B141B on 2021-2023 Ford Bronco — Manufacturer-Specific Body Control Code
1 vehicles · 1 makes
How to diagnose and fix B141B: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
Ford Bronco · 2021–2023
A documented Bronco safety issue involved front seat belt pretensioners that may not deploy properly in a crash. This defect increases injury risk because the restraint system may not tighten the belt as intended during impact. The issue is recall-documented and has been discussed by owners receiving recall notices and dealer repairs.
Common Symptoms
- Recall notice received
- Airbag or seat belt warning light
- Concern about restraint system readiness
- Stored SRS fault codes
How to Fix
Check VIN status for open recall campaigns and have the pretensioner assemblies inspected and replaced by a Ford dealer if applicable. If the airbag light is on, scan the RCM/SRS system for stored faults before replacing components. After repair, confirm the restraint system passes self-test and no warning indicators remain.
Sources for this issue (1)
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B141B code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does B141B mean?
B141B stands for "Manufacturer-Specific Body Control Code." B141B is a manufacturer-specific body (B-series) diagnostic trouble code with no standardized SAE definition; it appears in maker databases such as Jaguar/Land Rover and its meaning varies by vehicle. It generally indicates a body, comfort, convenience, or safety module detected a circuit or component reading outside the expected range. The exact subsystem cannot be confirmed without the vehicle make/model and factory service data. A scan tool with manufacturer-specific definitions is needed to interpret it accurately.
What are the most common causes of B141B?
The most common causes of B141B are: Faulty body-system sensor or actuator for the affected circuit, Damaged or chafed wiring in the related harness, Corroded or loose module/component connector, Low battery/system voltage affecting the module, Faulty control module reporting the fault, Related fault on the body network/bus. The specific cause varies by vehicle.
How much does it cost to fix B141B?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by B141B?
Au7o has documented B141B across 1 vehicle models from 1 manufacturers: Ford.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.