Monitor Description

WARNING: This page is about a different car, the 2016 Toyota Highlander, 2015 Toyota Highlander, and 2014 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.

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

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P0607	Control Module Performance	ECM CPUs malfunction Heated oxygen sensor transistor (built into ECM) malfunction	ECM Heated oxygen sensor (bank 1, 2 sensor 2) Exhaust gas leak	Comes on	DTC stored	DTC for Mexico Models - Does not apply