•  The PCM determines the engine operation conditions based on input signals from sensors, blocks current to the ignition coils by the calculated ignition timing, and discharges (ignition) the spark plugs based on the effect of electromagnetic mutual induction.

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1	Neutral switch (MTX)
2	CPP switch (MTX)
3	PSP switch (Without throttle valve actuator)
4	ECT sensor
5	IAT sensor
6	CKP sensor
7	CMP sensor
8	TP sensor
9	MAF sensor
10	TR switch (ATX)
11	Brake switch
12	A/C on request signal
13	Refrigerant pressure switch (low pressure switch, high pressure switch)
14	Engine stop request signal (Without throttle valve actuator)
15	Variable tumble shutter valve switch (With throttle valve actuator)
16	APP sensor (With throttle valve actuator)
17	Igniter operation time
18	Ignition timing
19	Fixed ignition
20	Cycle estimated ignition
21	Idle spark advance
22	Basic spark advance
23	Corrections
24	Ignition coil