Circuit Description

WARNING: This page is about a different car, the 2005 Lexus RX 330. However, it is still accessible from the selected car via links, so may be relevant.

This DTC indicates the internal abnormalities of the ECM.

Fig 1: DTC P0607/54 Problem Symptom Diagnostic Chart

HINT:

When a malfunction code is detected, the fail safe must be kept on until the ignition switch is turned OFF.