Mode 3 (HO2S heater, HO2S, and TWC Repair Verification Drive Mode)

WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

Perform the Mode 1 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 is not specified.
Stop the vehicle and access the ON BOARD SYSTEM READINESS to inspect the Drive Mode completion status.
- If completed, RFC changes from No to Yes.
- If not completed, turn the ignition switch off, then go back to Step 3.
Access the DIAGNOSTIC MONITORING TEST RESULTS to inspect the monitor results.
- If MEAS are not within specification, repair has not been completed.
Verify that no DTCs are available.

Fig 1: Vehicle Drive Graph (Mode 3)
Courtesy of MAZDA MOTORS CORP.