2000 SUZUKI SWIFT Valve

6E2-34 ENGINE AND EMISSION CONTROL SYSTEM (SFI FOR G13)
FUEL CUT OPERATION
Inspection
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.
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 injector
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
WARNING:
Keep hands, tools, and clothing away from engine cooling
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.
Check system for operation referring to Flow Table B-8 in Section
6.
If radiator fan fails to operate properly, check relay, radiator fan and
electrical circuit.
Radiator Fan
Inspection
1) Check continuity between each two terminals.
If there is no continuity, replace radiator fan motor.

1
2
1. SUZUKI scan tool display
2. EGR valve opening (0: Close, 100: Full Open)
ENGINE AND EMISSION CONTROL SYSTEM (SFI FOR G13) 6E2-35
2) Connect battery (1) to radiator fan motor coupler (2) as shown
in figure, then check that the radiator fan motor operates
smoothly.
If radiator fan motor does not operate smoothly, replace motor.
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 KPH

Engine coolant temp.
80C

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 pas-
sage, stuck or faulty EGR valve, poor performance of ECT sen-
sor or TP sensor or DTC and / or pending DTC is (are) stored in
ECM memory.
Removal
1) Disconnect negative cable at battery.
2) Disconnect EGR valve coupler.
3) Remove EGR valve and gasket from intake manifold.

6E2-36 ENGINE AND EMISSION CONTROL SYSTEM (SFI FOR G13)
1. EGR valve
2. Connector
1
2
1. EGR valve
2. Valve
3. Valve seat3
Inspection
1) Check resistance between following terminals of EGR valve in
each pair.
Terminal
Standard resistance
A – B
C – B
F – E
D – E
20 – 24 Ω
If found faulty, replace EGR valve assy.
2) Remove carbon from EGR valve gas passage.
NOTE:
Do not use any sharp–edged tool to remove carbon.
Be careful not to damage or bend EGR valve, valve seat and
rod.
3) Inspect valve, valve seat and rod for fault, cracks, bend or other
damage.
If found faulty, replace EGR valve assembly.
Installation
Reverse removal procedure noting following.

Clean mating surface of valve and intake manifold.

Use new gasket.
EVAPORATIVE EMISSION CONTROL SYSTEM
EVAP Canister Purge Inspection
NOTE:
Before inspection, check to make sure that gear shift lever is
in neutral position (with A / T model, selector lever in “P” range)
and that parking brake lever is pulled all the way up.

ENGINE AND EMISSION CONTROL SYSTEM (SFI FOR G13) 6E2-37
1) Disconnect purge hose (1) from EVAP canister.
2) Place finger against the end of disconnected hose and check
that vacuum is not felt there when engine is cool and running at
idle speed.
3) Connect purge hose to EVAP canister and warm up engine to
normal operating temperature.
4) Disconnect purge hose from EVAP canister.
5) Also check that vacuum is felt when engine is running at idle
speed.
NOTE:
The EVAP canister purge system does not perform purging
(vacuum is not detected at the purge hose) unless the en-
gine is sufficiently warmed up and the heated oxygen sen-
sor is activated fully. Also, when the purge hose is discon-
nected in Step 4), the air is drawn into the purge line. As a
result, ECM (PCM) detects a change in the purge gas con-
centration and sometimes stops purging but this indicates
nothing abnormal.
If check result is not satisfactory, check vacuum passage, hoses,
EVAP canister purge valve, wire harness and ECM (PCM).
Vacuum Passage Inspection
Start engine and run it at idle speed. Disconnect vacuum hose (1)
from EVAP canister purge valve (2). With finger placed against
hose disconnected, check that vacuum is applied.
If it is not applied, clean vacuum passage by blowing compressed
air.
Vacuum Hose Inspection
Check hoses for connection, leakage, clog and deterioration. Re-
place as necessary.
EVAP Canister Purge Valve Inspection
Check EVAP canister purge valve referring to step 1 of DTC P0443
Flow Table.
If found malfunction, replace.

6E2-38 ENGINE AND EMISSION CONTROL SYSTEM (SFI FOR G13)
EVAP Canister Inspection
WARNING:
DO NOT SUCK nozzles on EVAP canister. Fuel vapor inside
EVAP canister is harmful.
1) Check outside of EVAP canister visually.
2) Disconnect vacuum hoses from EVAP canister.
3) Check that there should be no restriction of flow through purge
pipe (2) and air pipe (3) when air is blown (4) into tank pipe (1).
If any faulty condition is found in above inspection replace.
PCV SYSTEM
NOTE:
Be sure to check that there is no obstruction in PCV valve or
its hoses before checking IAC duty, for obstructed PCV valve
or hose hampers its accurate adjustment.
PCV Hose Inspection
Check hoses for connection, leakage, clog and deterioration.
Replace as necessary.
PCV Valve Inspection
1) Disconnect PCV valve (1) from cylinder head cover and install
plug to head cover hole.
2) Run engine at idle.
3) Place your finger over end of PCV valve (1) to check for vacuum.
If there is no vacuum, check for clogged valve. Replace as nec-
essary.
4) After checking vacuum, stop engine and remove PCV valve (1).
Shake valve and listen for the rattle of check needle inside the
valve. If valve does not the rattle, replace valve.
5) After checking, remove plug and install PCV valve (1).

ENGINE AND EMISSION CONTROL SYSTEM (SFI FOR G13) 6E2-39
09930-88530
Injector test lead09931-76011
SUZUKI scan tool (Tech 1A) kit
Mass storage cartridge
09931-76030
16 / 14 pin DLC cable1. Pressure gauge
09912-58441
2. Pressure hose
09912-58431
3. 3-way joint & hose
09912-58490
4. Checking tool set
09912-58421
4-1. Tool body & washer
4-2. Body plug
4-3. Body attachment-1
4-4. Holder
4-5. Return hose & clamp
4-6. Body attachment-2 & washer
4-7. Hose attachment-1
4-8. Hose attachment-2
1. Storage case
2. Operator’s manual
3. Tech 1A
4. DLC cable (14 / 26 pin,
09931-76040)
5. Test lead / probe
6. Power source cable
7. DLC cable adaptor
8. Self-test adaptor
SPECIAL TOOLS
TIGHTENING TORQUE SPECIFICATIONS
FasteningpartsTightening torqueFastening artsN.mkg-mlb-ft
TP sensor mounting screw20.21.5
IAC valve3.30.332.5
ECT sensor121.29.0
Heated oxygen sensor-1 and -2454.532.5
Camshaft position sensor90.96.5

7B
AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC) 7B-1
GENERAL DESCRIPTION7B- 3 . . . . . . . . . . . . . .
Electronic Shift Control System 7B- 5. . . . . . . . .
DIAGNOSIS7B-11 . . . . . . . . . . . . . . . . . . . . . . . . . . .
On-board diagnostic system 7B-11. . . . . . . . . . .
Precaution in Diagnosing Trouble 7B-12. . . . . . .
Automatic Transmission Diagnostic
Flow Table 7B-13. . . . . . . . . . . . . . . . . . . . . . . . . .
Customer problem inspection form
(example) 7B-15. . . . . . . . . . . . . . . . . . . . . . . .
Malfunction indicator lamp (MIL)
check 7B-16. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic trouble code(s) check 7B-16. . . . .
Diagnostic trouble code(s)
clearance 7B-16. . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic trouble code (DTC) table 7B-17. . .
Fail-safe table 7B-17. . . . . . . . . . . . . . . . . . . . . .
Visual inspection 7B-18. . . . . . . . . . . . . . . . . . .
Automatic Transmission Basic Check 7B-19. . .
Symptom-to-Inspection Table 7B-20. . . . . . . . . .
DTC P0705 Transmission Range
Sensor (Switch) Circuit Malfunction 7B-21. . . . DTC P0720 Output Speed Sensor
(A / T VSS) Circuit Malfunction 7B-24. . . . . . . . .
DTC P0753 Shift Solenoid-A (No.1)
Electrical 7B-26. . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0758 Shift Solenoid-B (No.2)
Electrical 7B-26. . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0751 Shift Solenoid-A (No.1)
Performance or Stuck Off 7B-28. . . . . . . . . . . . .
DTC P0756 Shift Solenoid-B (No.2)
Performance or Stuck Off 7B-28. . . . . . . . . . . . .
Table A-1 No Starting or Slipping in Any
Drive Range 7B-30. . . . . . . . . . . . . . . . . . . . . . . .
Table A-2 Gear Change Failure 7B-31. . . . . . . . .
Table A-3 Excessive Shock at Range
Selection or Gear Change 7B-31. . . . . . . . . . . .
Stall test 7B-32. . . . . . . . . . . . . . . . . . . . . . . . . . .
Line pressure test 7B-33. . . . . . . . . . . . . . . . . .
Road test 7B-35. . . . . . . . . . . . . . . . . . . . . . . . . .
Manual road test 7B-36. . . . . . . . . . . . . . . . . . .
Engine brake test 7B-36. . . . . . . . . . . . . . . . . . .
“P” range test 7B-37. . . . . . . . . . . . . . . . . . . . . .
Shift solenoid valve check 7B-37. . . . . . . . . . .
SECTION 7B
AUTOMATIC TRANSMISSION (3 A/T)
(VEHICLE WITH WU-TWC)
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 autho-
rized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under “Gener-
al Description” in air bag system section in order to confirm whether you are performing service on
or near the air bag system components or wiring. Please observe all WARNINGS and “Service Precau-
tions” 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).
NOTE:
For the descriptions (items) not found in this section, refer to the same section of the Service Manual men-
tioned in the FOREWORD of this manual.
CONTENTS

7B-2 AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC)
Table B-1 Gear Shift Failure in “D” or
“2” Range 7B-38. . . . . . . . . . . . . . . . . . . . . . . . . .
Table B-2 Gear is Shifted to 2nd Gear in
“L” Range Vehicle Does Not Move
Backward in “R” Range 7B-38. . . . . . . . . . . . . .
Transmission range sensor check 7B-39. . . . Output shaft speed sensor check 7B-39. . . . .
Shift solenoid valve circuit check 7B-40. . . . . .
Throttle position sensor check 7B-41. . . . . . . .
TIGHTENING TORQUE
SPECIFICATIONS7B-42 . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS7B-42 . . . . . . . . . . . . . . . . . . . . . .