ECU SUZUKI SWIFT 2000 1.G SF310 Service Repair Manual

6F1-4 IGNITION SYSTEM (SFI FOR G13)
IGNITION SYSTEM DIAGNOSTIC FLOW TABLE
STEPACTIONYESNO
1
Was “ENGINE DIAG. FLOW TABLE” performed?Go to Step 2.Go to “ENGINE DIAG.
FLOW TABLE” in
section 6.
2
Ignition Spark Test
1) Check all spark plugs for condition and type
referring to “Spark Plugs” section.
2) If OK, perform ignition spark test, referring to
“Ignition Spark Test” section.
Is spark emitted from all spark plugs?Go to Step 11.Go to Step 3.
3
Diagnostic Trouble Code (DTC) Check
Is DTC stored in ECM (PCM)?Go to applicable DTC
Diag. Flow Table in
section 6.Go to Step 4.
4
Electrical Connection Check
1) Check ignition coil assemblies and high-tension
cords for electrical connection.
Are they connected securely?Go to Step 5.Connect securely.
5
High-Tension Cords Check
1) Check high-tension cord for resistance referring
to “High-Tension Cords” section.
Is check result satisfactory?Go to Step 6.Replace high-tension
cord(s).
6
Ignition Coil Assembly Power Supply and Ground
Circuit Check
1) Check ignition coil assembly power supply and
ground circuits for open and short.
Are circuits in good condition?Go to Step 7.Repair or replace.
7
Ignition Coil Assembly Check
1) Check ignition coil for resistance referring to
“Ignition Coil Assembly” section.
Is check result satisfactory?Go to Step 8.Replace ignition coil
assembly.
8
Crankshaft Position (CKP) Sensor Check
1) Check crankshaft position sensor referring to
Step 3 and 4 of DTC P0335 Diag. Flow Table in
section 6.
Is check result satisfactory?Go to Step 9.Tighten CKP sensor
bolt, replace CKP
sensor or crankshaft
timing belt pulley.
9
Ignition Trigger Signal Circuit Check
1) Check ignition trigger signal wire for open, short
and poor connection.
Is circuit in good condition?Go to Step 10.Repair or replace.
10
A Known-good Ignition Coil Assembly Substitution
1) Substitute a known-good ignition coil assembly
and then repeat Step 2.
Is check result of Step 2 satisfactory?Go to Step 11.Substitute a known-
good ECM (PCM) and
then repeat Step 2.
11
Ignition Timing Check
1) Check initial ignition timing and ignition timing
advance referring to “Ignition Timing” section.
Is check result satisfactory?System is in good
condition.Check CKP sensor,
crankshaft timing belt
pulley (signal rotor)
and input signals
related to this system.

“a”
6F1-6 IGNITION SYSTEM (SFI FOR G13)
5) Install high-tension cords (1) to spark plugs and ignition coil as-
semblies (2) while gripping each cap.
CAUTION:

Never attempt to use metal conductor high-tension
cords as replacing parts.

Insert each cap portion fully when installing high-ten-
sion cords.
SPARK PLUGS
1) Pull out high-tension cords by gripping their caps and then re-
move ignition coil assemblies referring to IGNITION COIL AS-
SEMBLY in this section.
2) Remove spark plugs.
3) Inspect them for:

Electrode wear

Carbon deposits

Insulator damage
4) If any abnormality is found, adjust air gap, clean with spark plug
cleaner or replace them with specified new plugs.
Spark plug air gap “a”: 1.0 – 1.1 mm ( 0.040 – 0.043 in.)
Spark plug type : NGK BKR6E-11
: DENSO K20PR-U11
5) Install spark plugs and torque them to specification.
Tightening Torque for spark plug
28 N.m (2.8 kg-m, 20.0 lb-ft)
6) Install ignition coil assemblies referring to IGNITION COIL AS-
SEMBLY in this section.
7) Install high-tension cords securely by gripping their caps.
IGNITION COIL ASSEMBLY
(INCLUDING IGNITOR)
Inspection
1) Disconnect negative cable at battery.
2) Disconnect ignition coil coupler.
3) Disconnect high-tension cord (3) from ignition coil assembly (2).
4) Remove ignition coil bolts (1) and then pull out ignition coil as-
sembly.

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
1. Ignition key with built-in transponder 1. Data link connector (DLC)
8G-16 IMMOBILIZER CONTROL SYSTEM
HOW TO REGISTER IGNITION KEY
Register the ignition key with a built-in transponder in Immobilizer
Control Module by using the following procedure.
1) Prepare Suzuki scan tool (TECH 1A kit and cartridge for immobi-
lizer control system).
2) With ignition switch OFF, connect Suzuki scan tool to data link
connector (DLC) located on underside of instrument panel at
driver’s seat side.
Special Tool
(A): 09931-76011 (Tech 1A)
(B): Immobilizer cartridge
(C): 09931-76030 (16 / 14-pin DLC cable)
NOTE:
For operation procedure of Suzuki scan tool, refer to Suzuki
scan tool operator’s manual.
3) Prepare ignition key with a built-in transponder. And then turn
ignition switch ON by using it.
4) Number of Transponder codes for ignition key with a built-in
transponder that can be registered in Immobilizer Control Mod-
ule is limited to 4. If needed, clear all Transponder codes for igni-
tion key with a built-in transponder that have been registered in
Immobilizer Control Module by executing the “CLR. TRANS
COD (CLEAR TP CODE)” command in the SELECT MODE
menu by using Suzuki scan tool.
NOTE:
When “CLR. TRANS COD (CLEAR TP CODE)” command is
executed with the malfunction indicator lamp (the lamp for
vehicles equipped with the monitor coupler) ON or the im-
mobilizer indicator lamp (the lamp for vehicles equipped
with the monitor coupler) ON, it remains ON even after
execution of that command is over. It will start flashing
when the ignition switch is turned OFF once and then
turned ON after some seconds.
5) Using Suzuki scan tool, register Transponder code in Immobiliz-
er Control Module by executing “ENT. TRANS COD (ENT. TP
CODE)” command in SELECT MODE menu.
6) [Vehicle equipped with monitor coupler]
Make sure that malfunction indicator lamp lights when ignition
switch is turned OFF once and then ON.
[Vehicle not equipped with monitor coupler]
Make sure that immobilizer indicator lamp lights when ignition
switch is turned OFF once and then ON.

IMMOBILIZER CONTROL SYSTEM 8G-17
7) If any other Transponder code for ignition key with a built-in
transponder needs to be registered, repeat above Steps 3), 5)
and 6).
NOTE:

Up to 4 Transponder codes for ignition key with a built-in
transponder can be registered.

It is not possible to register the same Transponder code
for ignition key with a built-in transponder as the one al-
ready registered in Immobilizer Control Module.
PROCEDURE AFTER IMMOBILIZER
CONTROL MODULE REPLACEMENT
When Immobilizer Control Module was replaced, including when
replaced because rechecking by using a known-good Immobilizer
Control Module was necessary during trouble diagnosis, register
Transponder code and ECM / Immobilizer Control Module code in
Immobilizer Control Module and ECM / Immobilizer Control Module
code in ECM by performing following procedure.
1) Perform Steps 1) and 2) described in “How to register ignition
key” section.
2) Prepare ignition key with a built-in transponder. And then turn
ignition switch ON by using it.
3) Using Suzuki scan tool, clear all transponder codes registered
in Immobilizer Control Module by executing “CLR. TRANS COD
(CLEAR TP CODE)” command in SELECT MODE menu.
NOTE:
When “CLR. TRANS COD (CLEAR TP CODE)” command is
executed with the malfunction indicator lamp (the lamp for
vehicles equipped with the monitor coupler) ON or the im-
mobilizer indicator lamp (the lamp for vehicles equipped
with the monitor coupler) ON, it remains ON even after
execution of that command is over. It will start flashing
when the ignition switch is turned OFF once and then
turned ON after some seconds.
4) Using Suzuki scan tool, register Transponder code in Immobiliz-
er Control Module by executing “ENT. TRANS COD (ENT. TP
CODE)” command in SELECT MODE menu.
5) Using Suzuki scan tool, register ECM / Immobilizer Control Mod-
ule code in both Immobilizer Control Module and ECM by
executing “RECORD ECU (RECORD ECM / PCM / ICM)” com-
mand in SELECT MODE menu.
6) [Vehicle equipped with monitor coupler]
Make sure that malfunction indicator lamp lights when ignition
switch is turned OFF once and then ON.
[Vehicle not equipped with monitor coupler]
Make sure that immobilizer indicator lamp lights when ignition
switch is turned OFF once and then ON.
7) If any other Transponder code for ignition key with a built-in trans-
ponder needs to be registered, repeat above Steps 2), 4) and 6).
NOTE:

Up to 4 Transponder codes for ignition key with a built-in
transponder can be registered.

It is not possible to register the same Transponder code
for ignition key with a built-in transponder as the one al-
ready registered in Immobilizer Control Module.

8G-18 IMMOBILIZER CONTROL SYSTEM
09931-76030
16 / 14 pin DLC cable
09931-76011
Suzuki scan tool (Tech 1A kit)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 adapter
8. Self-test adapter
Immobilizer cartridge of
version 1.1 or more
NOTE:
Use this cable only with im-
mobilizer cartridge of ver-
sion 1.1 or more.
Use of this cable with 96
immobilizer cartridge will
disable 96 immobilizer car-
tridge from operating prop-
erly.
Mass storage cartridge of
version 1.5 or more
PROCEDURE AFTER ECM
REPLACEMENT
When ECM was replaced, including when replaced because re-
checking by using a known-good ECM was necessary during
trouble diagnosis, register ECM/Immobilizer Control Module code
in ECM by performing following procedure.
1) Perform Steps 1) and 2) described in “How to register ignition
key” section. And then turn ignition switch ON.
2) Using Suzuki scan tool, register ECM/Immobilizer Control Module
code in ECM by executing “RECORD ECU (RECORD ECM / Im-
mobilizer Control Module)” command in SELECT MODE menu.
NOTE:
For operation procedure of Suzuki scan tool, refer to Suzuki
scan tool operator’s manual.
3) [Vehicle equipped with monitor coupler]
Make sure that malfunction indicator lamp lights when ignition
switch is turned OFF once and then ON.
[Vehicle not equipped with monitor coupler]
Make sure that immobilizer indicator lamp lights when ignition
switch is turned OFF once and then ON.
SPECIAL TOOLS