Monitor Description

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.