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
Seat Belt Control System
- Basic Inspection
- System Description
- DTC/Circuit Diagnosis
- DTC U1000: Can Comm Circuit
- DTC B2451: Seat BLT MTR Dr CIRC
- DTC B2452: Seat BLT MTR As CIRC
- DTC B2453: BR Stroke Sen CIRC
- DTC B2454: Seat BLT PWR Dr CIRC
- DTC B2455: Control Unit Dr
- DTC B2456: Seat BLT PWR As
- DTC B2457: Control Unit As
- DTC B2458: Local Comm
- DTC B2461: VHCL Speed Signal
- DTC B2462: VHCL Distance Signal
- DTC B2466: Dr/As Control Unit
- DTC B2470: SYS Heat PROTC Dr
- DTC B2471: SYS Heat PROTC As
- DTC U0126: St ANG Sen Sig
- DTC U0428: STRG ANGL Cal
- Power Supply And Ground Circuit
- Seat Belt Buckle Switch (Driver Side)
- Seat Belt Buckle Switch (Passenger Side)
- Seat Belt Warning Lamp Circuit
- Seat Belt Warning System
- Ecu Diagnosis Information
- Symptom Diagnosis
- Precaution
- Periodic Maintenance
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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