Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONOBD-II DRIVE CYCLESDRIVE CYCLES2002: MILLENIAMODE 3: HO2S & TWC REPAIR VERIFICATION
2010 Mazda 5 Sport, 2.3 L, Standard
Mode 3: HO2S & TWC Repair Verification
2010 Mazda 5 Sport, 2.3 L, StandardSECTION Mode 3: HO2S & TWC Repair Verification
- Perform Drive Mode 1 first. SeeMode 1: PCM Adaptive Memory Procedure .
- Verify all accessory loads (A/C, headlights, blower fan and rear window defroster) are off.
- Drive the vehicle as specified. SeeFig 1 orFig 2.
- Stop the vehicle and access to On-Board System Readiness Menu to check the drive mode completion status.
- If completed, RFC changes from "NO" to "YES".
- If not completed, turn ignition off, go to step 3.
- Access to Diagnostic Monitoring Test Results menu to check the monitor results. If measurements are not within specification, repair has not been completed.
- 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.