B14A4 on the 2019 Subaru Forester
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| 10-93-19 | 2019-08-06. Service bulletin. This bulletin announces a design change made to the air conditioner’s pressure sensor to address customer concerns of the system blowing warm or not blowing cold air. In some cases, preliminary diagnosis may find codes B14A3, B14A4, B14EF or B14EE present. Review of actual system pressures using a manifold gauge set and comparing against values seen using the Subaru Select Monitor (SSM) may show the SSM readings much lower than the actual readings. These are all indications of a possible pressure sensor concern. |
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1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.