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 DIAGNOSISBODY & FRAMEDOOR LOCKSSECURITY SYSTEM AND LOCKS SYSTEMKEYLESS CONTROL MODULE REMOVAL/INSTALLATION

2011 Mazda 3 Mazdaspeed, 2.3 3

Keyless Control Module Removal/Installation

2011 Mazda 3 Mazdaspeed, 2.3 3SECTION Keyless Control Module Removal/Installation

If the keyless control module is replaced, always perform the following procedure.
- Vehicles with immobilizer system
  - Keyless Control Module Configuration (See KEYLESS CONTROL MODULE CONFIGURATION ).
  - Immobilizer System-related Parts Programming [No. 4 Programming Procedure Due to Keyless Control Module Replacement] (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] ).
- Vehicles without immobilizer system
  - Keyless Control Module Configuration (See KEYLESS CONTROL MODULE CONFIGURATION ).
  - Advanced Key Id Code Registration (See ADVANCED KEY ID CODE REGISTRATION ).
  - Steering Lock Unit Id Code Registration (See TRANSMITTER ID CODE REGISTRATION ).
Disconnect the negative battery cable.
Remove the following parts:
1. Passenger-side front scuff plate (See FRONT SCUFF PLATE REMOVAL/INSTALLATION ).
2. Passenger-side front side trim (See FRONT SIDE TRIM REMOVAL/INSTALLATION ).
3. Grove compartment (See GLOVE COMPARTMENT REMOVAL/INSTALLATION ).
4. Passenger-side lower panel (See LOWER PANEL REMOVAL/INSTALLATION ).
Remove in the nuts.

Fig 1: Keyless Control Module And Nuts With Torque Specifications
Courtesy of MAZDA MOTORS CORP.
Disconnect the connector.

Fig 2: Identifying Keyless Control Module Connector
Courtesy of MAZDA MOTORS CORP.
Remove the Keyless control module.
Install in the reverse order of removal.

RENDER: 1.0x

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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.