DTC Clearing Procedure

Start the on-board diagnostic test mode.
First press the POWER button and hold it, then press AUDIO CONT button for 2 seconds or more.

Fig 1: Identifying POWER Button And AUDIO CONT Button
Courtesy of MAZDA MOTORS CORP.
CAUTION:
- Before clearing the DTCs, be sure to enter all of them displayed in the on-board diagnostic test mode in the Audio Exchange Order Form.
To stop the on-board diagnostic test mode, turn the ignition switch to the LOCK position.