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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 151 (On-Board Diagnostic [Engine Control System L3)) >> OBD-II Drive Mode >> H02S heater, H02S, and TWC Repair Verification Drive Mode

H02S heater, H02S, and TWC Repair Verification Drive Mode

WARNING: This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform "PCM Adaptive Memory Production Drive Mode" first.
  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.
    Fig 1: HO2S Heater, HO2S And TWC Repair Verification Drive Mode Graph (Vehicle Speed Vs Time)
    G01012665Courtesy of MAZDA MOTORS CORP.
  4. Stop the vehicle and access 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, turn the ignition key off then repeat from Step  3.
  5. Access 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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