Mode 03 (EGR System, Variable Valve Timing, A/F Sensor Heater, HO2S Heater, A/F Sensor, HO2S and TWC Repair Verification Drive Mode)

Start the engine and warm it up completely.
Verify all accessory loads (A/C, headlights, blower fan, rear window defogger) are off.
Drive the vehicle as shown in the graph.

Courtesy of MAZDA MOTORS CORP.

*1: Accelerate to 89 km/h {55 mph}within 20 sin D position.

*2: Accelerate to 72 km/h {45 mph}within 15 sin D position.
To verify the completion of the drive mode, stop the vehicle and display the [Mode 1 Powertrain Data] of the ON-BOARD DIAGNOSTIC (OBD) TEST MODES using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM .)
- If the drive mode has been completed, [***_EVAL] or [***RDY] (each system completed) of the PID [***SUP] (with/without support for each system monitor) item indicating Yes changes from No to Yes.
- If the drive mode has not been completed, switch the ignition off and repeat the procedure from Step 3 again.
Access the DIAGNOSTIC MONITORING TEST RESULTS menu of GENERIC OBD-II FUNCTIONS to verify the monitor results. (See DIAGNOSTIC MONITORING TEST RESULTS [PCM .)
- If detected values are not within specification, repair has not been completed.
Verify that no DTCs are displayed.