2000 SUZUKI SWIFT instrument

ENGINE GENERAL INFORMATION AND DIAGNOSIS (TBI FOR G10) 6-13
MALFUNCTION INDICATOR LAMP (MIL)
CHECK
1) Turn ON ignition switch (but the engine at stop) and check that
MIL lights.
If MIL does not light up (or MIL dims), go to “Diagnostic Flow
Table A-1” for troubleshooting.
2) Start engine and check that MIL turns OFF.
If MIL remains ON and no DTC is stored in ECM (PCM), go to
“Diagnostic Flow Table A-2” for troubleshooting.
DIAGNOSTIC TROUBLE CODE (DTC) CHECK
1) Prepare SUZUKI scan tool (Tech-1) or generic scan tool.
2) With ignition switch OFF, connect it to data link connector (DLC)
(1) located on underside of instrument panel at driver’s seat side.
Special Tool:
(A): SUZUKI scan tool
(B): Mass storage cartridge
(C): 16 / 14 pin DLC cable
3) Turn ignition switch ON and confirm that MIL lights.
4) Read DTC, pending DTC and freeze frame data according to
instructions displayed on scan tool and print it or write it down.
Refer to scan tool operator’s manual for further details.
If communication between scan tool and ECM (PCM) is not pos-
sible, check if scan tool is communicable by connecting it to
ECM (PCM) in another vehicle. If communication is possible in
this case, scan tool is in good condition. Then check data link
connector and serial data line (circuit) in the vehicle with which
communication was not possible.
5) After completing the check, turn ignition switch off and discon-
nect scan tool from data link connector.

ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI FOR G13) 6-1-13
MALFUNCTION INDICATOR LAMP (MIL)
CHECK
1) Turn ON ignition switch (but the engine at stop) and check that
MIL lights.
If MIL does not light up (or MIL dims), go to “Diagnostic Flow
Table A-1” for troubleshooting.
2) Start engine and check that MIL turns OFF.
If MIL remains ON and no DTC is stored in ECM (PCM), go to
“Diagnostic Flow Table A-2” for troubleshooting.
DIAGNOSTIC TROUBLE CODE (DTC) CHECK
1) Prepare SUZUKI scan tool (Tech-1).
2) With ignition switch OFF, connect it to data link connector (DLC)
(1) located on underside of instrument panel at driver’s seat side.
Special Tool:
(A): SUZUKI scan tool
(B): Mass storage cartridge
(C): 16 / 14 pin DLC cable
3) Turn ignition switch ON and confirm that MIL lights.
4) Read DTC, pending DTC and freeze frame data according to
instructions displayed on scan tool and print it or write it down.
Refer to scan tool operator’s manual for further details.
If communication between scan tool and ECM (PCM) is not pos-
sible, check if scan tool is communicable by connecting it to
ECM (PCM) in another vehicle. If communication is possible in
this case, scan tool is in good condition. Then check data link
connector and serial data line (circuit) in the vehicle with which
communication was not possible.
5) After completing the check, turn ignition switch off and discon-
nect scan tool from data link connector.

6B-4 ENGINE COOLING
COOLANT (WATER) TEMP. GAUGE
The coolant temp. gauge is included in engine coolant temp. (ECT)
sensor (1). This gauge activates a temp. meter in the instrument
cluster.
DIAGNOSIS
ConditionPossible CauseCorrection
Engine overheatsLoose or broken water pump belt
Not enough coolant
Faulty thermostat
Faulty water pump
Dirty or bent radiator fins
Coolant leakage on cooling system
Defective cooling fan motor
Plugged radiator
Faulty radiator cap
Maladjusted ignition timing
Dragging brakes
Slipping clutchAdjust or replace.
Check coolant level and add as
necessary.
Replace.
Replace.
Clean or remedy.
Repair.
Check and replace as
necessary.
Check and replace radiator as
necessary.
Replace.
Adjust.
Adjust brake.
Adjust or replace.

ENGINE AND EMISSION CONTROL SYSTEM (TBI FOR G10) 6E1-17
1. ECM
2. Instrument panel
3. Steering wheel
1. Injector wire
2. Screws
1. Stay
3) Make sure that injector wire O-ring is free from any damage and
deterioration, and apply thin coat of spindle oil or gasoline to O-
ring.
Install injector wire and tighten new wire screw to specified
torque.
Tightening Torque
(a): 3.5 N
.m (0.35 kg-m, 2.5 lb-ft)
4) Connect battery negative cable at battery.
5) With engine “OFF” and ignition switch “ON”, check for fuel leaks.
6) Install air cleaner mounting stay as shown left.
7) Install air cleaner assembly referring to Section 6A.
ELECTRONIC CONTROL SYSTEM
ENGINE CONTROL MODULE (ECM)
CAUTION:
As ECM consists of precision parts, be careful not to ex-
pose it to excessive shock.
REMOVAL
1) Disconnect battery negative cable at battery.
2) Lower fuse box after removing bolt.
3) Disconnect couplers from ECM while releasing coupler lock.
4) Remove ECM from body.
INSTALLATION
1) Install ECM to body.
2) Connect couplers to ECM securely.
3) Install fuse box and tighten its bolt.
4) Connect battery negative cable at battery.

6E1-24 ENGINE AND EMISSION CONTROL SYSTEM (TBI FOR G10)
VEHICLE SPEED SENSOR (VSS) For M / T
INSPECTION
1) Disconnect negative cable at battery.
2) Remove combination meter from instrument panel.
3) Connect ohmmeter between “VSS” terminal (2) and “GND” ter-
minal (3) of combination meter and turn cable joint (1) of
speedometer with a screwdriver. Ohmmeter indicator should
move back and forth between 0 (zero) and ∞ (infinity) 4 times
while cable joint is turned one full revolution.
Replace speedometer if check result is not satisfactory.
4) Install combination meter to instrument panel.
5) Connect negative cable at battery.
VEHICLE SPEED SENSOR (VSS) For A / T
INSPECTION
Vehicle speed sensor (1) itself can be checked on its resistance by
disconnecting connector.
NOTE:

Function of vehicle speed sensor can be checked by mea-
suring generated pulse as voltage.

For its measurement, use an analog type voltmeter while
spinning wheels on lift and with selector lever in D position.
Vehicle speed sensor specifications
Coil resistance100 – 300 Ω
Output voltage at 40 km / h (25 mile / h)approximately 1 V
FUEL LEVEL SENSOR (GAUGE)
Refer to Section 8.

1. PCM
2. Instrument panel
TP sensor
Transmission range sensor
Output shaft speed sensor
(A / T VSS)
Shift solenoid-B
(2nd brake solenoid valve)
Shift solenoid-A
(Direct clutch solenoid valve)PCM
1. Throttle position sensor
2. Throttle body
A: Ground
3. Ground terminal
4. Reference voltage
terminal
5. Output voltage terminal
6. TP sensor
C: Output voltage
(opening angle signal)
D: Power supply from ECM
(reference voltage)
[G10 engine model]
[G13 engine model]
AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC) 7B-7
POWERTRAIN CONTROL MODULE (PCM)
The powertrain control module controls the shift solenoid B (2nd
brake solenoid valve) and the shift solenoid A (direct clutch sole-
noid valve) by sending electric signals to them so as to attain auto-
matic gear shift between the 1st and 2nd gears, and the 2nd and
3rd gears. Equipped as PCM sensed parameters are the throttle
position sensor, transmission range switch and vehicle speed sen-
sor. These switch and sensors sense the throttle valve opening, se-
lector lever’s position and vehicle speed, and send those signals to
the powertrain control module. Then, the powertrain control module
opens and closes valves of the above solenoids according to these
signals. The powertrain control module is installed to the underside
of the instrument panel at the driver’s seat side.
GEAR SHIFT CONTROL SYSTEM
THROTTLE POSITION SENSOR (TP sensor)
The throttle position sensor consisting of a potentiometer is con-
nected to the throttle valve shaft.
Throttle valve opening signal (output voltage) is transmitted from
throttle position sensor to PCM as voltage signal. PCM uses it as
one of the signals to control transmission gear shift.

1. Malfunction indicator lamp (MIL)
2. Data link connector (DLC)
3. SUZUKI scan tool (Tech-1)
AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC) 7B-11
DIAGNOSIS
This vehicle is equipped with an electronic transmission control system, which control the automatic shift up and
shift down timing, etc. suitably to vehicle driving conditions.
PCM (ECM) has an On-Board Diagnosis System which detects a malfunction in this system and abnormality of
those parts that influence the engine exhaust emission.
When diagnosing a trouble in transmission including this system, be sure to have full understanding of the outline
of “ON-BOARD DIAGNOSTIC SYSTEM” and each item in “PRECAUTION IN DIAGNOSING TROUBLE” and
execute diagnosis according to “AUTOMATIC TRANSMISSION DIAGNOSTIC FLOW TABLE” given below to ob-
tain correct result smoothly.
ON-BOARD DIAGNOSTIC SYSTEM
For automatic transmission control system, PCM (ECM) has follow-
ing functions. Refer to Section 6 or 6-1 for details.

When ignition switch is turned ON with engine at a stop malfunc-
tion indicator lamp (MIL) turns ON to check bulb of MIL.

When PCM detects a malfunction in A / T control system (and / or
a malfunction which gives an adverse effect to vehicle emission)
while engine is running, it makes malfunction indicator lamp in
meter cluster of instrument panel turn ON and stores malfunction
area (DTC) in its memory.
If it detects that continuously 3 driving cycles are normal after de-
tecting a malfunction, however, it makes MIL turn OFF although
DTC stored in its memory will remain.

It is possible to communicate with PCM through data link connect-
er (DLC) by using SUZUKI scan tool (Tech-1).
(Diagnostic information can be checked and erased by using a
scan tool)
2 Driving Cycle Detection Logic
Refer to Section 6 or 6-1 for details.
Freeze Frame Data
Refer to Section 6 or 6-1 for details.

1. Malfunction indicator
lamp (MIL)
1. Data link connector (DLC)
1. Data link connector (DLC)
7B-16 AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC)
MALFUNCTION INDICATOR LAMP (MIL) CHECK
Refer to the same item in Section 6 or 6-1 for checking procedure.
DIAGNOSTIC TROUBLE CODE(S) CHECK
1) Turn ignition switch OFF.
2) After setting cartridge to SUZUKI scan tool, connect it to data link
connector (DLC) located on underside of instrument panel at
driver’s seat side.
Special Tool
(A): 09931-76011 (SUZUKI scan tool)
(B): Mass storage cartridge
(C): 09931-76030 (16 / 14 pin DLC cable)
3) Turn ignition switch ON.
4) Read DTC according to instructions displayed on SUZUKI scan
tool and print it or write it down. Refer to SUZUKI scan tool opera-
tor’s manual for further details.
5) After completing the check, turn ignition switch OFF and discon-
nect SUZUKI scan tool from data link connector (DLC).
DIAGNOSTIC TROUBLE CODE(S) CLEARANCE
1) Turn ignition switch OFF.
2) After setting cartridge to SUZUKI scan tool, connect it to data link
connector (DLC) located on underside of instrument panel at
driver’s seat side.
Special Tool
(A): 09931-76011 (SUZUKI scan tool)
(B): Mass storage cartridge
(C): 09931-76030 (16 / 14 pin DLC cable)
3) Turn ignition switch ON.
4) Erase DTC according to instructions displayed on SUZUKI scan
tool. Refer to SUZUKI scan tool operator’s manual for further de-
tails.
5) After completing the check, turn ignition switch OFF and discon-
nect SUZUKI scan tool from data link connector (DLC).