B2190: Manufacturer-Specific Body Code (definition varies: anti-theft antenna / window switch circuit)
2 vehicles · 2 makes · $600-$1,800 repair
Most Reported On
B2190 is an OBD-II diagnostic trouble code meaning “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. This code is most commonly reported on 2008-2013 Nissan Rogue, and 2014-2016 Infiniti QX50, with repair costs ranging from $600 to $1,800.
Common Causes
Typical Repair Cost
Based on 2 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose B2190, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
What does B2190 mean?
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.
What are the most common causes of B2190?
The most common causes of B2190 are: 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. The specific cause varies by vehicle.
How much does it cost to fix B2190?
Repair costs for B2190 range from $600 to $1,800, depending on the vehicle and root cause.
Which vehicles are affected by B2190?
Au7o has documented B2190 across 2 vehicle models from 2 manufacturers: Infiniti, Nissan.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.