2001 Mazda MPV DXFACTORY OEM SERVICE PROCEDURE

Component Test

WARNING: This page is about a different car, the 2002 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
  1. Locate CPU behind left kick panel. For connector "A", disconnect CPU from joint box and take measurements at CPU terminals. For connectors "B", "C" and "D", using DVOM, leave CPU connectors attached to measure voltage at specified terminals (backprobe connectors). To check continuity, disconnect CPU connectors and measure at specified connector terminal. See Fig 1 -Fig 5 .
  2. If voltage measurements or continuity are not as specified, check related components and wiring harnesses. If related components and wiring harnesses are okay, but system is still not functioning properly, replace CPU. See CENTRAL PROCESSING UNIT (CPU)  under REMOVAL & INSTALLATION.
Fig 1: Identifying CPU Connector Terminals
G00018618Courtesy 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:

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

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