What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
3Original wording in English
LEXUS
Reported code forms B1446
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…
LEXUS
Reported code forms B1446
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…
LEXUS
Reported code forms B1446
TSB: Some 2017 ? 2019 model year Lexus vehicles may exhibit one or more of the following conditions: ?Uneven temperature or air flow between the vents ?Little or no air flow from the vent(s) ?Improper MODE control…
Check vehicle applicability
2A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.