No.5 Resetting Procedure for the Immobilizer System when Replacing the related parts (PCM, Keyless Control Module, Instrument cluster, or Steering Lock Unit): Procedure

Fig 1: Identifying Keys

Courtesy 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.
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. If the procedure is not followed, the engine may not be started.

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

8. Select "Parameter Reset" from the WDS or equivalent screen menu.
9. Perform security access again as indicated on the WDS or equivalent screen. (See SECURITY ACCESS PROCEDURE  .)
10. Select the replaced part as indicated on the WDS or equivalent screen.
    • When replacing only the PCM: Select "PCM".
    • When replacing only the instrument cluster: Select "HEC".
    NOTE:

    • At this time, do not select any other parts from the WDS or equivalent screen menu.
11. 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.
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 Steps  13 thru  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 thru  14 will not be possible. If this occurs, refer to 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: Identifying Security Light & Keyless Warning Light Blinking Pattern

    Courtesy 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 thru  21 using key 2 instead of key 1.
    NOTE:

    • Perform Steps  20 thru  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.