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 MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 58 (ENGINE CONTROLS [SELF-DIAGNOSTICS 2.3L])DRIVE CYCLESOBD-II DRIVE MODESMODE 2 - EGR SYSTEM REPAIR VERIFICATION DRIVE MODE
2008 Mazda 6 s Sport, 4D Hatchback, Standard
Mode 2 - EGR System Repair Verification Drive Mode
2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Mode 2 - EGR System Repair Verification Drive Mode
WARNING: This page is about a different car, the 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
- Access to RFCFLAG PID to confirm PCM adaptive memory status.
- If RFCFLAG PID is "Not Learned", perform "PCM Adaptive Memory Produce Drive Mode" first.
- If RFCFLAG PID is ON, start engine and warm up completely.
- Verify all accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
- Drive vehicle as shown in graph. See Fig 1.
- Stop vehicle and access ON BOARD SYSTEM READINESS to inspect DRIVE MODE COMPLETION STATUS.
- If completed, Readiness Function Check (RFC) flag changes from NO to YES.
- If not completed, turn ignition off and repeat testing from step 3.
- Access DIAGNOSTIC MONITORING TEST RESULTS menu of GENERIC OBD-II FUNCTIONS to inspect monitor results. If MEAS are within specification, repair is completed. If MEAS are not within specification, repair is not 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.