Major Components - Honda Acura NSX 1991 Service Manual

-Major Components
The Electrical Power Steering system is composed of the following major components:
l
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.
l A control unit that computes the optimum amount of power assistance, taking into account steering torque, steering
speed, and vehicle speed. Selfdiagnosis functions are included.
l
A power unit that drives the motor according to the signals from the control unit. A current sensor is built in to give
feedback information to the control unit. Two relays shut off the power if a problem in the system occurs.
l Two speed sensors, the speedometer and the automatic transmission sensor, send vehicle speed information to the
control unit. Two sensors are used as a double-check.
POWER UNIT
SPEEDOMETER
n
ALTERNATOR
FUSE BOX
r
UNIT
AT 'SPEED SENSSOR