1995 Mazda RX-7 StandardFACTORY OEM SERVICE PROCEDURE

Electrical Load System

CPU acts as an electrical load sensor. Remove CPU from right side kick panel above ECU. Check voltage at terminals of CPU connector. See CPU UNIT VOLTAGE CHART. See Fig 1 . If voltages are incorrect, check appropriate circuit. If circuits are okay but voltages are still incorrect, replace CPU.

Fig 1: Electrical Load System Pin Voltage Chart
G94G45233Courtesy of MAZDA MOTORS CORP.
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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.

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