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 315 (CONTROL SYSTEM (COMMUNICATION NETWORK))GENERIC ELECTRONIC MODULE (GEM) PROGRAMMING - WDS
2011 Mazda 3 Mazdaspeed, 2.3 3
Generic Electronic Module (Gem) Programming - WDS
2011 Mazda 3 Mazdaspeed, 2.3 3SECTION Generic Electronic Module (Gem) Programming - WDS
WARNING: This page is about a different car, the 2003 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- This procedure was performed using WDS B18 software. Later software versions may have a slightly different screen order or content.
- Connect WDS DLC cable to vehicle's DLC connector (lower portion of dash in front of driver).
- Press "16 PIN", "All except those below". Press tick.
- Screen shows cable hookup. Turn ignition switch to ON. Press tick.
- Screen shows WDS communicating with PCM "progress bar" and "Operation in progress".
- Wait until WDS finishes collection of PCM information (hard drive light quits flashing). Then the "Vehicle Specification" screen appears with VIN # information. It asks you "Is this correct?" Press "Yes" if information is correct.
- Screen appears to fill out R.O. information and mileage. Fill out the information (or skip this). Press tick.
- Screen now returns to the "Vehicle Specification Screen".
- Now press the "tools" tab on the top, then "Module Programming". Press tick.
- Screen will show "Please wait" then another menu will appear:
- Programmable Module Installation
- Module Reprogramming
- Programmable Parameters
- Press "Programmable Module Installation", then press "GEM". Press tick.
- Screen shows "Turn ignition switch to OFF (0 Position)". Turn ignition switch to the OFF position. Press tick.
- Screen shows "Install a new module in vehicle". Install a new module. Press tick.
- Screen shows "Turn ignition switch to ON". Turn ignition switch to the ON position. Press tick.
- Screen shows "GEM module configuration complete". Press tick.
- Screen shows "Turn ignition switch to OFF (0 Position)".
- Press "Select Systems Options" or "Menu" ICON (at the upper right hand side of the screen). Press EXIT" and press the green tick. This will return you to the vehicle specifications screen.
- Now press the "Close session" ICON (lower left hand side of screen, 3rd ICON) and press "delete (deletes session)". Press tick.
- Disconnect WDS cable. GEM module is now programmed.
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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.