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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 24 (Engine Controls - 3.6L - Diagnosis (DTC P2188 - P2636)) >> Engine Controls Diagnosis >> DTC P2301, P2304, P2307, P2310, P2313, or P2316 >> Circuit Description

Circuit Description

WARNING: This page is about a different variant/trim than selected.

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 shorted to voltage, this DTC sets.