No.5 Replacing Only Key: Procedure

2013 Mazda 3 Mazdaspeed, 2.3L Eng VIN 3SECTION Procedure
Fig 1: No.5 Replacing Only Key Procedure Chart
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STEP Procedure Action after procedure
1 REPLACE THE KEY 
Replace the key.
Go to the next step.
2 PROGRAM/CLEAR AUXILIARY KEY 
  • Remove the valid keys and the valid advanced keys from the vehicle (keep them 1 m or more from the vehicle) and switch the ignition ON according to the directions on the M-MDS screen. Select, "There is no programmed ignition key and programmed advanced key" from the M-MDS (IDS) screen.
    CAUTION:
    • If the ignition is switched ON by selecting "FORCED IGNITION ON", the engine cannot be started.
    • Although the security light or the keyless warning light illuminates or flashes, this does not indicate an improper procedure. Continue to perform the procedure as indicated.
  • After the vehicle is identified, select the following items from the initialization screen of the IDS.
    • Select "Body".
    • Select "Security".
    • Select "PATS Functions".
  • Perform the security access according to the directions on the M-MDS (IDS) screen.
Go to the next step.
3 PERFORM IGNITION KEY ID NUMBER CLEARING 
  • Select "Ignition Key Code Erase and Program" from the M-MDS (IDS) screen menu.
  • Clear the ignition key ID number according to the directions on the M-MDS (IDS).
Go to the next step.
4 PERFORM IGNITION KEY ID NUMBER PROGRAMMING 
  • Program two keys according to the directions on the M-MDS (IDS).
  • After verifying that the PATS function menu is displayed again on the M-MDS (IDS) screen, select "Finish (this menu)".
  • Switch the ignition off (LOCK).
  • Disconnect the M-MDS (IDS) from the DLC-2.
Go to the next step.
5 ESTABLISH IMMOBILIZER SYSTEM WITH KEY 1 
NOTE:
  • By starting the engine, the immobilizer system is established and key programming is finished.
  • Start the engine using key 1.
  • Verify that the security light and keyless warning light operate as shown in the following figure.
  • Switch the ignition off (LOCK) and remove key 1.
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.