cooling Fan) Control Circuit ................... ............................ 1A-124
DTC P0500: Vehicle Speed Sensor “A” Malfunction .................................................... 1A-128
DTC P0532: A/C Refrigerant Pressure Sensor “A” Circuit Low ... ............................... 1A-130
DTC P0533: A/C Refrigerant Pressure Sensor “A” Circuit High ................................. 1A-132
DTC P0601 / P0602 / P0607: Internal Control Module Memory Check Sum Error / Control
Module Programming Error / Control Module
Performance ................................................. 1A-134
DTC P0616: Starter Relay Circuit Low............ 1A-135
DTC P0617: Starter Relay Circuit High ........... 1A-136
DTC P0620: Generator Control Circuit ........... 1A-137
DTC P0625 / P0626: Generator Field Terminal Circuit Low / High . .......................... 1A-139
DTC P1501 / P1502: Electric Load Current Sensor Circuit Low / High . ............................ 1A-141 DTC P1510: ECM Back-Up Power Supply
Malfunction .................................................... 1A-143
DTC P1603: TCM Trouble Code Detected ..... 1A-144
DTC P1674: CAN Communication (Bus Off Error) ............................................................. 1A-145
DTC P1676: CAN Communication (Reception Error for TCM) ............................................... 1A-148
DTC P1678: CAN Communication (Reception Error for BCM) ............................................... 1A-149
DTC P1685: CAN Communication (Reception Error for ABS/ESP ® Control Module) ........... 1A-150
DTC P2101: Throttle Actuator Control Motor Circuit Range / Performance ......................... 1A-152
DTC P2102: Throttle Actuator Control Motor Circuit Low .................................................... 1A-154
DTC P2103: Throttle Actuator Control Motor Circuit High.................................................... 1A-155
DTC P2111 / P2112: Throttle Actuator Control System - Stuck Open / Closed ...................... 1A-156
DTC P2119: Throttle Actu ator Control Throttle
Body Range / Performance ........................... 1A-157
DTC P2122: Throttle / Pedal Position Sensor / Switch “D” (Main) Circuit Low Input............. 1A-159
DTC P2123: Throttle / Pedal Position Sensor / Switch “D” (Main) Circuit High Input ............ 1A-161
DTC P2127: Throttle Pedal Position Sensor / Switch “E” (Sub) Circuit Low Input ................ 1A-164
DTC P2128: Throttle / Pedal Position Sensor
/ Switc
h “E” (Sub) Circuit High Input ............. 1A-166
DTC P2135: Throttle / Pedal Position Sensor / Switch “A”/“B” (Main / Sub) Voltage
Correlation..................................................... 1A-168
DTC P2138: Throttle / Pedal Position Sensor / Switch “D”/“E” (Main / Sub) Voltage
Correlation..................................................... 1A-171
DTC P2227 / P2228 / P2229: Barometric Pressure Circuit Malfunction ......................... 1A-173
Inspection of ECM and Its Circuits .................. 1A-175
ECM Power and Ground Circuit Check........... 1A-194
Fuel Injector Circuit Check .............................. 1A-198
Fuel Pump and Its Circuit Check..................... 1A-200
Fuel Pressure Check....................................... 1A-203
A/C System Circuits Check ............................. 1A-205
Electric Load Signal Circuit Check .................. 1A-209
Radiator Cooling Fan Low Speed Control System Check ............................................... 1A-211
Radiator Cooling Fan High Speed Control System Check ............................................... 1A-213
Repair Instructions ......... .................................1A-216
Idle Speed and IAC Throttle Valve Opening Inspection ...................................................... 1A-216
Special Tools and Equipmen t .........................1A-217
Special Tool .................................................... 1A-217
Aux. Emission Control Devices ............. 1B-1
Diagnostic Information and Procedures ............1B-1
EGR System Inspection ...................................... 1B-1
Repair Instructions ............ ..................................1B-1
EVAP Canister Purge Inspec tion ........................ 1B-1

Downloaded from www.Manualslib.com manuals search engine Table of Contents 1-iii
EVAP Canister Purge Valve and Its Circuit
Inspection.......................................................... 1B-2
Vacuum Passage Inspection .............................. 1B-3
Vacuum Hose and Purge Valve Chamber Inspection.......................................................... 1B-3
EVAP Canister Purge Valve Inspection .............. 1B-3
EVAP Canister Inspection ... ................................ 1B-4
EGR Valve Removal and Installation .................. 1B-4
EGR Valve Inspection ......................................... 1B-4
PCV Hose Inspection .......................................... 1B-4
PCV Valve Inspection ......................................... 1B-5
Special Tools and Equipmen t ............................. 1B-5
Special Tool ........................................................ 1B-5
Engine Electrical Devices .. ..................... 1C-1
Repair Instructions .............................................. 1C-1
ECM Removal and Installation ............................ 1C-1
MAP Sensor Inspection ...................................... 1C-2
Electric Throttle Body Assembly On-Vehicle
Inspection.......................................................... 1C-2
Electric Throttle Body System Calibration ........... 1C-5
APP Sensor Assembly On-V ehicle Inspection .... 1C-5
APP Sensor Assembly Removal and Installation ......................................................... 1C-5
APP Sensor Assembly Inspection ...................... 1C-6
ECT Sensor Removal and In stallation ................ 1C-6
ECT Sensor Inspection ....................................... 1C-7
HO2S-1 and HO2S-2 Heater On-Vehicle Inspection.......................................................... 1C-7
HO2S-1 and HO2S-2 Removal and Installation ......................................................... 1C-7
CMP Sensor Removal and In stallation ............... 1C-8
Camshaft Position (CMP) Se nsor Inspection ...... 1C-8
CKP Sensor Removal and Installation ................ 1C-9
CKP Sensor Inspection ....................................... 1C-9
Knock Sensor Removal and Installation ........... 1C-10
Main Relay, Fuel Pump Relay and Starting
Motor Control Relay Inspection....................... 1C-10
MAF and IAT Sensor On-Vehicle Inspection .... 1C-11
MAF and IAT Sensor Removal and Installation ....................................................... 1C-11
MAF and IAT Sensor Inspection ....................... 1C-12
Electric Load Current Sensor On-Vehicle Inspection........................................................ 1C-12
Specifications ..................................................... 1C-13
Tightening Torque Specifications ...................... 1C-13
Engine Mechanical ......... ......................... 1D-1
General Description ............................................. 1D-1
Engine Construction Description ......................... 1D-1
Camshaft Position Control (VVT Variable Valve Timing) System Description .................... 1D-2
Diagnostic Information and Procedures ............ 1D-4 Compression Check ............................................ 1D-4
Engine Vacuum Check ....................................... 1D-5
Valve Lash (Clearance) Inspection ..................... 1D-6
Repair Instructions .............................................. 1D-9 Air Cleaner Components ..................................... 1D-9
Air Cleaner Element Removal and Installation .... 1D-9 Air Cleaner Element Ins
pection and Cleaning ..1D-10
Cylinder Head Co ver Removal and
Installation .......................................................1D-10
Throttle Body and Intake Manifold
Components ....................................................1D-12
Throttle Body On-Vehicle Inspection.................1D-13
Electric Throttle Body Assembly Removal and Installation .......................................................1D-13
Throttle Body Cleaning......................................1D-14
Intake Manifold Removal and Installation .........1D-14
Engine Mountings Components ........................1D-16
Engine Assembly Removal and Installation ......1D-17
Timing Chain Cover Components .....................1D-20
Timing Chain Cover Removal and Installation ..1D-21
Timing Chain Cover Inspection .........................1D-23
Oil Control Valve Removal and Installation .......1D-23
Oil Control Valve Inspection ..............................1D-24
Timing Chain and Chain Tensioner Components ....................................................1D-24
Timing Chain and Chain Tensioner Removal and Installation ................................................1D-25
Timing Chain and Chain Tensioner Inspection ..1D-27
Camshaft, Tappet and Shim Components ........1D-28
Camshaft, Tappet and Shim Removal and Installation .......................................................1D-29
Camshaft, Tappet and Shim Inspection ............1D-31
Valves and Cylinder Head Components ...........1D-34
Valves and Cylinder Head Removal and
Installation .......................................................1D-35
Valves and Cylinder Head Disassembly and Assembly.........................................................1D-37
Valves and Valve Guides Inspection.................1D-40
Cylinder Head Inspection . .................................1D-42
Valve Spring Inspection ....................................1D-43
Pistons, Piston Rings , Connecting Rods and
Cylinders Components ....................................1D-44
Pistons, Piston Rings , Connecting Rods and
Cylinders Removal and Installation .................1D-45
Pistons, Piston Rings , Connecting Rods and
Cylinders Disassembly and Assembly ............1D-46
Cylinders, Pistons and Piston Rings Inspection ........................................................1D-47
Piston Pins and Connecting Rods Inspection ...1D-49
Crank Pin and Connecting Rod Bearings Inspection ........................................................1D-50
Main Bearings, Cran kshaft and Cylinder
Block Components ..........................................1D-53
Main Bearings, Cran kshaft and Cylinder
Block Removal and Installa tion .......................1D-54
Crankshaft Inspection .......................................1D-57
Main Bearings Inspection . .................................1D-59
Sensor Plate Inspection ....................................1D-63
Rear Oil Seal Inspection ...................................1D-63
Flywheel Inspection...........................................1D-63
Cylinder Block Inspection ..................................1D-63
Specifications .................... .................................1D-64
Tightening Torque Specifications ......................1D-64
Special Tools and Equipmen t ...........................1D-66
Recommended Service Material .......................1D-66
Special Tool ......................................................1D-66

Downloaded from www.Manualslib.com manuals search engine 1-iv Table of Contents
Engine Lubrication System.....................1E-1
General Description ............................................. 1E-1
Engine Lubrication Description ........................... 1E-1
Diagnostic Information and Procedures ............ 1E-2 Oil Pressure Check ............................................. 1E-2
Repair Instructions ........... ................................... 1E-3
Heat Exchanger Components ............................. 1E-3
Heat Exchanger On-Vehicle Inspection .............. 1E-4
Heat Exchanger Removal and Installation .......... 1E-4
Oil Pan and Oil Pump Strainer Components....... 1E-5
Oil Pan and Oil Pump Strainer Removal and
Installation ......................................................... 1E-5
Oil Pan and Oil Pump Stra iner Cleaning ............. 1E-7
Oil Pump Components ........................................ 1E-8
Oil Pump Removal and Installation ..................... 1E-8
Oil Pump Disassembly and Reassembly ............ 1E-8
Oil Pump Inspection ............................................ 1E-9
Specifications .... ................................................. 1E-11
Tightening Torque Specifications ...................... 1E-11
Special Tools and Equipmen t ........................... 1E-11
Recommended Service Material ....................... 1E-11
Special Tool ...................................................... 1E-11
Engine Cooling System ..... ...................... 1F-1
General Description .......... ................................... 1F-1
Cooling System Descriptio n ................................ 1F-1
Coolant Description ............................................. 1F-1
Schematic and Routing Diagram ........................ 1F-2 Coolant Circulation .............................................. 1F-2
Diagnostic Information and Procedures ............ 1F-4 Engine Cooling Symptom Diagnosis ................... 1F-4
Repair Instructions ........... ................................... 1F-5
Cooling System Components.............................. 1F-5
Coolant Level Check ........................................... 1F-6
Engine Cooling System Inspection and Cleaning ............................................................ 1F-6
Cooling System Draining.. ................................... 1F-6
Cooling System Flush and Refill ......................... 1F-7
Cooling Water Pipes or Hoses Removal and Installation ......................................................... 1F-7
Thermostat Removal and In stallation.................. 1F-8
Thermostat Inspection......................................... 1F-8
Radiator Cooling Fan Motor On-Vehicle Inspection .......................................................... 1F-9
Radiator Cooling Fan Rela y Inspection............... 1F-9
Radiator Cooling Fan Removal and Installation ....................................................... 1F-10
Radiator On-Vehicle Inspection and Cleaning .. 1F-10
Radiator Removal and Inst allation .................... 1F-10
Water Pump Removal and In stallation .............. 1F-11
Water Pump Inspection ..................................... 1F-11
Specifications .... ................................................. 1F-12
Tightening Torque Specifications ...................... 1F-12
Special Tools and Equipmen t ........................... 1F-12
Recommended Service Material ....................... 1F-12
Fuel System ................... .......................... 1G-1
Precautions.......................................................... 1G-1 Precautions on Fuel System Service ................. 1G-1
General Description ............................................ 1G-1 Fuel System Description .................................... 1G-1
Fuel Delivery System Description ...................... 1G-1
Fuel Pump Description ....................................... 1G-2
Schematic and Routing Diagram ....................... 1G-2 Fuel Delivery System Diag ram........................... 1G-2
Diagnostic Information and Procedures ........... 1G-2 Fuel Pressure Inspection ................................... 1G-2
Fuel Cut Operation Inspection ........................... 1G-3
Repair Instructions ............ ................................. 1G-4
Fuel System Components .................................. 1G-4
Fuel Hose Disconnecting and Reconnecting ..... 1G-5
Fuel Pressure Relief Procedure ......................... 1G-7
Fuel Leakage Check Procedure......................... 1G-7
Fuel Lines On-Vehicle Inspection ...................... 1G-7
Fuel Pipe Removal and Installation.................... 1G-7
Fuel Injector On-Vehicle Inspection ................... 1G-8
Fuel Injector Removal and Installation ............... 1G-8
Fuel Injector Inspection ...................................... 1G-9
Fuel Filler Cap Inspection . ............................... 1G-10
Fuel Tank Inlet Valve Removal and Installation ...................................................... 1G-11
Fuel Tank Inlet Valve Inspection ...................... 1G-12
Fuel Tank Removal and Installation ................. 1G-12
Fuel Tank Inspection ........................................ 1G-13
Fuel Tank Purging Procedure .......................... 1G-14
Fuel Pump On-Vehicle Inspection.................... 1G-14
Fuel Pump Assembly Removal and Installation ...................................................... 1G-14
Main Fuel Level Sensor Removal and Installation ...................................................... 1G-15
Fuel Pump Inspection ...................................... 1G-16
Specifications ..................... ............................... 1G-16
Tightening Torque Specifications ..................... 1G-16
Special Tools and Equipmen t .......................... 1G-17
Special Tool ..................................................... 1G-17
Ignition System .............. .......................... 1H-1
General Description .............................................1H-1
Ignition System Construction ..............................1H-1
Schematic and Routing Diagram ........................1H-2 Ignition System Wiring Circuit Diagram...............1H-2
Component Location ............ ...............................1H-3
Ignition System Components Location................1H-3
Diagnostic Information and Procedures ............1H-4 Ignition System Symptom Diagnosis...................1H-4
Reference Waveform of Ignition System.............1H-4
Ignition System Check ........................................1H-4
Ignition Spark Test ..............................................1H-6
Repair Instructions ............ ..................................1H-6
High-Tension Cord Removal and Installation......1H-6
High-Tension Cord Inspection.............................1H-7
Spark Plug Removal and Installation ..................1H-7
Spark Plug Inspection .........................................1H-7
Ignition Coil Assembly (Including ignitor)
Removal and Installation ...................................1H-8
Ignition Coil Assembly (Including ignitor)
Inspection ..........................................................1H-8

Downloaded from www.Manualslib.com manuals search engine Table of Contents 1-v
Ignition Timing Inspection ................................... 1H-8
Specifications ....................................................... 1H-9
Tightening Torque Specifications ........................ 1H-9
Special Tools and Equipmen t ............................. 1H-9
Special Tool ........................................................ 1H-9
Starting System ................. ........................ 1I-1
Schematic and Routing Diagram ......................... 1I-1
Cranking System Circuit Diagram ........................ 1I-1
Diagnostic Information and Procedures ............. 1I-1
Cranking System Symptom Diagnosis ................. 1I-1
Cranking System Test.......................................... 1I-3
Repair Instructions ............................................... 1I-4 Starting Motor Dismounting and Remounting ...... 1I-4
Starting Motor Components ................................. 1I-5
Starting Motor Inspection ..................................... 1I-6
Specifications ........................................................ 1I-9
Cranking System Specifications........................... 1I-9
Tightening Torque Specifications ......................... 1I-9
Special Tools and Equipment .............................. 1I-9
Recommended Service Material .......................... 1I-9
Charging System ............ .......................... 1J-1
General Description ......... .................................... 1J-1
Battery Description ...............................................1J-1
Generator Descripti on ..........................................1J-2
Diagnostic Information and Procedures ............ 1J-4 Battery Inspection ................................................1J-4
Generator Symptom Diagnosis ............................1J-4 Generator Test (Undercharged Battery
Check) ............................................................... 1J-5
Generator Test (Overcharg ed Battery Check) .... 1J-6
Repair Instructions ........... ................................... 1J-6
Jump Starting in Case of Emergency.................. 1J-6
Battery Dismounting and Remounting ................ 1J-7
Water Pump / Generator Drive Belt Tension Inspection and Adjustment ................................ 1J-7
Water Pump / Generator Drive Belt Removal and Installation .................................................. 1J-8
Generator Unit Co mponents ............................... 1J-9
Generator Dismounting a nd Remounting............ 1J-9
Generator Components........ ............................. 1J-10
Generator Insp ection......................................... 1J-11
Specifications ..................................................... 1J-13 Charging System Specifications ....................... 1J-13
Tightening Torque Specifications ...................... 1J-13
Exhaust System .............. ......................... 1K-1
General Description .............................................1K-1
Exhaust System Description ............................... 1K-1
Diagnostic Information and Procedures ............1K-1 Exhaust System Check ....................................... 1K-1
Repair Instructions ........... ...................................1K-2
Exhaust System Components ............................. 1K-2
Exhaust Manifold Removal and Installation ........ 1K-3
Exhaust Pipe and Muffler Removal and Installation ......................................................... 1K-4
Specifications .................... ...................................1K-5
Tightening Torque Specifications ........................ 1K-5

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-1
Engine
Engine General Information and Diagnosis
Precautions
Precautions on Engine ServiceS7RS0B1100001
CAUTION!
The following information on engine service
should be noted carefully, as it is important in
preventing damage, and in contributing to
reliable engine performance.

• When raising or supporting engine for any reason, do
not use a jack under oil pan. Due to small clearance
between oil pan and oil pump strainer, jacking against
oil pan may cause it to be bent against strainer,
resulting in damaged oil pick-up unit.
• It should be kept in mind , while working on engine,
that 12-volt electrical syste m is capable of violent and
damaging short circuits.
When performing any work where electrical terminals
can be grounded, ground cable of the battery should
be disconnected at battery.
• Any time the air cleaner, throttle body or intake manifold is removed, the intake opening should be
covered. This will protect against accidental entrance
of foreign material which could follow intake passage
into cylinder and cause extensive damage when
engine is started.
Precaution on On-Board Diagnostic (OBD)
System
S7RS0B1100005
There are two types of On -Board Diagnostic (OBD)
system, Euro OBD system and non-Euro-OBD system,
depending on the vehicle specification.
As the diagnosis function is different between these two
types, be sure to fully understand the OBD system
referring to “On-Board Diagnostic System Description”.
OBD System Summary Table
Precautions in Diagnosing TroubleS7RS0B1100002
NOTE
There are two types of OBD system
depending on the vehicle specification.
For details, refer to “Precaution on On-Board
Diagnostic (OBD) System”.

• Don’t disconnect couplers from ECM, battery cable
from battery, ECM ground wire harness from engine
or main fuse before confirming diagnostic information
(DTC, freeze frame data, etc.) stored in ECM memory.
Such disconnection will erase memorized information
in ECM memory.
• Diagnostic information stored in ECM memory can be cleared as well as checke d by using SUZUKI scan
tool or OBD generic scan tool. Before using scan tool,
read its Operator’s (Instruction) Manual carefully to
have good understanding as to what functions are
available and how to use it.
For Euro OBD model it is indistinguishable which
module turns on MIL because not only ECM but also
TCM (A/T model) turns on MIL (For details of on-
board diagnostic system for A/T model, refer to “On-
Board Diagnostic System Description in Section 5A”).
Therefore, check both ECM and TCM (A/T model) for
DTC when MIL lights on.
When checking ECM for DTC, keep in mind that DTC
is displayed on the scan tool as follows depending on
the scan tool used.
– SUZUKI scan tool displays DTC detected by ECM.
– OBD generic scan tool displays DTC detected by each of ECM and TCM (A/T model) simultaneously.
• Priorities for diagnosing troubles If two or more DTCs are stored, proceed to the DTC
flow which has been detected earliest in the order and
follow the instructi on in that flow.
If no instructions are given, troubleshoot DTCs
according to the following priorities.
a. DTCs other than DTC P0171 / P0172 (Fuel system too lean / too rich), DTC P0300 / P0301 /
P0302 / P0303 / P0304 (Misfire detected) and
DTC P0401 / P0402 (EGR flow malfunction)
b. DTC P0171 / P0172 (Fuel system too lean / too rich) and DTC P0401 / P0402 (EGR flow
malfunction)
c. DTC P0300 / P0301 / P0302 / P0303 / P0304 (Misfire detected)
Euro OBD
model Non-Euro-OBD
model
Quantity of DTC
related to engine
control Approx. 80 Approx. 60
Freeze frame
data Available Not available
SUZUKI scan
tool Available Available
OBD generic
scan tool Available Not available