Mazda RX-8 2004 - Electric Power Steering (Eps) 06-13 Electric Power Steering (Eps)

ELECTRIC POWER STEERING (EPS)
06–13–1
06–13
06–13 ELECTRIC POWER STEERING (EPS)
ELECTRIC POWER STEERING (EPS)
OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . 06–13–1
ELECTRIC POWER STEERING (EPS)
STRUCTURAL VIEW . . . . . . . . . . . . . . 06–13–2
ELECTRIC POWER STEERING (EPS)
SYSTEM WIRING DIAGRAM . . . . . . . . 06–13–3
ELECTRIC POWER STEERING (EPS)
CONSTRUCTION/OPERATION . . . . . . 06–13–4
Construction. . . . . . . . . . . . . . . . . . . . . 06–13–4
Operation . . . . . . . . . . . . . . . . . . . . . . . 06–13–4
Function of Component Parts . . . . . . . 06–13–5
STEERING GEAR AND LINKAGE
CONSTRUCTION . . . . . . . . . . . . . . . . . 06–13–5
ELECTRIC POWER STEERING (EPS)
MOTOR CONSTRUCTION/
OPERATION . . . . . . . . . . . . . . . . . . . . . 06–13–6
Construction. . . . . . . . . . . . . . . . . . . . . 06–13–6
Operation . . . . . . . . . . . . . . . . . . . . . . . 06–13–6
TORQUE SENSOR
CONSTRUCTION/OPERATION . . . . . . . 06–13–7
Construction . . . . . . . . . . . . . . . . . . . . . 06–13–7
Operation . . . . . . . . . . . . . . . . . . . . . . . 06–13–7
ELECTRIC POWER STEERING (EPS)
CONTROL MODULE
CONSTRUCTION/OPERATION . . . . . . . 06–13–8
Construction . . . . . . . . . . . . . . . . . . . . . 06–13–8
Operation . . . . . . . . . . . . . . . . . . . . . . . 06–13–9
CONTROLLER AREA NETWORK
(CAN) OUTLINE . . . . . . . . . . . . . . . . . . . 06–13–10
ENERGY ABSORBING SYSTEM
CONSTRUCTION/OPERATION . . . . . . . 06–13–11
Construction . . . . . . . . . . . . . . . . . . . . . 06–13–11
Operation . . . . . . . . . . . . . . . . . . . . . . . 06–13–11
End of Toc
ELECTRIC POWER STEERING (EPS) OUTLINE
CHU061301034S01
• Rack assist EPS (Electric Power Steering), with a direct-assist type rack, has been adopted for the steering
rack on all models.
• EPS provides excellent steering feel and smooth handling from low to high speeds due to an electronic control
system.
• Since the electric power assist system does not require a power steering oil pump, engine load has been
reduced and fuel economy improved.
Caution
• After performing the following work on the steering system, always set the EPS system to the
neutral position to prevent system malfunction. Refer to the Workshop Manual for neutral position
setting procedures.
— Replacing the steering gear and linkage
— Replacing the EPS control module
— Disconnecting the steering shaft joint (gear side)
End Of Sie