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HOMESERVICE MANUALSMAZDA20066 I, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEDOOR LOCKSSECURITY SYSTEM AND LOCKS SYSTEMIMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [WITH ADVANCED KEYLESS SYSTEM]NO. 5 RESETTING PROCEDURE FOR THE IMMOBILIZER SYSTEM WHEN REPLACING THE PCM, KEYLESS CONTROL MODULE, OR STEERING LOCK UNITPROCEDURE
2006 Mazda 6 i, 4D Sedan, Automatic

No. 5 Resetting Procedure for the Immobilizer System when Replacing the PCM, Keyless Control Module, or Steering Lock Unit: Procedure

2006 Mazda 6 i, 4D Sedan, AutomaticSECTION Procedure
Fig 1: Replacement Key
G04327379Courtesy of MAZDA MOTORS CORP.
  1. Prepare two or more keys to be programmed after the key ID number is cleared.
  2. Connect the WDS or equivalent to the DLC-2. (See WDS or Equivalent Connecting Procedure ).
  3. Using key 1, turn the ignition switch to the ON position.
    NOTE:
    • Although the security light flashes and DTC 15 or 21 is displayed, this does not indicate an improper procedure. Continue to perform the procedure as indicated.
  4. Verify that the keyless warning light illuminates for approx. 3 s  and then goes out.
  5. Select "BODY/SECURITY/PATS (immobilizer) function" from the WDS or equivalent screen menu.
  6. Select "Ignition key ID number clearing" from the WDS or equivalent screen menu and perform the procedure according to the WDS or equivalent screen.
  7. Perform the security access according to the directions on the WDS or equivalent screen. (See SECURITY ACCESS PROCEDURE ).
    CAUTION:
    • The WDS or equivalent displays "At least two or more keys must be programmed", however, do not perform the key programming and proceed to Step  8 or  9. If the procedure is not followed, the engine may not be started.

      The key programming procedure is performed at Step  12-- 15.

  8. Perform the card key programming, (when the keyless control module is replaced) (See CARD KEY ID CODE REGISTRATION [WITH ADVANCED KEYLESS SYSTEM] ).
  9. Perform the steering lock unit programming, (when either the keyless control module or steering lock unit is replaced) (See STEERING LOCK UNIT ID CODE REGISTRATION [WITH ADVANCED KEYLESS SYSTEM] ).
  10. After verifying that the PATS function menu is displayed again on the WDS or equivalent screen, select "Finish (this menu)" to finish the WDS or equivalent procedure.
  11. After Step 11, wait 5 s or more  and then turn the ignition switch to the LOCK position.
  12. Using key 1, turn the ignition switch to the ON position.
  13. After verifying that the security light and keyless warning light illuminate for 3 s or more, turn the ignition switch to the LOCK position and remove key 1.
    NOTE:
    • Although the security light flashes and DTC 21 is displayed, this does not indicate an improper procedure. Continue to perform the procedure as indicated.
  14. Using key 2, turn the ignition switch to the ON position.
  15. Verify that the security light and keyless warning light illuminate for approx. 3 s,  and then goes out.
  16. After verifying that the security light goes out, turn the ignition switch to the LOCK position using key 2, and then remove key 2.
  17. If additional keys need to be programmed, repeat Steps  15-17 with the additional key to be programmed being key 3. If the ignition switch is held in the ON position for 1 min or more,  additional key programming according to Steps  15--17 will not be possible. If this occurs, refer to " NO.1 ADDITIONAL KEY PROGRAMMING PROCEDURE (USING TWO VALID KEYS) " to program any additional keys.
  18. Start the engine with key 1.
  19. Verify that the security light and keyless warning light operate as follows:
    • From the point when the ignition switch is turned to the ON position, the security light illuminates for approx. 3 s  , and goes out.
    • The keyless warning light illuminates when the ignition switch is turned to the ON position, and the light goes out after approx. 1 s  , and then displays the number of the programmed keys.
      Fig 2: Identifying Blinking Pattern
      G04327380Courtesy of MAZDA MOTORS CORP.
  20. After verifying that the keyless warning light goes out, turn the ignition switch to the LOCK position using key 1, and then remove the key.
  21. Repeat Steps  19--21 using key 2 instead of key 1.
    NOTE:
    • Perform Steps  19--21 as well when three or more keys are to be programmed.
  22. Start the engine using the card key.
    CAUTION:
    • Remove any key from the key cylinder.
  23. Verify that the security light and keyless warning light operate as follows:
    • From the point that ignition switch is turned to the ON position, the security light illuminates for approx. 3 s  , and goes out.
    • The keyless warning light illuminate when the ignition switch is turned to the ON position for approx. 1 min,  and goes out.
  24. After verifying that the keyless warning light goes out, turn the ignition switch to the LOCK position.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.