No.3 Key Replacement Procedure (Clearing Previously Programmed Key ID Numbers, Key Re-program): Procedure

Fig 1: Key Replacement Procedure (Key Reprogram)

Courtesy 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.
   NOTE:

   • Although the security light starts flashing and DTC 15 is displayed after approx. 1 min, this does not indicate an improper procedure. Continue to perform the procedure as indicated.
4. After the vehicle is identified, select the following items from the initial screen of the M-MDS.
   • When using the IDS (laptop PC)
     • Select the "Toolbox" tab.
     • Select "Body".
     • Select "Security".
   • When using the PDS (Pocket PC)
     • Select "Programming".
5. Then, select items from the screen menu in the following order.
   1. Select "PATS Functions".
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 SECURITY ACCESS PROCEDURE .)
8. After verifying that the PATS function menu is displayed again on the M-MDS or equivalent screen, select "Exit (From This Menu)" to finish the M-MDS procedure.
9. After Step 8, wait 5 s or more and then turn the ignition switch to the LOCK position using key 1.
10. Using key 1, turn the ignition switch to the ON position.
11. After verifying that the security light illuminates for 3 s or more, turn the ignition switch to the LOCK position and remove key 1.
    NOTE:

    • Although the security light remains illuminated and DTC 21 is displayed after approx. 1 min, this does not indicate an improper procedure. Continue to perform the procedure as indicated.
12. Using key 2, turn the ignition switch to the ON position.
13. Verify that the security light illuminates for approx. 3 s and then turns off.
14. After verifying that the security light turns off, turn the ignition switch to the LOCK position and remove key 2.
15. If programming one more keys, repeat Steps 12 to 14 with a key to be programmed as key 3. Steps 12 to 14 must be performed within 1 min for each key. If the vehicle is left with the ignition switch in the ON position for 1 min or more, additional key programming according to Steps 12 to 14 is disabled. If this occurs, refer to "NO.1 ADDITIONAL KEY REGISTRATION PROCEDURE (USING TWO VALID KEYS) " to register any additional keys.
16. Verify that the all keys can start the engine for 5 s or more  after the procedure.