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.
This DTC is stored when an open or short is detected in the vacuum regulating valve assembly circuit. When an excessively high or low duty cycle malfunction occurs in the vacuum regulating valve assembly during vacuum regulating valve assembly drive, the stores this DTC.