Security System and Locks System: Maintenance Mazda CX-9 I

No. 6 Resetting Procedure for the Immobilizer System when Replacing the PCM

Scheme 74

1. Connect the M-MDS to the DLC-2. See «M-MDS CONNECTING PROCEDURE»(ref-345344-S31867187712009102000000) .
2. Using the key 1, turn the ignition switch to the ON position. NOTE: Although the security light remains illuminated and DTC 23 is displayed after approx. 1 min, this does not indicate an improper procedure. Continue to perform the procedure as indicated.
3. After the vehicle is identified, select the following items from the initialization screen of the M-MDS. When using the IDS (laptop PC) Select "Body". Select "Security". When using the PDS (Pocket PC) Select "Programming".
4. Then, select items from the screen menu in the following order. Select "PATS Functions".
5. Select "Parameter Reset" from the M-MDS screen menu and perform the procedure according to the M-MDS screen
6. Perform the security access according to the directions on the M-MDS screen. See «SECURITY ACCESS PROCEDURE»(ref-345344-S05059472752009102000000) .
7. Select the replaced parts according to the directions on the M-MDS. If the PCM is replaced: Select "PCM". NOTE: At this time, do not select the other parts from the M-MDS menu.
8. After verifying that the PATS function menu is displayed again on the M-MDS 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.
10. Disconnect the M-MDS from the DLC-2.
11. Using key 1, turn the ignition switch to the ON position.
12. Verify that the security light illuminates for approx. 3 s and then turns off.
13. After verifying that the security light turns off, turn the ignition switch to the LOCK position.
14. Verify that the all keys can start the engine for 5 s or more after the procedure.