what diagnostic equipment is usually needed to diagnose faults or relearn the electric power steering system? factory or factory level scan tool.
How do you diagnose electric power steering problems?
The main indication you’ll get if there is a malfunction with the electric power steering system is that the EPS light will illuminate on the dashboard. Specifically, the warning light will come on when the EPS system is off.
What tool is typically used to begin diagnosis of an electric power steering system when the EPS lamp indicates a fault?
The electromechanical assist is usually a directionally controlled, pulse-modulated electric motor that is geared into the steering shaft. Diagnostics on any EPS system should begin by scanning the EPS module for diagnostic trouble codes.
What is a common causes of electric power steering failure?
Today’s electronic power steering systems may fail due to issues with the mounted electric motor. In particular, excessive heat on the motor is likely to cause the failure modes. Infiltration of the system environment by water, dirt, or other contaminants will also likely lead to EPS failure.
What is EPS control module?
Purpose/ Function. The EPS control module (CM) calculates the optimum assist current based on the steering torque signal from the torque sensor installed to the steering column and the vehicle speed signal sent via CAN transmission from the PCM. The following steering angle signals are output via CAN communication.
How do you calibrate electric power steering?
Calibration is normally done with a scan tool. Sometimes the vehicle will need to be on an alignment rack. The calibration process is normally done by putting the wheels in the straight forward position, and then zeroing out the sensor with a scan tool.
What is steering wheel rack?
The rack and pinion, also known as the steering rack, is an assembly in your vehicle that allows your wheels to rotate from side to side when you turn your steering wheel. … Connected to both ends of the rack is a tie rod that connects the steering arm on the spindle.
Why power steering is required?
What a power steering mechanism does is, it reduces the effort required to turn the steering wheel of the vehicle to change its direction. The lack of power steering makes this process cumbersome, especially at low speeds, resulting in driver fatigue.
How do electric power steering systems work?
The electric power steering uses an electric motor that draws energy from the vehicle’s electrical system to provide steering assistance. Sensors detect the torque or effort that the driver is applying at the steering wheel, and a computer decides how much assist needs to be added.
How do you check steering system?
Rock the steering wheel from side to side and up and down to check for any wobble or abnormal steering effort or noise. If there is excessive movement or an audible clunking or grinding sound, replace the steering column. Inspect for obvious compression of the column jacket.
How do I check my power steering rack and pinion?
Tell the helper to move the wheel very slowly, and to stop when you call out. Call when you see the track rod move. If there is more than 1/2in (13mm) movement in the steering wheel, check for play at the steering rack and at the track-rod ends. There should be very little play in a steering rack system.
What causes stiff electric power steering?
The most common cause of a stiff steering wheel is the lack of enough power steering fluid in the system. This condition can arise if there’s fluid leakage from the pressurized hose area. Refilling the liquid in the power steering tank will fix the problem for the time being, but the leak must be taken care of.
Can EPS module be repaired?
Electronic Power Steering (EPS) Module Repair Service for all brands. We repair all EPS of all vehicles.