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.
2007 Infiniti M35 BaseFACTORY OEM SERVICE PROCEDURE
Precautions For Intelligent Key System
- In the Intelligent Key system of model Y50, the transponder (the chip for immobilizer ID verification) is integrated into the Intelligent Key. (For the conventional models, it is integrated into the mechanical key.) Therefore, the mechanical key cannot perform the ID verification, and thus it cannot start the engine. Instead of it, the immobilizer ID verification can be performed by inserting the Intelligent Key into the key slot, and then it can start the engine.
- When registering the Intelligent Key, 2 registration procedures (immobilizer ID registration and Intelligent Key ID registration) should be performed. The immobilizer ID registration is the procedure that registers the ID stored into the transponder (integrated into Intelligent Key) to the BCM. The Intelligent Key ID registration is the procedure that registers the ID to the Intelligent Key unit. Each registration is a different procedure.
- When performing the Intelligent Key ID registration only, the engine cannot be started by inserting the key into the key slot. When performing the engine immobilizer ID registration only, the engine cannot be started by the operation when carrying the key. The registrations of both systems should be performed.
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.