Engine Controls - Self-Diagnostics: Programming

CAUTION: If Powertrain Control Module (PCM) replacement is necessary, always ensure PCM electrical connectors and ground circuits are okay. If either are defective, repair and repeat testing to confirm PCM malfunction. On models equipped with engine immobilizer, if PCM is replaced, PCM must be programmed with proper ignition key code for engine immobilizer system. For programming procedures, see COMPUTER RELEARN PROCEDURES - MITSUBISHI article in GENERAL INFORMATION, or appropriate ENGINE IMMOBILIZER SYSTEMS article in ACCESSORIES & EQUIPMENT.