Electronic Ignition System

All models use a distributorless ignition system. See Fig 1 -Fig 4 . Aerio, Esteem 1.8L, Grand Vitara and XL-7 engines use an ignition coil and igniter assembly mounted on top of each spark plug. All other models use a waste-spark ignition with 2 ignition coil and igniter assemblies that fire 2 spark plugs simultaneously.

ECM relies on signals from Camshaft Position (CMP) sensor, Throttle Position (TP) sensor, Electronically Controlled Transmission (ECT) sensor and Mass Air Flow (MAF) sensor to control ignition spark. See INPUT DEVICES  . Spark is achieved by ECM triggering igniter and in turn igniter grounding and opening ignition coil circuit.

Fig 1: Identifying Electronic Ignition System Components (Aerio)

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Fig 2: Identifying Electronic Ignition System Components (Esteem 1.8L)

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Fig 3: Identifying Electronic Ignition System Components (Grand Vitara 2.5L)

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Fig 4: Identifying Electronic Ignition System Components (Vitara 1.6L & Esteem 1.6L)

Courtesy of SUZUKI OF AMERICA CORP.