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Home >> Mazda >> 2005 >> MX-5 Miata Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System BP, BP With TC] >> OBD-II Drive Mode >> Mode 1 (PCM Adaptive Memory Production Drive Mode)

Mode 1 (PCM Adaptive Memory Production Drive Mode)

  1. Start the engine and warm it up completely.
  2. Verify the following conditions and correct if necessary:
    • All accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
    • Initial ignition timing and idle speed are within the specification.
    • TEN and GND of DLC are not connected.
  3. Perform no load racing at the engine speed shown in the graph, then idle the engine for more than 20 s  after the cooling fan has stopped. If possible, monitor RPM PID for engine speed and FAN2 PID (with A/C), FAN1 PID (without A/C) for cooling fan status during this procedure.
    Fig 1: Identifying PCM Adaptive Memory Production Drive Mode
    G03637551Courtesy of MAZDA MOTORS CORP.
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