Mode 3 (HO2S & Heater, and TWC Repair Verification Drive Mode)

1. Access to RFC FLAG PID to confirm PCM adaptive memory status.
- If RFC FLAG PID is NO, perform Mode 1 first.
- If RFC FLAG PID is YES, go to next step.

2. Start the engine and warm up completely.
3. Verify all accessory loads (A/C, headlights, blower fan, rear window defroster) are off.




4. Drive the vehicle as shown in the graph. Driving condition before the constant speed driving is not specified.

5. Stop vehicle and access the ON BOARD SYSTEM READINESS menu of GENERIC OBD-II FUNCTIONS to check the Drive Mode completion status.
- If completed, RFC changes from NO to YES.
- If not completed, turn the ignition key off, then repeat Steps 2 to 4 at least one more time.

6. Access the DIAGNOSTIC MONITORING TEST RESULTS menu of GENERIC OBD-II FUNCTIONS to check the monitor results. If "MEASs" are not within specification, repair has not been completed.
7. Verify no DTCs are available.