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.
2012 Infiniti M56 V8-5.6L (VK56VD)FACTORY OEM SERVICE PROCEDURE
Intelligent Key Interlock Function
SYSTEM
AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : Intelligent Key Interlock Function
DESCRIPTION
- Setting value of air conditioning system when ignition switch is previously OFF can be memorized for each
Intelligent Key. Air conditioning system is automatically operated by the setting value.
NOTE:
Setting value can be memorized for up to 3 Intelligent Keys.
- Interlock items are as per the following table.
Operation Description
Memory
1.Unlock door using Intelligent Key or driver door request switch.
2.BCM transmits Key ID signal to A/C auto amp. via CAN communication line.
3.When ignition switch turns OFF, A/C auto amp. memorizes setting information (setting temperature, air inlet status, and others) of air conditioning system to memory for each Key ID.
Readout
1.Unlock door using Intelligent Key or driver door request switch.
2.BCM transmits Key ID signal to A/C auto amp. via CAN communication line.
3.When ignition switch turns ON, A/C auto amp. operates automatically air conditioning system according to setting information of Key ID that is received.
NOTE:
When Intelligent Key interlock function operates, "Connection with the key has been done." is displayed.
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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