Powertrain Control Module Location & Connectors Terminals Identification
WARNING: This page is about a different car, the 2003 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
PCM is located above brake pedal. For PCM location and connector terminals identification. See Fig 1 and Fig 2
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Fig 1: Locating Powertrain Control Module
Courtesy of MAZDA MOTORS CORP.
Fig 2: Identifying Power Control Module Connectors & Terminals