2003 Mazda B4000 Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Spare Key Programming

NOTE:
  • This procedure is used when a customer needs to have an additional key programmed into the vehicle without erasing stored key codes, but does not have two programmed keys available. This procedure is also useful when attempting to determine if an ignition key is defective, as a new key can be installed without erasing keys or without having 2 programmed keys available.
    1. Before programming, the new key must have the correct mechanical cut for the ignition lock.
    2. If eight keys are already programmed, this procedure will not allow any further ignition keys to be programmed without erasing all stored key codes first. The number of keys programmed into the system can be determined using the PID NUMKEYS.
  1. Turn the ignition switch from the OFF position to the RUN position using the new, unprogrammed ignition key.
  2. Using the diagnostic tool service function card, select PCM from the menu. Follow the SECURITY ACCESS PROCEDURE to obtain security access. See SECURITY ACCESS-PROCEDURE  .
  3. From the diagnostic tool menu, select: IGNITION KEY CODE PROGRAM.
  4. Turn the ignition switch to the OFF position and disconnect the diagnostic tool.
  5. Attempt to start the engine with the new ignition key. The vehicle engine should start and run normally.
Factory Service Tools

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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.

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