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B123A on the 2021 Jaguar E-PACE

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.

Bulletins for this model year that name B123A
SSM752242021-02-05. Service bulletin. Front Direction Indicator open load DTC’s may sometimes being incorrectly set within the Headlamp Control Module (HCM): B123A-13 (front left) and/or, B123B-13 (front right).

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.