Honda NSX-T 1998 Manual page 897

Main Menu
System Description
Major Components
The Electrical Power Steering system is composed of the following major components:
• A steering gearbox that converts rotary operation of the steering wheel into transverse operation via a rack and pinion
mechanism. Steering sensors and an actuating motor are incorporated.
• A control unit that computes the optimum amount of power assistance, taking into account steering torque, and vehi-
cle speed. Self-diagnosis functions are included.
• A power module in the EPS control unit that drives the motor according to the signals from the EPS control unit. A cur-
rent sensor is built in to give feedback information to the EPS control unit. Two relays shut off the power if a problem
in the system occurs.
• The countershaft speed sensor on the automatic transmission or the differential speed sensor on the manual transmis-
sion sends a vehicle speed signal to the EPS control unit. Also the speedometer sends a vehicle speed signal to the EPS
control unit. The two signals are used as a double-check.
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