Monitor Description
WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
When an open or short to ground in the solenoid (SLU) valve circuit is detected, the ECM will determine that there is a malfunction, illuminate the MIL and store this DTC.