B141B on Ford: How to Diagnose & Fix
Manufacturer-Specific Body Control Code
1 Ford model · 1 documented issue · 1 critical
B141B on Ford by model: symptoms, diagnosis and fix
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.
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Sources for this issue (1)
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 on a Ford?
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. On Ford it is documented across 1 model: Bronco.
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 on a Ford?
Repair costs vary widely with the root cause and Ford model; each issue on this page carries its own estimate where one is published.
Looking for B141B on a different make?
View B141B across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.