2003 Mazda B2300 Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Key Programming Using Diagnostic Equipment

NOTE:
  • This procedure is used when a customer needs keys programmed into the system and does not have two programmed ignition keys available. This procedure is also useful when programmed ignition key(s) have been lost and/or the ignition switch assembly has been replaced, and it is desired to erase key(s) from the passive anti-theft system (PATS) memory.
    1. This procedure will erase all programmed ignition keys from the vehicle memory and the vehicle will not start until two keys have been reprogrammed to the vehicle.
    2. Two PATS encoded key with the correct mechanical cut must be available to perform this procedure. One or both of them may be the customer's original keys.
    3. If additional keys are to be programmed, see KEY PROGRAMMING - PROGRAM A KEY USING TWO PROGRAMMED KEYS  . If the remaining keys are with the customer and are not available with the vehicle, then instruct the customer to refer to the Owner's Guide under "Programming Spare Keys" for instructions on programming the remaining keys.
  1. Turn the ignition switch from OFF to RUN.
  2. Using the diagnostic tool, follow the ANTI-THEFT SECURITY ACCESS to obtain security access.
  3. From diagnostic tool menu, select IGNITION KEY CODE ERASE.
    NOTE:
    • DO NOT select any additional commands from this menu.
  4. Turn the ignition switch to OFF and disconnect diagnostic tool.
  5. Insert the first encoded key into the ignition lock cylinder and turn the switch to RUN for three seconds.
  6. Insert the second encoded key into the ignition lock cylinder and turn the switch to RUN for three seconds.
  7. Remove the second encoded key from the ignition lock cylinder.
  8. The vehicle should now start with both ignition keys.
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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