I have a Mazda 3 2007 electric power steering pump. I would like to use it on my boat as a power assist unit for my Autopilot. The boat has a conventional belt driven pump and steers nicely. However I only have that when the main engine is running and not when trolling under power from the kicker.. I havent installed an electric PS pump but I've looked into the MR2 elecro/hydro pump. AFIK you just supply a large fused, Ign switched, power and it runs constantly. when the rack isnt being worked the fluid is internally bypassed. no control needed. the Mazda 3 unit should be similar.
List of elements for Electronic Power Steering Wiring Diagram for Mazda 3 i 2006: (behind right headlight) g4; Computer data lines system; Ehpas control module (right front of engine compt) Fuse & relay box (left rear of engine compt) Hot at all times; Hot in run or start; P/st fuse 80a; P/st ig fuse 10a; Power steering angle sensor (under.. This document is a workshop manual for the steering system of the Mazda 3. It contains sections on electro-hydraulic power steering diagnosis and troubleshooting, including a list of diagnostic trouble codes and their meanings. It also covers procedures for inspecting and replacing various steering system components like the steering wheel, column, shaft, gear, and linkages. Troubleshooting.