B1441
0 owner reports and 91 manufacturer filings across 27 model years from Lexus, Toyota.
Where B1441 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2017 Lexus GS | Engine And Engine Cooling | 12 | — |
| 2017 Lexus IS | Engine And Engine Cooling | 9 | — |
| 2017 Lexus RC | Engine And Engine Cooling | 9 | — |
| 2016 Lexus GS | Engine And Engine Cooling | 8 | — |
| 2016 Lexus IS | Engine And Engine Cooling | 6 | — |
| 2016 Lexus RC | Engine And Engine Cooling | 6 | — |
| 2019 Lexus GS | Suspension | 3 | — |
| 2018 Lexus GS | Suspension | 3 | — |
| 2019 Lexus RC | Suspension | 3 | — |
| 2018 Lexus RC | Suspension | 3 | — |
| 2017 Lexus RC F | Suspension | 3 | — |
| 2019 Lexus IS | Suspension | 2 | — |
| 2018 Lexus IS | Suspension | 2 | — |
| 2020 Lexus LC | Visibility | 2 | — |
| 2019 Lexus LC | Visibility | 2 | — |
| 2018 Lexus LC | Visibility | 2 | — |
| 2019 Lexus LS | Equipment | 2 | — |
| 2018 Lexus LS | Engine And Engine Cooling | 2 | — |
| 2017 Lexus LX | Suspension | 2 | — |
| 2016 Lexus RC F | Air Bags | 2 | — |
| 2017 Toyota Land Cruiser | Equipment | 2 | — |
| 2019 Lexus LX | Suspension | 1 | — |
| 2018 Lexus LX | Suspension | 1 | — |
| 2016 Lexus LX | Air Bags | 1 | — |
| 2019 Toyota Land Cruiser | Equipment | 1 | — |
| 2018 Toyota Land Cruiser | Equipment | 1 | — |
| 2016 Toyota Land Cruiser | Air Bags | 1 | — |
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.
What it gets filed under
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names B1441. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.
- L-SB-0010-222022-04-08 · Equipment — Appliance — Air Conditioner
- TSB: Some 2018 ? 2019 model year LS 500 and LS 500h vehicles may exhibit one or more of the following HVAC conditions: ?Uneven temperature or air flow between the vents. ?Little or no air flow from the vent(s). ?Improper MODE control function. Additionally, some vehicles may store one or more of the following HVAC servo Diagnostic Trouble Codes (DTCs): ?B144A ? Air Outlet DEF Damper Co
- L-SB-0009-222022-04-04 · Visibility — Defroster/Defogger/Hvac System
- TSB: Some 2018 ? 2020 model year LC 500 and LC 500h vehicles may exhibit one of the following HVAC conditions: ?Uneven temperature or air flow between the vents. ?Little or no air flow from the vent(s). ?Improper MODE control function. Additionally, some vehicles may store one or more of the following HVAC servo Diagnostic Trouble Codes (DTCs): ?B144A ? Air Outlet DEF Damper Control S
- L-SB-0001-21 Rev2021-02-11 · Engine And Engine Cooling
- TSB: Some 2013 ? 2017 model year Lexus vehicles may exhibit one of the following HVAC conditions. ?Uneven temperature or air flow between the vents. ?Little or no air flow from the vent(s). ?Improper MODE control function. Additionally, some vehicles may store one or more of the following HVAC servo Diagnostic Trouble Codes (DTCs). ?B1441 ? Air Mix Damper Control Servo Motor Circuit (F
- L-SB-0001-212021-01-11 · Engine And Engine Cooling
- TSB: Some 2013 ? 2017 model year Lexus vehicles may exhibit one of the following HVAC conditions. ?Uneven temperature or air flow between the vents ?Little or no air flow from the vent(s) ?Improper MODE control function Additionally, some vehicles may store one or more of the following HVAC servo Diagnostic Trouble Codes (DTCs). ?B1441 ? Air Mix Damper Control Servo Motor Circuit (Fron
- T-SB-0002-212021-01-11 · Air Bags
- TSB: Some 2016 ? 2017 model year Land Cruiser vehicles may exhibit one of the following HVAC conditions: ?Uneven temperature or air flow between the vents. ?Little or no air flow from the vent(s). ?Improper MODE control function. Additionally, some vehicles may store one or more of the following HVAC servo Diagnostic Trouble Codes (DTCs): ?B1441 ? Air Mix Damper Control Servo Motor Ci
- L-SB-0002-212021-01-11 · Engine And Engine Cooling
- Some 2016 ? 2017 model year LX 570 vehicles may exhibit one or more of the following HVAC conditions: ?Uneven temperature or air flow between the vents. ?Little or no air flow from the vent(s). ?Improper MODE control function. Additionally, some vehicles may store one or more of the following HVAC servo Diagnostic Trouble Codes (DTCs): ?B1441 ? Air Mix Damper Control Servo Motor Circui
What B1441 means
Source: SAE J2012 / OBD-IIB1441 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 B1441
Source: NHTSA files and the OBD-II standardWhy does this page not define B1441?
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 B1441 stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light generally means the fault was logged and the vehicle is in a reduced-risk mode; a flashing light means stop soon, because a misfiring engine can destroy a catalytic converter in minutes. 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.