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 FX50FACTORY OEM SERVICE PROCEDURE
Section 86 (Security Control System)
WARNING: This page is about a different car, the 2011 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.
- Basic Inspection
- System Description
- Intelligent Key System/Engine Start Function
- System Diagram
- System Description
- Component Parts Location
- Component Description
- INFINITI Vehicle Immobilizer System-NATS
- Vehicle Security System
- Diagnosis System (BCM)
- Intelligent Key System/Engine Start Function
- DTC/Circuit Diagnosis
- DTC Index
- DTC U1000: Can Comm Circuit
- DTC U1010: Control Unit (Can)
- DTC P1610: Lock Mode
- DTC P1611: Id Discord, IMMU-ECM
- DTC P1612: Chain Of ECM-IMMU
- DTC P1614: Chain Of IMMU-Key
- DTC P1615: DIFFRENCE Of Key
- DTC B2190: NATS Antenna Amp
- DTC B2191: Difference Of Key
- DTC B2192: Id Discord, IMMU-ECM
- DTC B2193: Chain Of ECM-IMMU
- DTC B2195: Anti-Scanning
- DTC B2013: Id Discord, IMMU-STRG
- DTC B2014: Chain Of STRG-IMMU
- DTC B2555: Stop Lamp
- DTC B2556: Push-Button Ignition Switch
- DTC B2557: Vehicle Speed
- DTC B2560: Starter Control Relay
- DTC B2601: Shift Position
- DTC B2602: Shift Position
- DTC B2603: Shift Position Status
- DTC B2604: PNP Switch
- DTC B2605: PNP Switch
- DTC B2606: Steering Lock Relay
- DTC B2607: Steering Lock Relay
- DTC B2608: Starter Relay
- DTC B2609: Steering Status
- DTC B260B: Steering Lock Unit
- DTC B260C: Steering Lock Unit
- DTC B260D: Steering Lock Unit
- DTC B260F: Engine Status
- DTC B26E1: No Reception Of Engine Status Signal
- DTC B26E9: Steering Status
- DTC B26EA: Key Registration
- DTC B2612: Steering Status
- DTC B2617: Starter Relay Circuit
- DTC B2619: BCM
- DTC B261A: Push-Button Ignition Switch
- DTC B261E: Vehicle Type
- DTC B2108: Steering Lock Relay
- DTC B2109: Steering Lock Relay
- DTC B210A: Steering Lock Condition Switch
- DTC B210B: Starter Control Relay
- DTC B210C: Starter Control Relay
- DTC B210D: Starter Relay
- DTC B210E: Starter Relay
- DTC B210F: PNP/Clutch Interlock Switch
- DTC B2110: PNP/Clutch Interlock Switch
- Power Supply And Ground Circuit
- Hood Switch
- Headlamp
- Security Indicator Lamp
- Key Warning Lamp
- Intelligent Key System/Engine Start Function
- INFINITI Vehicle Immobilizer System-NATS
- Vehicle Security System
- Ecu Diagnosis Information
- Symptom Diagnosis
- Engine Does Not Start With Intelligent Key
- Steering Does Not Lock
- Engine Does Not Start When Intelligent Key Is Inserted Into Key Slot
- Security Indicator Lamp Does Not Turn On Or Blink
- Vehicle Security System Can Not Be Set
- Vehicle Security Alarm Does Not Activate
- Vehicle Security System Can Not Canceled
- Intelligent Key Insert Information Does Not Operate
- Precaution
- Removal And Installation
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.
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