Mode 3 HO2S heater, HO2S, and TWC repair verification drive mode)

1. Access to RFC FLAG PID to confirm PCM adaptive memory status. if RFC FLAG PID is OFF, perform Mode 1 first.Mode 1 (PCM adaptive memory produce drive mode) .
2. If RFC FLAG PID is NO, start the engine and warm up completely.
3. Verify all accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
4. Drive the vehicle as shown in the graph.Fig 1 Driving condition before the constant speed driving is not specified.
5. Stop the vehicle and access to ON BOARD SYSTEM READINESS menu of GENERIC OBD II FUNCTION to inspect the Drive Mode completion status. If completed, RFC changes from NO to YES.
6. If not completed, turn the ignition key off then go back to Step 4.
7. Access to DIAGNOSTIC MONITORING TEST RESULTS menu of GENERIC OBD II FUNCTIONS to inspect the monitor results. If MEAS are not within specification, repair has not completed.
8. Verify no DTCs are available.

Fig 1: HO2S/TWC Monitor Repair Verification Drive Mode, Vehicle Speed Table

Courtesy of MAZDA MOTORS CORP.