B2321 on the 2012 Toyota Prius C
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.
| T-SB-0018-13 | 2018-04-23. Service bulletin. Some 2012 model year Prius C vehicles may exhibit one or more of the following conditions: ABS and TRC MIL ?ON? with DTC B2321. Keyless Entry and Smart Key features are inoperative. Vehicle interior door lock/unlock switches are inoperative. Multi-Display may show the incorrect door is opened. Shift Position Linked Door Locking Function may not operate, not locking the doors when the shift position is moved out of ?P? position. If any of these conditions are exhibited and the vehicle is able to ?Ready? On (key may need to be held over the ignition button), the Main Body ECU may require replacement. |
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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.