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HOMESERVICE MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONOBD-II DRIVE CYCLESDRIVE CYCLES2004: MX-5 MIATAMODE 3 (HO2S HEATER, HO2S, & TWC REPAIR VERIFICATION DRIVE MODE)
2010 Mazda 5 Sport, 2.3 L, Standard

Mode 3 (Ho2S Heater, Ho2S, & TWC Repair Verification Drive Mode)

2010 Mazda 5 Sport, 2.3 L, StandardSECTION Mode 3 (Ho2S Heater, Ho2S, & TWC Repair Verification Drive Mode)
  1. Perform Mode 1 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: Verifying All Accessory Loads (A/C, Headlights, Blower Fan, Rear Window Defroster) Are Off
    G00989178Courtesy of MAZDA MOTORS CORP.
  4. Stop the vehicle and access ON BOARD SYSTEM READINESS menu of GENERIC OBD-II FUNCTION to inspect the completion 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 inspect 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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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.