2000 SUZUKI SWIFT battery

ENGINE AND EMISSION CONTROL SYSTEM 6E1-31
HEATED OXYGEN SENSOR (HO2S-1 AND HO2S-2)
OXYGEN SENSOR HEATER INSPECTION
1) Disconnect sensor connector.
2) Using ohmmeter, measure resistance between terminals
“V
B” and “GND” of sensor connector.
If found faulty, replace oxygen sensor.
Resistance of oxygen sensor heater
HO2S-1 : 5.0 – 6.4
Ω at 20°C (68°F)
HO2S-2 : 11.7 – 14.3
Ω at 20°C (68°F)
3) Connect sensor connector securely.
REMOVAL
1) Disconnect negative cable at battery.
2) For HO2S-1, disconnect connector of heated oxygen sensor
and release its wire harness from clamps, then remove front
bumper and heat insulator panel.
3) For HO2S-2, disconnect connector of heated oxygen sensor
and release its wire harness from clamp and hoist vehicle.
4) Remove heated oxygen sensor (1) from exhaust manifold or
exhaust pipe.
INSTALLATION
Reverse removal procedure noting the following.
Tighten heated oxygen sensor (1) to specified torque.
Tightening torque
Heated oxygen sensor (a) : 45 N·m (4.5 kg-m, 32.5 lb-ft)
Connect connector of heated oxygen sensor (1) and clamp
wire harness securely.
After installing heated oxygen sensor (1), start engine and
check that no exhaust gas leakage exists. NOTE:
Temperature of sensor affects resistance value largely.
Make sure that sensor heater is at correct temperature.
1. Viewed from terminal side
WARNING:
To avoid danger of being burned, do not touch exhaust
system when system is hot. Oxygen sensor removal
should be performed when system is cool.
[A] : HO2S-1
[B] : HO2S-2

6E1-32 ENGINE AND EMISSION CONTROL SYSTEM
CAMSHAFT POSITION SENSOR
INSPECTION
Check camshaft position sensor referring to DTC P0340 (No.15)
Diag. Flow Table in Section 6. If malfunction is found, replace.
REMOVAL
1) Disconnect negative cable at battery.
2) Disconnect connector from camshaft position sensor.
3) Remove camshaft position sensor from cylinder head.
INSTALLATION
1) Check that O-ring is free from damage.
2) Check that camshaft position sensor and signal rotor teeth
are free from any metal particles and damage.
3) Install camshaft position sensor to cylinder head.
Tightening torque
Camshaft position sensor bolt
(a) : 10 N·m (1.0 kg-m, 7.5 lb-ft)
4) Connect connector to it securely.
5) Connect negative cable to battery.
CRANKSHAFT POSITION SENSOR
INSPECTION
Check crankshaft position sensor referring to step 1 and 2 of DTC
P0335 (No.23) Flow Table. If malfunction is found, replace.
REMOVAL
1) Disconnect negative cable at battery.
2) Remove generator drive belt, loosen pivot bolt and move
generator outward.
3) Disconnect connector from crankshaft position sensor.
4) Remove crankshaft position sensor (1) from cylinder block.
INSTALLATION
1) Check to make sure that crankshaft position sensor and pul-
ley teeth are free from any metal particles and damage.
2) Install crankshaft position sensor to cylinder block.
3) Connect connector to it securely.
4) Adjust generator belt tension, refer to Section 6B.
5) Connect negative cable to battery.

ENGINE AND EMISSION CONTROL SYSTEM 6E1-33
VEHICLE SPEED SENSOR (VSS)
INSPECTION
Check vehicle speed sensor referring to step 3 of DTC P0500
(No.16) Flow Table. If malfunction is found, replace.
REMOVAL/INSTALLATION
Refer to Section 7A.
FUEL LEVEL SENSOR (GAUGE)
INSPECTION
Refer to Section 8.
REMOVAL/INSTALLATION
Refer to Section 6C.
KNOCK SENSOR (IF EQUIPPED)
INSPECTION
Check knock sensor referring to DTC P0325 (No.17) Flow Table.
If malfunction is found, replace.
REMOVAL/INSTALLATION
Refer to Section 6A.
MAIN RELAY, FUEL PUMP RELAY AND RADIATOR
FAN RELAY NO.1
INSPECTION
1) Disconnect negative cable at battery.
2) Remove main relay (1), fuel pump relay (2) and radiator fan
control relay No.1 (3) from vehicle.
3) Check that there is no continuity between terminal “C” and
“D”. If there is continuity, replace relay.
4) Connect battery positive (+) terminal to terminal “B” of relay.
Connect battery negative (–) terminal “A” of relay.
Check continuity between terminal “C” and “D”.
If there is no continuity when relay is connected to the bat-
tery, replace relay.
“D” “B”“A”“C”
3
1
2

6E1-34 ENGINE AND EMISSION CONTROL SYSTEM
FUEL CUT OPERATION
INSPECTION
1) Warm up engine to normal operating temperature.
2) While listening to sound of injector (1) by using sound scope
(2) or such, increase engine speed to higher than 3,000 r/
min.
3) Check to make sure that sound to indicate operation of injec-
tor stops when throttle valve is closed instantly and it is
heard again when engine speed is reduced to less than
about 2,000 r/min.
RADIATOR FAN CONTROL SYSTEM
SYSTEM INSPECTION
Check system for operation referring to Flow Table B-7 in Section
6.
If radiator fan fails to operate properly, check relay, radiator fan
and electrical circuit.
RADIATOR FAN RELAY NO. 2 AND NO.3
INSPECTION
1) Disconnect negative cable at battery.
2) Remove relay(s) from connector(s).NOTE:
Before inspection, check to make sure that gear shift
lever is in neutral position (with A/T model, selector lever
in “P” range), A/C is OFF and that parking brake lever is
pulled all the way up.
WARNING:
Keep hands, tools, and clothing away from engine cool-
ing fan to help prevent personal injury. This fan is electric
and can come on whether or not the engine is running.
The fan can start automatically in response to the ECT
sensor with the ignition switch in the “ON” position.
1. Radiator fan relay No. 2
2. Radiator fan relay No. 3
1
2

ENGINE AND EMISSION CONTROL SYSTEM 6E1-35
3) Check resistance between each two terminals as in table
below.
If check results are as specified, proceed to next operation
check. If not, replace.
Radiator fan relay No.2 and No.3 resistance
4) Check that there is continuity between terminals “A” and “B”
when battery is connected to terminals “C” and “D”.
If malfunction is found, replace.
RADIATOR FAN INSPECTION
1) Check continuity between each terminals.
If there is no continuity, replace radiator fan motor.
2) Connect battery to radiator fan motor coupler as shown in
figure, then check that the radiator fan motor operates
smoothly and that fan speed varies.
If radiator fan motor does not operate smoothly, replace
motor.TERMINALS RESISTANCE
Between A and B
∞ (Infinity)
Between C and D 70 – 110
Ω at 20°C (68°F)

6E1-36 ENGINE AND EMISSION CONTROL SYSTEM
OUTPUT SIGNALS OF THROTTLE VALVE OPENING
AND ENGINE COOLANT TEMP. (VEHICLE WITH A/T
ONLY)
THROTTLE VALVE OPENING SIGNAL INSPECTION
Check throttle valve opening (throttle position) signal referring to
step 1 of DTC P1700 (No.32 or 33) Flow Table in Section 7B. If
check result is not satisfactory, check each wire harness, circuit
connections and TP sensor.
ENGINE COOLANT TEMP. SIGNAL INSPECTION
Check engine coolant temp. signal referring to step 1 of DTC
P1705 (NO.51) Flow Table in Section 7B.
If check result is not satisfactory, check each wire harness, circuit
connection and ECT sensor.
EMISSION CONTROL SYSTEM
EGR SYSTEM
SYSTEM INSPECTION (USING SUZUKI SCAN TOOL)
1) Connect SUZUKI scan tool to DLC with ignition switch OFF.
2) Turn ignition switch ON and then select “DATA LIST” mode
on scan tool.
3) Make sure that vehicle condition is as following.
Vehicle speed = 0 km/h (0 KPH)
Engine speed ≤ 3000 rpm
4) Clear DTC by using “CLEAR INFO” mode.
5) With engine idling (without depressing accelerator pedal),
open EGR valve by using “STEP EGR” mode in “MISC
TEST” menu. In this state, according as EGR valve opening
increases engine idle speed drops. If not, possible cause is
clogged EGR gas passage, stuck or faulty EGR valve, poor
performance of ECT sensor or TP sensor or DTC and/or
pending DTC is (are) stored in ECM memory.
REMOVAL
1) Disconnect negative cable at battery.
2) Remove air intake pipe.
3) Remove EGR pipe.
4) Disconnect EGR valve connector.
5) Remove EGR valve and gasket from intake manifold.
1. SUZUKI scan tool display
2. EGR valve opening (0: Close, 100: Full Open)

IGNITION SYSTEM (ELECTRONIC IGNITION SYSTEM) 6F1-1
6G
6F2
6G
6H
6K
6F1
7A
7A1
7A1
7D
7E
7F
8A
8B
8C
8D
8E
9
10
10A
10B
SECTION 6F1
IGNITION SYSTEM
(ELECTRONIC IGNITION SYSTEM)
CONTENTS
GENERAL DESCRIPTION ............................. 6F1-2
DIAGNOSIS .................................................... 6F1-3
ON-VEHICLE SERVICE ................................. 6F1-5
IGNITION SPARK TEST ............................. 6F1-5
HIGH-TENSION CORDS ............................ 6F1-5
SPARK PLUGS ........................................... 6F1-6IGNITION COIL ASSEMBLY
(INCLUDING IGNITOR) .............................. 6F1-7
CRANKSHAFT POSITION SENSOR
(CKP SENSOR) .......................................... 6F1-7
IGNITION TIMING ...................................... 6F1-8
SPECIAL TOOL ............................................. 6F1-9

WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System:
Service on and around the air bag system components or wiring must be performed only by an
authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under
“General Description” in air bag system section in order to confirm whether you are performing ser-
vice on or near the air bag system components or wiring. Please observe all WARNINGS and “Ser-
vice Precautions” under “On-Vehicle Service” in air bag system section before performing service
on or around the air bag system components or wiring. Failure to follow WARNINGS could result in
unintentional activation of the system or could render the system inoperative. Either of these two
conditions may result in severe injury.
Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system
may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).

IGNITION SYSTEM (ELECTRONIC IGNITION SYSTEM 6F1-7
6) Install spark plugs and torque them to specification.
Tightening torque
Spark plug : 25 N·m (2.5 kg-m, 18.0 lb-ft)
7) Install ignition coil assemblies referring to IGNITION COIL
ASSEMBLY in this section.
8) Install high-tension cords securely by gripping their caps.
9) Install cylinder head upper cover and air intake pipe.
IGNITION COIL ASSEMBLY
(INCLUDING IGNITOR)
Inspection
1) Disconnect negative cable at battery.
2) Remove air intake pipe and cylinder head upper cover.
3) Disconnect ignition coil coupler.
4) Disconnect high-tension cord (3) from ignition coil assembly
(2).
5) Remove ignition coil bolts (1) and then pull out ignition coil
assembly.
6) Measure secondary coil for resistance.
If resistance is out of specification, replace ignition coil
assembly.
Secondary coil resistance
: 7.6 - 10.2 k
Ω at 20°C, 68°F
7) Install ignition coil assembly.
8) Tighten ignition coil bolts, and then connect ignition coil cou-
pler.
9) Install high-tension cord to ignition coil assembly while grip-
ping its cap.
10) Install cylinder head upper cover and air intake pipe.
CRANKSHAFT POSITION SENSOR
(CKP SENSOR)
Refer to Section 6E1 for removal, inspection and installation.