Powertrain Control Module: Notes

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Mazda Tribute, 2003 Mazda Protege5, 2003 Mazda Protege, 2003 Mazda MX-5 Miata, and 2003 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: If PCM or PCM and immobilizer control unit are replaced, all keys must be programmed before starting vehicle. If not, damage to PCM will occur.

NOTE: Some models may be equipped with an immobilizer system. This system can be identified by the ignition key blanks. If the key ring hole on blank has no metal exposed, vehicle is equipped with system. The immobilizer system requires using a CODE WORD for reprogramming keys to PCM. The CODE WORD is only available to the dealer from Mazda.