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Home >> Mazda >> 2000 >> Protege DX, Automatic >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Diagnosis - FN4A-El >> Operation >> Powertrain Control Module
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Powertrain Control Module

PCM receives information from various input devices and uses this information to control solenoids on transaxle valve body for transaxle shifting, shift feel and torque converter clutch engagement.

PCM automatically switches from NORMAL mode to POWER mode corresponding to driving condition in "D" range. Upshifts and downshifts are performed at a higher speed in POWER mode than in NORMAL mode.

PCM contains a self-diagnostic system, which will store DTCs if a failure or problem exists in electronic control system. DTC can be retrieved to determine problem area. See RETRIEVING DIAGNOSTIC TROUBLE CODES  under DIAGNOSIS & TESTING. PCM is located under center of instrument panel, in front of center console.