Noises originating from the steering column of your 2022 Toyota Highlander when turning the wheel indicate issues within the column assembly itself. These sounds can range from clicks to creaks to grinding, each suggesting different component problems.
Steering Column Components
The Highlander's steering column includes the EPS motor assembly, intermediate shaft with u-joints, bearings, and various trim pieces. The column also houses the clock spring for steering wheel controls. Any of these components can develop noise.
Intermediate Shaft U-Joints
Universal joints in the intermediate steering shaft can develop wear and produce clicking or clunking sounds. This is a common source of steering noise, particularly noticeable when the shaft is under load during steering maneuvers.
Column Bearing Noise
The steering column rides on bearings that allow smooth rotation. Dry or worn bearings create creaking or grinding sounds during steering. This noise often worsens over time as bearings deteriorate further.
EPS Motor Sounds
The electric power steering motor is part of the column assembly. Motor bearing wear or internal issues can create grinding or whining that appears to come from the column area.
Clock Spring Issues
The clock spring (spiral cable) can create clicking or scraping sounds if damaged or improperly seated. While clock springs more commonly cause electrical issues, they can produce sounds in some failure modes.
Code C1515 and EPS System
Code C1515 relates to EPS system faults. While not specifically a noise code, EPS issues can manifest with sounds as well as warning lights. The system should be scanned for any related codes.