Downloaded from www.Manualslib.com manuals search engine Ignition System: 1H-3
Component Location
Ignition System Components LocationS7RS0B1803001
NOTE
The figure shows left-hand steering vehicle. For right-hand steering vehicle, parts with (*) are installed
at the opposite side.
16*
1
2
14
7
5 12 11
410
6
89
3 13*
15
17
I6RS0C180001-01
1. ECM 7. ECT sensor13. Data link connector
2. Ignition coil assembly for No.1 and No.4 spark plugs 8. MAF and IAT sensor 14. Battery fuse box
3. Ignition coil assembly for No.2 and No.3 spark plugs 9. Electric throttle body 15. Relay box
4. CMP sensor 10. Wheel speed sensor (VSS) 16. Junction block assembly
5. CKP sensor 11. High-tension cords
6. MAP sensor 12. Knock sensor
Downloaded from www.Manualslib.com manuals search engine 1H-4 Ignition System:
Diagnostic Information and Procedures
Ignition System Symptom DiagnosisS7RS0B1804001
Reference Waveform of Ignition SystemS7RS0B1804002
Refer to “Reference waveform No.5”, “Reference waveform No.6” and “Reference waveform No.7” under “Inspection
of ECM and Its Circuits in Section 1A” for waveform of Ignition trigger signal.
Ignition System CheckS7RS0B1804003
Condition Possible cause Correction / Reference Item
Engine cranks, but will
not start or hard to start
(No spark) Blown fuse for ignition coil
Replace.
Loose connection or disconnection of
lead wire or high-tension cord(s) Connect securely.
Faulty high-tension cord(s) Replace.
Faulty spark plug(s) Replace.
Faulty ignition coil Replace ignition coil assembly.
Faulty CKP sensor or CKP sensor plate Clean, tighten or replace.
Faulty CMP sensor or sensor rotor tooth
of camshaft Clean, tighten or replace.
Faulty ECM Replace.
Poor fuel economy or
engine performance Incorrect ignition timing
Check related sensors and CKP sensor plate.
Faulty spark plug(s) or high-tension
cord(s) Adjust, clean or replace.
Faulty ignition coil assembly Replace.
Faulty CKP sensor or CKP sensor plate Clean, tighten or replace.
Faulty CMP sensor or sensor rotor tooth
of camshaft Clean, tighten or replace.
Faulty knock sensor Replace.
Faulty ECM Replace.
StepAction YesNo
1 Was “Engine and Emission Control System Check”
performed? Go to Step 2.
Go to “Engine and
Emission Control
System Check in
Section 1A”.
2 Ignition spark test
1) Check all spark plugs for condition and type referring to
“Spark Plug Inspection”.
2) If OK, perform ignition spark test referring to “Ignition Spar k Tes t”.
Is spark emitted from all spark plugs? Go to Step 13. Go to Step 3.
3 DTC check
1) Perform DTC check referring to “DTC Check in Section
1A”.
Is DTC stored in ECM? Go to applicable DTC
diag. flow.
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 Cord Inspection”.
Is check result satisfactory? Go to Step 6.
Replace high-tension
cord(s).
Downloaded from www.Manualslib.com manuals search engine Ignition System: 1H-5
6Ignition 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 (Including ignitor) Inspection”.
Is check result satisfactory? Go to Step 8.
Replace ignition coil
assembly.
8 CKP sensor check
1) Check CKP sensor referring to “CKP Sensor Inspection
in Section 1C”.
Is check result satisfactory? Go to Step 9.
Tighten CKP sensor
bolt, replace CKP
sensor or CKP sensor
plate.
9 CMP sensor check
1) Check CMP sensor referring to “Camshaft Position
(CMP) Sensor Inspection in Section 1C”.
Is check result satisfactory? Go to Step 10. Tighten CMP sensor
bolt, replace CMP
sensor or intake
camshaft.
10 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 11. Repair or replace.
11 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 12. Substitute a known-
good ECM and then
repeat Step 2.
12 Knock sensor check
1) Confirm that knock sensor circuit is in good condition
referring to “DTC P0327 / P0328: Knock Sensor 1 Circuit
Low / High in Section 1A”.
2) Check oscilloscope waveform of knock sensor signal
referring to “Reference waveform No.25” and
“Reference waveform No.26” under “Inspection of ECM
and Its Circuits in Section 1A”.
Is check result satisfactory? Go to Step 13. Substitute a known-
good knock sensor and
recheck.
13 Ignition timing check
1) Check initial ignition timing and ignition timing advance
referring to “Ignition Timing Inspection”.
Is check result satisfactory? System is in good
condition.
Check CMP sensor,
CMP sensor rotor tooth
of camshaft, CKP
sensor, CKP sensor
plate and/or input
signals related to this
system.
Step
Action YesNo
Downloaded from www.Manualslib.com manuals search engine Ignition System: 1H-9
6) Set timing light (1) to high-tension cord for No.1 cylinder and check that ignition timing is within
specification.
Initial ignition timing
Fixed with SUZUKI scan tool: 5 ± 3° BTDC (at
specified idle speed)
Ignition order
1 – 3 – 4 – 2
Special tool
(A): 09930–76420 7) If ignition timing is out
of specification, check the
followings.
• CKP sensor
• CKP sensor plate
• CMP sensor
• CMP sensor rotor tooth of camshaft
• VSS
• Timing chain cover installation
8) After checking initial igniti on timing, release ignition
timing fixation by using scan tool.
9) With engine idling (throttl e opening at closed position
and vehicle stopped), check that ignition timing is
about 3 ° – 13° BTDC. (Constant variation within a
few degrees from 3 ° – 13° BTDC indicates no
abnormality but proves operation of electronic timing
control system.) Also, check that increasing engine
speed advances ignition timing.
If the check results are not satisfactory, check CKP
sensor and ECM.
Specifications
Tightening Torque SpecificationsS7RS0B1807001
Reference:
For the tightening torque of fastener not specified in this section, refer to “Fasteners Information in Section 0A”.
Special Tools and Equipment
Special ToolS7RS0B1808001
1, (A)10
0I3RB0A180004-01
Fastening part Tightening torque
Note
N ⋅mkgf-mlb-ft
Spark plug 25 2.5 18.0 )
Ignition coil bolt 10 1.0 7.5 )
09930–76420SUZUKI scan tool
Timing-light (dry cell type) —
) This kit includes following
items. 1. Tech 2, 2. PCMCIA
card, 3. DLC cable, 4. SAE
16/19 adapter, 5. Cigarette
cable, 6. DLC loop back
adapter, 7. Battery power
cable, 8. RS232 cable, 9.
RS232 adapter, 10. RS232
loop back connector, 11.
Storage case, 12. )
Downloaded from www.Manualslib.com manuals search engine 5A-34 Automatic Transmission/Transaxle:
A/T Symptom DiagnosisS7RS0B5104018
Trouble Diagnosis 1
Electrical repair
Condition Possible cause Correction / Reference Item
Excessive shift shock Shift solenoid valve-A and/or -B circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Timing solenoid valve circuit faulty only
when N → D or 3 ↔ 4 shifting Inspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Input shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission fluid temperature sensor
circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “Electric Throttle Body Assembly
On-Vehicle Inspection in Section 1C”. If NG,
repair.
Crankshaft position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “DTC P0335: Crankshaft Position
(CKP) Sensor “A” Circuit in Section 1A”. If NG,
repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
No gear shift as 3rd gear Shift solenoid valve-A and/or -B circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Timing solenoid valve circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
TCM Substitute a known-good TCM and recheck.
Poor 1
→ 2 shift Shift solenoid valve-B circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission range sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “Electric Throttle Body Assembly
On-Vehicle Inspection in Section 1C”. If NG,
repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-35
Poor 2 → 3 shiftShift solenoid valve-A circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission range sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “Electric Throttle Body Assembly
On-Vehicle Inspection in Section 1C”. If NG,
repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Poor 3
→ 4 shift Shift solenoid valve-B circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Timing solenoid valve circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Input shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission range sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission fluid temperature sensor
circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “Electric Throttle Body Assembly
On-Vehicle Inspection in Section 1C”. If NG,
repair.
Engine coolant temperature sensor
circuit faulty Inspect circuit for open, short and intermittent
referring to “DTC P0117: Engine Coolant
Temperature Circuit Low
in Section 1A” and/or
“DTC P0118: Engine Coolant Temperature
Circuit High in Section 1A”. If NG, repair.
Crankshaft position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “DTC P0335: Crankshaft Position
(CKP) Sensor “A” Circuit in Section 1A”. If NG,
repair.
“3” position switch circuit faulty Refer to “No Gear Shift to 4th gear”.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Condition Possible cause Correction / Reference Item
Downloaded from www.Manualslib.com manuals search engine 5A-38 Automatic Transmission/Transaxle:
Trouble Diagnosis 2
On-vehicle repair
Condition Possible cause Correction / Reference Item
Unable to run in all range Faulty valve body component Replace valve body assembly.
Excessive shift shock Engine abnormal condition Inspect and repair engine.
Malfunction of shift solenoid valve-A
and/or -B Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of timing solenoid valve only
when N → D or 3 ↔ 4 shifting Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
Malfunction of brake light switch except
N → D or N → R shifting Inspect referring to “Brake Light Switch
Inspection in Section 9B”. If NG, replace.
Malfunction of crankshaft position
sensor Inspect referring to “CKP Sensor Inspection in
Section 1C”. If NG, replace.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Faulty valve body component Replace valve body assembly.
Poor 1
→ 2 shift Malfunction of shift solenoid valve-B Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Faulty valve body component Replace valve body assembly.
Poor 2
→ 3 shift Malfunction of shift solenoid valve-A Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Faulty valve body component Replace valve body assembly.
Downloaded from www.Manualslib.com manuals search engine 9A-11 Wiring Systems:
C: Engine harnessNo./Color Connective position No./Color Connective positionC01/GRY IAC valve C22/- Generator #2
C02/GRY IG Coil #1 C23/BLK Starting motor #1
C03/GRY IG Coil #2 C24/- Starting motor #2
C04/GRY Fuel injector #1 C25/GR Y VSS (Vehicle speed sensor)
C05/GRY Fuel injector #2 C26/GRY Knock sensor
C06/GRY Fuel injector #3 C27/BLU (A/
T) Input shaft speed sensor
C07/GRY Fuel injector #4 C28/GRY
(A/T) Trans axle range sensor
C08/BLK or GRY CMP sensor C29/GRY
(A/T) Shift solenoid
C09/BLK ECT sensor C30/BLK
(M/T) Back-up light switch
C10/GRY EGR stepper motor C31/- Main fuse box C11/BLK Throttle position sensor C32/GRY
(IF EQPD) Current sensor
C12/BLK MAP sensor C33/- Main fuse box
C13/BLK MAF sensor C34/N (A/T) TCM
C14/BLK EVAP canister purge valve C35/N (A/T) TCM
C15/GRY Heated oxygen sensor #1 C36/N Main harness (To E24)
C16/GRN Heated oxygen sensor #2 C37/GRY ECM C17/BLK A/C compressor C38/- Weld splice C18/N Oil pressure switch C39/- Weld splice
C19/BLU VVT solenoid C40/- Weld splice
C20/GRY CKP sensor C41/- Weld splice
C21/GRY or BLK Generator #1