Federal Emission Regulation Applicable Models.

1. Wait for 5 minutes until security light flashes slowly. (300 ms  ON- 300 ms  OFF - 1.2 s  ON- 1.2 s  OFF)
2. Input the code word as shown in the example below.
   Fig 1: Security Light Blinking Pattern - 3 And 1 Pattern

   Courtesy of MAZDA MOTORS CORP.
   1. Turn ignition switch to ON position while security light is off and count three illumination cycles. As the light goes out after the third illumination, turn key to LOCK position.
   2. Wait at least one illumination cycle and within 30 seconds  of going to LOCK position, turn ignition switch to ON position while security light is off and count one illumination cycle. As the light goes out after the first illumination, turn key to LOCK position.
   3. Repeat Step  2 for rest of six digits.
3. When code word is registered correctly in the PCM, the security light stops flashing and illuminates.
4. As soon as the security light stops flashing and illuminates, the following immobilizer system reprogram procedure should be started.
   NOTE:

   • If the code word is not input correctly, the security light goes out after all eight digits are input. In this case, perform the CODE WORD INPUT ERROR RECOVERY PROCEDURE .

Examples of incorrect input of code word 

• The security light flashes ten or more times while the ignition switch is at ON position.
  Fig 2: Security Light Blinking Pattern - Ten Flashes

  Courtesy of MAZDA MOTORS CORP.
• The ignition switch is turned to ON position and LOCK position while the security light is off.
  Fig 3: Security Light Blinking Pattern - Incorrect Flash

  Courtesy of MAZDA MOTORS CORP.
• The ignition switch is turned to LOCK position and ON position while the security light is on.
  Fig 4: Security Light Blinking Pattern - Incorrect Pause (1 Of 2)

  Courtesy of MAZDA MOTORS CORP.
• The ignition switch is turned to LOCK position and ON position while the security light is off.
  Fig 5: Security Light Blinking Pattern - Incorrect Pause (2 Of 2)

  Courtesy of MAZDA MOTORS CORP.
• The unmatched code word is input to the immobilizer unit.

Code word input error recovery procedure 

1. Turn ignition switch to ON position then back to LOCK position five times  (except PCM replacement) or six times  (PCM replacement). The key should not remain at ON position or LOCK position for more than 1 second.
2. Repeat the "CODE WORD INPUT PROCEDURE."