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 DIAGNOSISGENERAL INFORMATIONOBD-II DRIVE CYCLESDRIVE CYCLES2003: MAZDA6OBD-II DRIVE MODESMODE 2 - EGR SYSTEM REPAIR VERIFICATION DRIVE MODE

2010 Mazda 5 Sport, 2.3 L, Standard

Mode 2 - EGR System Repair Verification Drive Mode

2010 Mazda 5 Sport, 2.3 L, StandardSECTION Mode 2 - EGR System Repair Verification Drive Mode

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. SeeFig 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.

Fig 1: Identifying Drive Mode 2 - EGR System Repair Verification Drive Mode & Vehicle Speed

Courtesy of MAZDA MOTORS CORP.

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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.