What are the reasons for the ABS light being on and the steering wheel feeling heavy?

[AnnaLynn]

The reasons for the ABS light being on and the steering wheel feeling heavy are: 1. Deformation of the steering knuckle arm; 2. Lack of oil or damage to the steering knuckle thrust bearing; 3. Excessive tightness or lack of lubrication in the clearance between the steering knuckle kingpin and bushing. The function of the steering wheel is to convert the force applied by the driver to the edge of the steering wheel into torque, which is then transmitted to the steering shaft. It mainly consists of a frame, foam, and corresponding installation clips or screw holes for the driver's airbag (DAB). The steering wheel is generally connected to the steering shaft via splines, and its function is to convert the driver's input force at the wheel's edge into torque transmitted to the steering shaft. Using a steering wheel with a larger diameter reduces the hand force required from the driver during steering. The steering intermediate shaft serves as a connecting component between the steering gear and steering shaft, facilitating steering gear standardization, compensating for manufacturing and installation errors, and enabling more rational installation of the steering gear and wheel in the vehicle.