DTC P0607: Control Module Performance: Description

The ECM continuously monitors its internal processors (CPUs) and heated oxygen sensor (HO2S) transistors. This self-check ensures that the ECM is functioning properly.

DTC No.	DTC Detection Condition	Trouble Area
P0607	ECM CPUs malfunction Heated oxygen sensor transistor (built into the ECM) malfunctions	Heated oxygen sensor Exhaust gas leak ECM