1987 Mazda RX-7 Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Control Units

CONTROL UNITS LOCATION

Component Location
Automatic Adjusting Suspension (AAS) Control Unit On rear of vehicle to right of license plate. See Figure & Figure .
Anti-Lock Brake (ABS) Control Unit Below right side of dash. See Figure .
Central Processing Unit (CPU) Behind left kick panel, near fuse block. See Figure .
Cruise Control Unit Under left side of dash, near central processing unit. See Figure .
Electric Fan Control Unit (A/T) Behind right side of dash. See Figure .
Emission Control Unit Below right side of dash. See Figure & Figure .
Power Steering Control Unit Under steering column. See Figure .
Theft Deterrent Control Unit Below right side of dash, behind glove box. See Figure .
A/T Control Unit Behind right side of dash. See Figure .
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.