Electric Power Steering Quiz

The two basic types of electric power steering include ________.

• column mounted and rack mounted
• engine driven and battery powered

• engine mounted and column mounted

• electro-hydraulic and rack mounted

The advantages of electric power steering compared to hydraulic power steering include ________.

• increased usable engine power
• improved fuel economy

• less weight

• All of the above

What type of motor is used in most electric power steering (EPS) systems?

• Stepper

• DC brushless

• AC brush type

• None of the above

Two technicians are discussing electric power steering (EPS) systems. Technician A says that some systems operate on 12 volts. Technician B says that some systems operate on 42 volts, such as on some hybrid electric vehicles. Which technician is correct?

• Technician A only

• Technician B only

• Both technicians

• Neither technician

A typical electric motor used in electric power steering systems produces about how much power?

• 1 horsepower

• 3/4 horsepower

• 1/2 horsepower

• 1/4 horsepower

What is the relationship between the power steering control module (PSCM) and the powertrain control module (PCM)?

• No connection between the two

• Usually wired between the two

• Uses serial data lines between the two modules

• Mounted together on the electric power steering (EPS) motor

If a fault is detected in the electric power steering system, what dash light is turned on?

• The "check engine" light

• The "service vehicle soon" light

• The power steering warning light

• Either B or C

What diagnostic equipment is usually needed to diagnose faults or relearn the electric power steering system?

• Factory of factory-level scan tool

• A breakout box

• A 12-volt test light

• Special electronic diagnostic equipment designed to test each specific system

Self-park systems use what sensors and EPS to achieve the parking maneuver?

• Ultrasonic sensors

• Steering wheel position sensor

• Wheel speed sensors (WSS)

• All of the above

Electro-hydraulic power steering systems use ________.

• an electric motor to power a hydraulic pump

• a conventional hydraulic power steering gear

• an engine-driven hydraulic power steering pump and an electric motor steering gear

• Both A and B