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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> General Information >> OBD-II Drive Cycles >> Drive Cycles >> 1999: Protege >> OBDII Drive Mode >> Mode 1 (PCM adaptive memory produce drive mode)

Mode 1 (PCM adaptive memory produce drive mode)

NOTE:
  • The PCM adaptive memory status can be confirmed with RFC FLAG PID.
  • If RFC FLAG PID is ON, Mode 1 is not necessary, because PCM already has adaptive memory.
  • If RFC FLAG PID is OFF, Mode 1 should be performed before Mode 2 or 3.
  1. Start the engine and warm 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 specification.
    • TEN and GND of DLC are not connected.
  3. With the transmission set in Park or Neutral, perform no load racing at the engine speed, 2300-2700 rpm for more than 15 seconds, increase to 3800-4200 rpm for more than 15 seconds, then idle the engine for more than 20 seconds after the cooling fan stopped. If possible, monitor RPM PID for engine speed and FAN3 PID for cooling fan status during this procedure.
  4. Turn the ignition key off then on again.
  5. Access to RFC FLAG PID to confirm PCM adaptive memory status. If RFC FLAG PID is ON, Mode 1 is completed.
  6. If RFC FLAG PID is still OFF, go back to Step 1
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