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Home >> Mazda >> 2017 >> 5 GT, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Control - Introduction (1 Of 2) >> OBD-II Drive Mode >> Mode 03 (EGR System, A/F Sensor Heater, HO2S Heater, A/F Sensor, HO2S and TWC Repair Verification Drive Mode)
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Mode 03 (EGR System, A/F Sensor Heater, HO2S Heater, A/F Sensor, HO2S and TWC Repair Verification Drive Mode)

  1. Start the engine and warm it up completely.
  2. Verify all accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
  3. Drive the vehicle as shown in the graph. The driving conditions before driving at constant speed are not specified.
    G13726483Courtesy of MAZDA MOTORS CORP.
  4. Stop the vehicle and access the ON BOARD SYSTEM READINESS menu of GENERIC OBD-II FUNCTION to verify the OBD monitoring status.
    • If completed, the OBD monitoring status items change from non-completed to completed.
    • If not completed, switch the ignition to off then repeat from Step  3.
  5. Access the DIAGNOSTIC MONITORING TEST RESULTS menu of GENERIC OBD-II FUNCTIONS to verify the monitor results.
    • If detected values are not within the specification, repair has not been completed.
  6. Verify no DTCs are available.
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