Monitor Description

The fuel injection sequence occurs in numerical order from No. 1 to No. 6.

The ECM monitors the Injector Driver (EDU) at all times. If drivers or fuel injector assembly (for direct injection) are malfunctioning, the EDU sends fuel injector assembly (for direct injection) operation condition signals (fail signals) to the ECM. When the ECM receives the signals, the ECM stops the fuel injection control of the appropriate cylinders, cuts voltage to the appropriate D INJ relay, and illuminates the MIL.