Where is the engine knock sensor on a 2001 Toyota Highlander?

On a 2001 Toyota Highlander, the engine knock sensor is typically located on the engine block, specifically on the side of the engine near the cylinder head. It is usually mounted on the lower portion of the engine, often towards the rear or side. To access it, you may need to remove some components like the intake manifold or other covers, depending on the specific engine configuration. Always consult a repair manual for precise location and access instructions.