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.
2012 Mazda CX-9 FWD V6-3.7LFACTORY OEM SERVICE PROCEDURE
Advanced Key ID Code Registration
ADVANCED KEY ID CODE REGISTRATION [ADVANCED KEYLESS ENTRY AND START SYSTEM]
CAUTION:
- Do not place the following devices in the vehicle while programming, otherwise programming cannot be performed.
- M-MDS
- Personal computer
- Device that can send/receive radio waves
- Verify that the other transmitter is not being operated around the servicing area during advanced key programming.
NOTE:
- Use the M-MDS and start programming if the condition corresponds to the following:
- One or No Programmed Advanced Keys
- Keyless control module is replaced
- If six advanced keys are already programmed, the programming mode does not activate. If programming is needed, use the M-MDS to erase the unnecessary advanced key programming.
With two programmed advanced keys
1. Bring the programmed advanced keys (2) and a unprogrammed advanced key into the vehicle.
2. Close all doors.
3. Insert the supplementary key into the ignition key cylinder.
NOTE:
- Complete the procedures up to Step 7 within 30 s after the supplementary key is inserted.
4. Turn the ignition switch to the ON position.
5. Press the UNLOCK button on advanced key 1.
6. Press the UNLOCK button on advanced key 2.
7. From the ignition switch in the ON position, switch the ignition switch in the order indicated below.
- ACC->ON->ACC->ON->ACC->ON
8. Open the driver-side front door, press the door switch twice, and then close the door.
NOTE:
- After Step 3 is completed and the advanced key programming mode is activated, the door lock actuator operates to lock, and then operates to unlock.
- If the door lock actuator does not operate, repeat the procedure from Step 2.
9. Press the UNLOCK button on the unprogrammed advanced key twice.
NOTE:
- After Step 8 is completed and the advanced key is programmed, the door lock actuator operates to lock, and then operates to unlock.
10. If programming more advanced keys, remove the supplementary key once, and then repeat the procedure from Step 2.
Using M-MDS
1. Fully lower the driver-side door glass.
2. Connect the M-MDS (IDS) to the DLC-2.
3. Set the M-MDS outside the vehicle with its cable passing through the door glass opening.
CAUTION:
- Cover the vehicle body with a clean rag so as not to damage the vehicle body with the cable.
4. After the vehicle is identified, select the following items from the initial screen of the M-MDS.
- When using an IDS (laptop PC)
- Select the "Body"
- Select the "Security"
- Select the "PATS Functions"
5. Select the following from the screen menu.
- Select the "Program Additional Advanced Key"
6. Perform the security access according to the directions on the M-MDS screen.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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