Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1999 Infiniti Q45 BaseFACTORY OEM SERVICE PROCEDURE
Without NISSAN Consult Scan Tool
- New identity code must be manually entered whenever replacing remote controller or BCM, or when adding additional remote controller(s). To enter identity code, go to next step.
- Close all doors, and lock driver's door. Erase original identity code(s) by inserting and removing key from ignition switch more than 6 times within 10 seconds. Turn ignition switch to ACC position.
- Push any lock button on new remote controller once. Identity code for new remote controller has now been entered.
- To enter additional remote controller identity code(s), unlock and lock with driver's lock knob switch and repeat step 3 . A maximum of 4 remote controller identity codes can be entered. If same identity code is entered more than once, entry is ignored. To exit programming (identity entry) mode, open driver's side door and remove key from ignition switch.
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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