LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 2004 >> CTS Base, 3.6 7 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Controls - 2.6L & 3.2L - Diagnosis (DTC P0172 - P0446)) >> Diagnostic Trouble Codes >> DTC P0261, P0264, P0267, P0270, P0273, or P0276 >> Circuit Description

Circuit Description

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

The engine control module (ECM) enables the appropriate fuel injector on the intake stroke for each cylinder. Ignition voltage is supplied to the fuel injectors. The ECM controls each fuel injector by grounding the control circuit via a solid state device called a driver. The ECM monitors the status of each driver. If the ECM detects a short to ground for the commanded state of the driver, a fuel injector control DTC sets.