Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMAZDA20113 MAZDASPEED, 2.3 3REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 652 (SECURITY SYSTEM AND LOCKS SYSTEM)IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [WITH KEYLESS ENTRY SYSTEM]SELECTION OF PROCEDURE FOR IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING
2011 Mazda 3 Mazdaspeed, 2.3 3
Selection Of Procedure For Immobilizer System-Related Parts Programming
2011 Mazda 3 Mazdaspeed, 2.3 3SECTION Selection Of Procedure For Immobilizer System-Related Parts Programming
WARNING: This page is about a different car, the 2011 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
- Verify that the room fuse is equipped.
- Select the applicable programming procedure from the service content of the immobilizer system-related parts.
Immobilizer System-Related Parts Service and Programming Procedure Table
KEY PROGRAMMING PROCEDURE
| No. | Service | Programming procedure | |
|---|---|---|---|
| 1 | Additional key programming | Have two or more valid keys | (See No. 1 ADDITIONAL KEY PROGRAMMING PROCEDURE (USING TWO VALID KEYS) .) |
| 2 | Have one valid key or none | (See NO. 2 ADDITIONAL KEY PROGRAMMING PROCEDURE (USING THE M-MDS) .) | |
| 3 | Additional key programming procedure setting | Disable programming using valid keys | (See No. 3 ADDITIONAL KEY PROGRAMMING PROCEDURE CHANGING .) |
| Enable programming using valid keys | |||
| 4 | Programming due to PCM replacement | (See No. 4 PROGRAMMING PROCEDURE DUE TO PCM REPLACEMENT .) | |
| 5 | Programming due to keyless control module replacement | (See No. 5 PROGRAMMING PROCEDURE DUE TO KEYLESS CONTROL MODULE REPLACEMENT .) | |
| 6 | Programming due to simultaneous replacement of immobilizer system-related parts
|
(See No. 6 PROGRAMMING PROCEDURE DUE TO SIMULTANEOUS REPLACEMENT OF IMMOBILIZER SYSTEM-RELATED PARTS (PCM AND KEYLESS CONTROL MODULE) .) | |
| 7 | Programming due to coil antenna replacement | Programming of immobilizer system-related parts is not necessary | |
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When to See a Mechanic
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.