No.3 Key Replacement Procedure (Clearing Previously Registered Key ID Numbers, Key Re-registration) Procedure

Fig 1: Identifying Key Replacement Procedure

Courtesy of MAZDA MOTORS CORP.

1. Have two or more keys (key 1, key 2) ready for registration after the clearing the key ID numbers.
2. Using key 1, turn the ignition switch to the ON position.
   NOTE:

   • Although the security light flashes and DTC 15 is displayed, this does not indicate an improper procedure. Continue to perform the procedure as indicated.
3. Connect the M-MDS to the DLC-2.
4. After the vehicle is identified, select the following items from the initialization screen of the M-MDS.
   • When using the IDS (laptop PC)
     1. Select the "Body".
     2. Select the "Security".
     3. Select the "PATS Functions".
   • When using the PDS (Pocket PC)
     1. Select the "Programming".
     2. Select the TATS Functions".
        Fig 2: View Of DLC-2 Connector

        Courtesy of MAZDA MOTORS CORP.
5. Then, select an item from the screen menu. "Ignition Key Code Erase and Program".
6. Perform security access as indicated on the M-MDS screen. (See NO.6 SECURITY ACCESS PROCEDURE .)
7. Perform the procedure according to the directions on the screen.