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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.
Fig 2: Identifying Connector "A" Pin Voltages & Continuity
G00018619Courtesy of MAZDA MOTORS CORP.
Fig 3: Identifying Connector "B" Pin Voltages & Continuity
G00018620Courtesy of MAZDA MOTORS CORP.
Fig 4: Identifying Connector "C" Pin Voltages
G00018621Courtesy of MAZDA MOTORS CORP.
Fig 5: Identifying Connector "D" Pin Voltages & Continuity
G00018622Courtesy of MAZDA MOTORS CORP.
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