HO2S Heater, HO2S, and EGR System Repair Verification Drive Mode

Without rear HO2S model 

1. Perform "PCM Adaptive Memory Produce Drive Mode" 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. Driving condition before the constant speed driving is not specified.
4. Stop the vehicle and access the ON BOARD SYSTEM READINESS menu of GENERIC OBD II FUNCTION to verify the OBD monitoring status.
   • If completed, the OBD monitoring status items change from non-completed to completed.
   • If not completed, turn the key off then repeat from Step  3.
5. Access DIAGNOSTIC MONITORING TEST RESULTS menu of GENERIC OBD II FUNCTIONS to verify the monitor results.
   • If detected values are not within specification, repair has not been completed.
6. Verify no DTCs are available.

Fig 1: Vehicle Speed Graph - HO2S Heater, HO2S, And EGR System Repair Verification Drive Mode Without Rear HO2S Model

Courtesy of MAZDA MOTORS CORP.