DTC P0607: Control Module Performance: Description

The ECM continuously monitors its internal processors (CPUs) and Heated Oxygen (HO2) sensor transistors. This self-check ensures that the ECM is functioning properly.

DTC No.	DTC Detection Condition	Trouble Area
P0607	ECM CPUs malfunction Heated Oxygen (HO2) transistors (built into ECM) malfunctions	Exhaust gas leak HO2 sensor ECM