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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 657 (SECURITY SYSTEM AND LOCKS SYSTEM)IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING[WITH ADVANCED KEYLESS SYSTEM]NO.5 RESETTING PROCEDURE FOR THE IMMOBILIZER SYSTEM WHEN REPLACING THE RELATED PARTSPROCEDURE
2008 Mazda 6 s Sport, 4D Hatchback, Standard

No.5 Resetting Procedure for the Immobilizer System when Replacing the related parts: Procedure

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Procedure
WARNING: This page is about a different car, the 2008 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Keys For Registration
G04928946Courtesy of MAZDA MOTORS CORP.
  1. Prepare two or more keys to be programmed after the key ID number is cleared.
  2. Connect the M-MDS to the DLC-2. (See M-MDS CONNECTING PROCEDURE .)
  3. Using key 1, turn the ignition switch to the ON position.
  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 M-MDS screen menu.
  6. Select "Ignition key CODE erase" from the M-MDS screen menu and perform the procedure according to the M-MDS screen.
  7. Perform the security access according to the directions on the M-MDS screen. (See No.6 Security Access Procedure  .)
    CAUTION:
    • The M-MDS displays "At least two or more keys must be programmed", however, do not perform the key programming and proceed to Step 8. If the procedure is not followed, the engine may not be started.

    The key programming procedure is performed at Step 13-16.

  8. Select "Parameter Reset" from the M-MDS screen menu.
  9. Perform security access again as indicated on the M-MDS screen. (See No.6 Security Access Procedure  .)
  10. Select the replaced part as indicated on the M-MDS screen.
    • When replacing only the PCM: Select "PCM".
    • When replacing only the keyless control module: Select "RKE".
    NOTE:
    • At this time, do not select any other parts from the M-MDS screen menu.
  11. After verifying that the PATS function menu is displayed again on. the M-MDS screen, select "Finish (this menu)" to finish the M-MDS procedure.
  12. After Step 11, wait 5 s or more  and then turn the ignition switch to the LOCK position.
  13. Using key 1, turn the ignition switch to the ON position.
  14. 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.
  15. Using key 2, turn the ignition switch to the ON position.
  16. Verify that the security light and keyless warning light illuminate for approx. 3 s  , and then goes out.
  17. After verifying that the security light goes out, turn the ignition switch to the LOCK position using key 2, and then remove key 2.
  18. If additional keys need to be programmed, repeat Step 13- 14 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 13- 14 will not be possible. If this occurs, refer to "09-14-41 NO.1 ADDITIONAL KEY PROGRAMMING PROCEDURE  (Using Two Valid Keys)" to program any additional keys.
  19. Start the engine with key 1.
  20. 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: Security Light & Keyless Warning Light Blinking Pattern
    G04928947Courtesy of MAZDA MOTORS CORP.
  21. 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.
  22. Repeat Steps 20- 21 using key 2 instead of key 1.
    NOTE:
    • Perform Steps 20- 21 as well when three or more keys are to be programmed.
  23. Start the engine using the card key.
    CAUTION:
    • Remove any key from the key cylinder.
  24. 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.
  25. 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.