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ECM Programming

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2004 Infiniti QX56, 2004 Infiniti Q45, 2004 Infiniti M45, 2004 Infiniti I35, and 2004 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

After disconnecting battery or replacing ECM, drive vehicle to enable ECM to relearn driveability. Inform your customer that they may experience driveability different from what they are accustomed to until ECM completes relearn function.

ECM is a part of Nissan Anti-Theft System (NATS). Replacement ECM must have immobilizer code rewritten, using CONSULT-II tester. To perform rewrite procedure requires the vehicle, all keys and a CONSULT-II tester with a NATS Program Card (E960U). Any key not learned during rewrite procedure, will not start vehicle. Follow CONSULT-II tester instructions to rewrite immobilizer code.

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