B11DB
0 owner reports and 12 manufacturer filings across 3 model years from Ford.
Where B11DB shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2022 Ford Bronco | Electrical System | 5 | — | Battery → |
| 2021 Ford Bronco | Electrical System | 5 | — | Battery → |
| 2023 Ford Bronco | Electrical System | 2 | — | Battery → |
A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.
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What it gets filed under
12 manufacturer filings name B11DB. Start with what the maker wrote down.
A code names the test that failed, not the part. A bulletin that names it is often a diagnosis someone has already written down — quote its number at the service desk.
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names B11DB.
- SSM 54629 Service bulletin2026-03-04 · Power Train
- Some 2021-2023 Bronco vehicles may exhibit a charging system lamp that illuminates intermittently, and/or diagnostic trouble code (DTC) B11DB:08 in the body control module (BCM). This may be due to a loose fuse terminal for the low voltage high current fuse (3A). If this condition is present, compare fuse removal effort between the low voltage high current fuse and like fuses in the battery juncti
- SSM 51989 Service bulletin2023-10-13 · Electrical System
- Some 2021-2023 Bronco vehicles may exhibit a charging system lamp that illuminates briefly and/or intermittently, and/or diagnostic trouble code (DTC) B11DB:08 in the body control module (BCM). This may be due to a loose fuse terminal for the 3 amp fuse in the battery positive fuse assembly. If this condition is present, compare fuse removal effort between the 3A fuse in the battery positive fuse
- TSB 23-2196 Service bulletin2023-06-20 · Engine And Engine Cooling
- This article supersedes TSB 23-2135 to update the Part List. Some 2021-2022 Bronco vehicles equipped with a 2.7L or 3.0L EcoBoost engine may exhibit various charging system error messages and/or illuminated charging system indicator displayed in the instrument panel cluster (IPC) with diagnostics trouble code (DTC) B11DB set within the body control module (BCM). This may be due to coolant contamin
- TSB 23-2135 Service bulletin2023-05-04 · Electrical System — Body Control Module/Bcm
- Some 2021-2022 Bronco vehicles equipped with a 2.7L or 3.0L EcoBoost engine may exhibit various charging system error messages and/or illuminated charging system indicator displayed in the instrument panel cluster (IPC) with diagnostics trouble code (DTC) B11DB set within the body control module (BCM). This may be due to coolant contamination into the battery monitor sensor (BMS) from a leaking tr
What B11DB means
Source: SAE J2012 / OBD-IIB11DB is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.
A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.
Common questions about B11DB
Source: NHTSA files and the OBD-II standardWhy does this page not define B11DB?
Because it cannot be defined honestly. The second character of a trouble code says who owns its meaning, and a 1 or a 3 hands that to the manufacturer. Sites that print one definition for a manufacturer-specific code are showing you one automaker's meaning and hoping it is yours.
Can I keep driving with B11DB stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light means a fault was logged and the car should be checked soon; a flashing light means a severe misfire — slow down and get it seen as soon as possible, because severe misfire can quickly damage the catalytic converter. The safe read of this page is the mileage and the components, not permission.
Does a code mean the car is recalled?
No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.
Why do the counts here differ from other sites?
Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.
Will clearing the code fix it?
Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.