Setting the Code Number

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Complete each step (Steps 1-3) within 10 seconds or the setting procedure will be canceled.

Turn the ignition switch to ACC position and then turn off the audio unit.
First press the AUTO-M button, then simultaneously press channel button 6 for approximately 2 seconds until "CODE" appears on the display.

Fig 1: Pressing AUTO-M Button and Channel Button 6 Until "CODE" Appears On Display
Courtesy of MAZDA MOTORS CORP.
Press the AUTO-M button again, then simultaneously press channel button 6 until dashes appear on the display.

Fig 2: Pressing AUTO-M Button and Channel Button 6 Until Dashes Appear On Display
Courtesy of MAZDA MOTORS CORP.
Select a personal code number and record it before inputting it. If the number is input and then forgotten, it cannot be canceled, and if the unit is disconnected again, the audio unit will be inoperative.
Use channel buttons 1-4 to input the selected code number. Press button 1 for the first digit, 2 for the second, 3 for the third, and 4 for the last digit. Input the number within 10 seconds. If the display is deleted, repeat the procedure from Step 1.
NOTE:
- Perform Step 6 within 10 seconds after Step 5.
Fig 3: Inputting Code Number
Courtesy of MAZDA MOTORS CORP.
With the code number displayed, press the AUTO-M button, then simultaneously press channel button 6 for approximately 2 seconds. "CODE" will be displayed for approximately 5 seconds. After it disappears, the code number is set.
If "Err" (error) appears on the display, repeat the procedure from Step 1. If input error is repeated three times, turn the ignition switch to LOCK position and repeat the procedure from Step 1.

Fig 4: Pressing AUTO-M Button and Channel Button 6 Until "CODE" Appears On Display
Courtesy of MAZDA MOTORS CORP.