Diagnostic Information And Procedures; Ignition System Symptom Diagnosis; Ignition System Check; Ignition Spark Test - Suzuki Liana RH413 Service Manual

1H-4 Ignition System:

Ignition System Symptom Diagnosis

Condition
Engine cranks, but will
not start or hard to start
(No spark)
Poor fuel economy or
engine performance

Ignition System Check

Step
1 Was "Engine and Emission Control System Check"
performed?
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
Spark Test".
Is spark emitted from all spark plugs?
3 DTC check
1) Perform DTC Check referring to "DTC Check in Section
1A".
Is DTC stored in ECM?
4 Electrical connection check
1) Check ignition coil assemblies and high-tension cords
for electrical connection.
Are they connected securely?
5 High-tension cords check
1) Check high-tension cord for resistance referring to
"High-Tension Cord Inspection".
Is check result satisfactory?
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?
7 Ignition coil assembly check
1) Check ignition coil for resistance referring to "Ignition
Coil Assembly (Including Igniter) Inspection".
Is check result satisfactory?

Diagnostic Information and Procedures

Possible cause
Blown fuse for ignition coil
Loose connection or disconnection of
lead wire or high-tension cord(s)
Faulty high-tension cord(s)
Faulty spark plug(s)
Faulty ignition coil
Faulty CKP sensor or CKP sensor plate Clean, tighten or replace.
Faulty ECM
Incorrect ignition timing
Faulty spark plug(s) or high-tension
cord(s)
Faulty ignition coil assembly
Faulty CKP sensor or CKP sensor plate Replace.
Faulty ECM
Action
Correction / Reference Item
Replace.
Connect securely.
Replace.
Adjust, clean or replace.
Replace ignition coil assembly.
Replace.
Check related sensors and CKP sensor plate.
Adjust, clean or replace.
Replace.
Replace.
Yes
Go to Step 2.
Go to Step 11.
Go to applicable "DTC
diag. flow".
Go to Step 5.
Go to Step 6.
Go to Step 7.
Go to Step 8.
S3RH0A1804001
S3RH0A1804002
No
Go to "Engine and
Emission Control
System Check in
Section 1A".
Go to Step 3.
Go to Step 4.
Connect securely.
Replace high-tension
cord(s).
Repair or replace.
Replace ignition coil
assembly.