B2190 on Infiniti
Manufacturer-Specific Body Code (definition varies: anti-theft antenna / window switch circuit)
B2190 on Infiniti vehicles indicates manufacturer-specific body code (definition varies: anti-theft antenna / window switch circuit). Au7o has documented this code across 1 Infiniti model — most commonly on QX50. B2190 is a manufacturer-specific body code, so its meaning varies by maker. On Nissan/Infiniti it commonly relates to the NATS (anti-theft) antenna amplifier circuit, while on GM vehicles it has been associated with a window or seat switch circuit fault. In general it points to a body-control-module input or convenience/security circuit that is out of range or open/shorted. The exact component must be confirmed against the specific vehicle's service information. Typical repair costs on Infiniti range from $600 to $1,800, depending on the specific model and root cause.
Common Causes of B2190
- •Faulty anti-theft (immobilizer) antenna or amplifier (Nissan/Infiniti)
- •Damaged or open switch circuit wiring
- •Corroded or loose connector at the body control module
- •Failed switch or input component
- •Short to power or ground in the affected circuit
- •Body control module fault
B2190 on Infiniti by Model
Infiniti QX50(1 issue)
- Steering Wheel Lock / Ignition No-Start from Electronic Steering Lock Failure2014-2016
Infiniti/Nissan vehicles using the electronic steering column lock system have a well-documented failure mode where the vehicle will not recognize the lock state, leaving the car unable to start even though the battery and key fob appear normal. The issue is widely discussed across Nissan/Infiniti owner communities and tied to the steering lock control unit used on related FM-platform vehicles. Owners typically report a sudden no-start with the steering wheel locked or the ignition staying in ACC/ON behavior without cranking.
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View B2190 across all makes →Frequently Asked Questions
What does B2190 mean on Infiniti?▼
B2190 stands for "Manufacturer-Specific Body Code (definition varies: anti-theft antenna / window switch circuit)." B2190 is a manufacturer-specific body code, so its meaning varies by maker. On Nissan/Infiniti it commonly relates to the NATS (anti-theft) antenna amplifier circuit, while on GM vehicles it has been associated with a window or seat switch circuit fault. In general it points to a body-control-module input or convenience/security circuit that is out of range or open/shorted. The exact component must be confirmed against the specific vehicle's service information. On Infiniti specifically, this code is documented across 1 model.
What causes B2190 on Infiniti vehicles?▼
Common causes on Infiniti: Faulty anti-theft (immobilizer) antenna or amplifier (Nissan/Infiniti), Damaged or open switch circuit wiring, Corroded or loose connector at the body control module, Failed switch or input component, Short to power or ground in the affected circuit. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix B2190 on a Infiniti?▼
Repair costs on Infiniti range from $600 to $1,800, depending on the specific model and root cause.
Which Infiniti models have B2190 documented?▼
Au7o has documented B2190 on 1 Infiniti model: QX50.