The Power Steering Pump; Electronic Brake Traction Control Description; Steering Wheel And Column; Vehicle Steering - Chevrolet Corvette 2003 Owner's Manual

2003 Chevrolet Corvette Restoration Kit
The Power Steering Pump
A constant displacement van-type pump performs the following services for the steering system:
• Provides hydraulic pressure
• Provides flow
The power steering pump and the engine crankshaft pulleys drives the pump. The opening at the rear of
the pump housing contains the following components:
• The pump ring
• The pressure plate
• The thrust plate
• The rotor
• The vanes
• The end plate
The pump housing side contains the pressure line fitting. The pressure relief valve inside the flow control
valve limits the pump pressure.
Electronic Brake Traction Control Description
The MAGNASTEER system has software contained in the Electronic Brake Traction Control Module
(EBTCM). The EBTCM processes vehicle speed information from the ABS wheel speed sensors and the
steering wheel position sensor to provide a control signal to the MAGNASTEER actuator located in the
power steering gear.
Steering Wheel and Column
The steering wheel and column has 4 primary functions:
• Vehicle steering
• Vehicle security
• Driver convenience
• Driver safety
Vehicle Steering
The steering wheel is the first link between the driver and the vehicle. The steering wheel is fastened to a
steering shaft within the column. At the lower end of the column, the intermediate shaft connects the
column to the steering gear.
Vehicle Security
Theft deterrent components are mounted and designed into the steering column. The following
components allow the column to be locked in order to minimize theft:
• The ignition switch
• The steering column lock
• The ignition cylinder
Driver Convenience
The steering wheel and column may also have driver controls attached for convenience and comfort. The
following controls may be mounted on or near the steering wheel or column.
• The turn signal switch
• The hazard switch
• The headlamp dimmer switch
• The wiper/washer switch
• The horn pad/cruise control switch
• The redundant radio/entertainment system controls
• The tilt or tilt/telescoping functions
• The HVAC controls
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