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Home >> Saturn >> 2009 >> Sky Red Line, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.0L - DTC P0243 To DTC P0690 >> DTC P0351-P0354 >> Circuit/System Description

Circuit/System Description

The ignition system uses individual ignition coil/module assemblies for each cylinder. The engine control module (ECM) controls the individual coils by transmitting timing pulses on the ignition control (IC) circuit of each ignition coil/module to enable a spark event. When the engine is running the ECM monitors each IC circuit for improper voltage levels. Each ignition coil/module has the following circuits:

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