Monitor Description

WARNING: This page is about a different car, the 2025 Toyota GR Corolla, 2024 Toyota GR Corolla, and 2023 Toyota GR Corolla. However, it is still accessible from the selected car via links, so may be relevant.

The ECM monitors the current value of the exhaust pipe gas control actuator sub-assembly (drive motor), and if the current value is outside the normal range, the ECM judges that there is an exhaust pipe gas control actuator sub-assembly (drive motor) circuit malfunction.

Also, if the exhaust change valve is not functioning correctly (such as when the exhaust change valve is stuck), the ECM judges that there is a malfunction in the exhaust pipe gas control actuator sub-assembly. In this case, the ECM stores a DTC.

Example:

If the output duty cycle is 59% or more and the current flow of the exhaust pipe gas control actuator sub-assembly (drive motor) is less than 0.45 A for 2 seconds or more, the ECM judges that the value is outside the normal range and stores a DTC.