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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Control System & Fuel System - 3.6L - DTC P0135 To P0420) >> DTC P0351-P0356 >> Circuit Description

Circuit Description

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The ignition system on this engine uses individual ignition coils and ignition control (IC) circuits for each cylinder. The engine control module (ECM) controls the ignition system operation. The ECM controls each coil using the IC circuits. The ECM commands the IC circuit low when a spark event is requested. Each ignition coil is supplied the following circuits:

The sequencing and timing are ECM controlled. If the ECM detects the ignition control circuit is open, this DTC sets.