B1102 on 2021-2023 Kia Rio — Airbag/Restraint System Battery Voltage Low
1 vehicles · 1 makes · $120-$900 repair
Most Reported On
B1102 is an OBD-II diagnostic trouble code meaning “Airbag/Restraint System Battery Voltage Low.” B1102 is a manufacturer-specific body code that, on many Asian-make vehicles (e.g., Hyundai/Kia), indicates the airbag (SRS) control module detected battery/supply voltage below the required range to operate the restraint system correctly; on some GM applications it relates to an audio output circuit instead. In the SRS context, the module cannot guarantee proper airbag operation when voltage is too low, so the airbag warning light typically comes on. Because meaning differs by maker, confirm against your vehicle's service data. This code is most commonly reported on 2021-2023 Kia Rio, with repair costs ranging from $120 to $900.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose B1102, 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
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
FAQ
What does B1102 mean?
B1102 stands for "Airbag/Restraint System Battery Voltage Low." B1102 is a manufacturer-specific body code that, on many Asian-make vehicles (e.g., Hyundai/Kia), indicates the airbag (SRS) control module detected battery/supply voltage below the required range to operate the restraint system correctly; on some GM applications it relates to an audio output circuit instead. In the SRS context, the module cannot guarantee proper airbag operation when voltage is too low, so the airbag warning light typically comes on. Because meaning differs by maker, confirm against your vehicle's service data.
What are the most common causes of B1102?
The most common causes of B1102 are: Weak or failing battery, Faulty alternator or low charging-system output, Corroded or loose battery/ground connections, Voltage drop in the SRS module power supply circuit, Faulty airbag (SRS) control module, Parasitic drain or recent deep discharge. The specific cause varies by vehicle.
How much does it cost to fix B1102?
Repair costs for B1102 range from $120 to $900, depending on the vehicle and root cause.
Which vehicles are affected by B1102?
Au7o has documented B1102 across 1 vehicle models from 1 manufacturers: Kia.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.