B1DDB on the 2018 Land Rover Discovery
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.
| SSM73896 | 2019-02-19. Service bulletin. While carrying out the Pre Delivery Inspection (PDI) using Pathfinder it may be found that the passive start and lock/ unlock functionality using the key remote is not operating. The message "Smart key not found" may also appear on the Instrument Cluster. In addition the Diagnostic Trouble Codes DTCs B1DDB-55 and B1DE4-55 are stored in the Remote Function Actuator (RFA) |
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| SSM73896 | 2018-10-29. Service bulletin. Issue: While carrying out the Pre Delivery Inspection (PDI) using Pathfinder it may be found that the passive start and lock/ unlock functionality using the key remote is not operating. The message ?Smart key not found? may also appear on the Instrument Cluster. In addition the Diagnostic Trouble Codes DTCs B1DDB-55 and B1DE4-55 are stored in the Body Control Module (BCM) |
| SSM73896 | 2018-10-15. Service bulletin. Issue: While carrying out the Pre Delivery Inspection (PDI) using Pathfinder it may be found that the passive start and lock/ unlock functionality using the key remote is not operating. The message ?Smart key not found? may also appear on the Instrument Cluster. In addition the Diagnostic Trouble Codes DTCs B1DDB-55 and B1DE4-55 are stored in the Body Control Module (BCM) |
3 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.