Drive Mode 3 - HO2S, HO2S Heater & TWC Repair Verification

1. PerformDRIVE MODE 1 - PCM Adaptive Memory  first and go to next step.
2. Ensure all electrical and A/C loads are off.
3. Drive vehicle at specified speeds. SeeFig 1.
4. Stop vehicle and access ON BOARD SYSTEM READINESS menu of GENERIC OBD II FUNCTIONS to check drive mode completion status. RFC flag should change from NO to YES when test is complete.
5. If test is not complete, turn ignition switch off and go to step 3. If test is complete, go to next step.
6. Check test results in DIAGNOSTIC MONITORING TEST RESULTS menu of GENERIC OBD II FUNCTIONS. If results are okay (MEAS are within specification), go to next step. If results are not okay (MEAS are not within specification), repairs are not complete.
7. Verify DTCs are not present. If DTCs are not present, repairs are complete.

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

Courtesy of MAZDA MOTORS CORP.

NOTE: If Drive Mode 4 - EVAP System Repair Verification cannot be performed (vehicle cannot be driven under conditions specified for this test), perform evaporative system test procedure as an alternative. SeeFUEL EVAPORATIVE SYSTEM - EXCEPT MPV in SYSTEM & COMPONENT TESTING - MIATA, MILLENIA, MPV, PROTEGE, PROTEGE5 & 626 article.