Mode 3 (HO2S heater, HO2S, and TWC Repair Verification Drive Mode)
- Perform "PCM Adaptive Memory Produce Drive Mode" first.
- Verify that all accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
- Drive the vehicle as shown in the graph. The driving condition before driving at constant speed driving is not specified.
- Stop the vehicle and access to ONBOARD 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 ignition key off then repeat from Step 3
.
- Access DIAGNOSTIC MONITORING TEST RESULTS menu of GENERIC OBD II
- If detected values are not within specification, repair has not been completed.
- Verify no DTCs are available.
Courtesy of MAZDA MOTORS CORP.