Ignition System: 1H-4
Component Location
Ignition System Components Location
Z9J0111803001
Refer to “Engine Control System Components / Engine Electrical Device Location” in Section 1A (Page 1A-15).
Diagnostic Information and Procedures
Ignition System Symptom Diagnosis
Z9J0111804001
Condition Possible cause Correction / Reference Item
Engine cranks, but will
not start or weak spark.
(No spark)
Blown fuse for ignition system. Replace.
Loose connection or disconnection of
lead wire.
Connect securely.
Faulty spark plug(s). Replace.
Faulty ignition coil. Replace.
Faulty CKP sensor. Replace.
Faulty CMP sensor or sensor trigger
vane of camshaft.
Replace.
Faulty ECM. Replace.
Spark plug is wet or
quickly becomes fouled
with carbon.
Incorrect gasoline. Change.
Incorrect spark plug. Replace.
Spark plug quickly
become fouled with oil or
carbon.
Worn piston ring. Replace.
Worn piston. Replace.
Worn cylinder. Replace.
Excessive valve stem to valve guide
clearance.
Replace.
Worn valve stem seal. Replace.
Spark plug electrodes
overheat or burn.
Incorrect spark plug. Change.
Overheated engine. Tune-up.
Loose spark plug. Tighten.
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