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.
Clearing Advanced Key
2010 Mazda 3 L4-2.5LSECTION Clearing Advanced Key
CLEARING ADVANCED KEY
1. Fully lower the driver-side door glass.
2. Connect the M-MDS to the DLC-2.
3. Pull out the M-MDS cable from the door glass opening and set the M-MDS outside the vehicle.
CAUTION:
- Protect the cable and body contact area with a clean rag, otherwise they could be damaged.
4. 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".
- Select "PATS Functions".
- When using the PDS (Pocket PC)
- Select "All Tests and Calibrations".
- Select "PATS Functions".
5. Then, select items from the screen menu in the following order.
- Select "Advanced Key Code Erase and Program".
6. Perform the security access according to the directions on the M-MDS screen.
RENDER: 1.0x
NO RELATED
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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.