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.

1997 Infiniti Q45 BaseFACTORY OEM SERVICE PROCEDURE

Component Locations

COMPONENT LOCATIONS

Component	Location
Body Control Module (BCM)	Behind Instrument Panel, Next To Steering Column
Data Link Connector (DLC)	Next To Hood Release Handle
LCU01	In Driver's Door
LCU02	In Right Front Door
LCU03	In Right Rear Door
LCU04	In Left Rear Door

Factory Service Tools

Use the Manual With the Right Hardware

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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.