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Home >> Mazda >> 2021 >> 3 Base >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (VINS 7, L, M) (Introduction) >> OBD-II Drive Mode (VIN M) >> Single Drive Mode

Single Drive Mode

  1. Verify all accessory loads (A/C, headlights, blower fan, rear window defogger) are off.
  2. Verify that all of the following PIDs are within the following specifications. All PIDs must be within specifications before the engine is started to initiate the evaporative system test.
    • IAT:5-35°C {41-95°F}
    • FLI:15-85 %
    • BARO: Above 72.3 kPa {0.737 kgf/cm2 , 10.5 psi}
  3. Start the engine and warm it up completely.
  4. Clear the DTCs from the PCM memory using the M-MDS. (See CLEARING DTC .)
  5. With the vehicle stopped, race the engine at the engine speed indicated, and then drive the vehicle as shown in the graph. If possible, monitor the ENG_RPM PID for engine speed during this procedure.
    G13174030Courtesy of MAZDA MOTORS CORP.
  6. To verify the completion of the drive mode, stop the vehicle and display the [Mode 1 Powertrain Data] of the ON-BOARD DIAGNOSTIC (OBD) TEST MODES using the M-MDS.

    (See ON-BOARD DIAGNOSTIC (OBD) TEST MODES .)

    • If the drive mode has been completed, [***RDY] (each system completed) of the PID [***SUP] (with/without support for each system monitor) item indicating YES changes from NO to YES.
      • If not completed, switch the ignition off, then perform the applicable specific Drive Mode for any monitoring item that was not in the detection condition.
  7. Access the diagnostic monitoring test results to verify the monitor results.

    (See ON-BOARD DIAGNOSTIC (OBD) TEST MODES .)

    • If detected values are not within specification, repair has not been completed.