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Electronic Ignition System Diagnosis: Description

Electronic ignition system uses an individual ignition coil for each cylinder. PCM controls ignition operation through 6 Ignition Control (IC) circuits. Each ignition coil is connected to PCM, power, or ground by the following circuits:

PCM triggers an ignition coil by grounding appropriate IC Control circuit using information from Crankshaft Position (CKP) and Camshaft Position (CMP) sensors.

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