Circuit Description
WARNING: This page is about a different car, the 2002 GMC Sonoma and 2002 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.
The PCM enables the appropriate fuel injector on intake e stroke for each cylinder. A voltage is supplied directly to fuel injectors. PCM controls each fuel injector by grounding the control circuit via a solid state device called a driver. PCM monitors status of each driver. If PCM detects an incorrect voltage for the commanded state of the driver, a fuel injector control DTC sets.