Mazda 6 Quiz
Body electrical system

Anti-theft system

In this manual: Body electrical system
General information — 42Engine — 23Lubrication system — 10Cooling system — 9Fuel and emission control systems — 161Engine electrical system — 17Clutch — 21Manual transaxle — 10Automatic transaxle — 110Front and rear axles — 20Steering system — 15Braking system — 104Suspension — 34Body — 201Body electrical system — 287Heater and air conditioner systems — 89Technical data — 1Special tools — 1
~4min read
Alarm Conditions
  • If the anti-theft system protection has been activated, any one of the following conditions will trigger the system:

- Disconnected battery cable

- Discharged battery

- Disconnected audio unit connectors

  • If the system is triggered, the audio unit will then be inoperative when it is reconnected to a power source, and code will flash on the display until the preselected code number is input. If the anti-theft system is triggered, follow the procedures in Canceling Anti-theft Operation to reset the unit.

Setting the Code Number Complete each step (Steps 1-3) within 10 seconds

or the setting procedure will be canceled.

1. Turn the ignition switch to ACC position and then turn off the audio unit.

2. First press the AUTO-M button, then simultaneously press channel button 6 for approximately 2 seconds

until CODE appears on the display.


3. Press the AUTO-M button again, then simultaneously press channel button 6 until bars appear on the display.


4. 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.

5. 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.
6. 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.


7. 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.

Canceling the Code Number Complete each step (Steps 1-3) within 10 seconds

or the canceling procedure will be canceled.

1. Turn the ignition switch to ACC position and then turn off the audio unit.

2. First press the AUTO-M button, then simultaneously press channel button 6 for approximately 2 seconds

until CODE appears on the display.


3. Press the AUTO-M button again, then simultaneously press channel button 6 until bars appear on the display.


4. Use channel buttons 14 to input the current 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 5 within 10 seconds after Step 4.
5. 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 canceled.


6. If Err (error) appears on the display, repeat the procedure from Step 4.

Canceling Anti-theft Operation

Properly input the selected code number to deactivate the anti-theft system and resume normal audio operation.

1. Turn the ignition switch to ACC position. (CODE will flash on the display.)

2. First press the AUTO-M button, then simultaneously press channel button 6 for approximately 2 seconds

until bars appears on the display.


Note
  • Perform Step 3 within 10 seconds after Step 2.
3. Use channel buttons 14 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.


Caution
  • Three consecutive errors, including turning the ignition switch to LOCK position and disconnecting the audio unit, will activate the anti-theft system and render the audio unit completely inoperative.
4. With the code number displayed, press the AUTO-M button, then simultaneously press channel button 6 for approximately 2 seconds. CODE will flash for approximately 5 seconds.\

5. If Err (error) appears on the display, repeat the procedure from Step 1.

Test yourself

A quick Mazda 6 quiz: every answer comes with an explanation and a link to the manual page.