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C103B on the 2020 Bentley Flying Spur

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 C103B
2062259.62023-11-08. Service bulletin. Air suspension warning light within the DIP - DTC's P089200 - C104707 - C103B13 - Evident within Address 74 Customer Statement: -Air suspension warning light within the DIP
2062259.52022-12-07. Service bulletin. Air suspension warning light within DIP - DTCs P090200 - C103B13 - Evident within Address 74 Customer Statement: -Air suspension warning light within the DIP
2062259/42022-04-08. Service bulletin. Air suspension warning light within the DIP - DTC's P089200 - C104707 - C103B13 - Evident within Address 74. Customer statement / workshop findings: Air suspension warning light within the DIP Workshop findings: One or a combination of the DTCs shown below are evident within address 74 - P089200 - Symptom Code 3145792 - TCM Power Relay Sense Circuit Intermittent (Level Control Valves Open Circuit) - C103B13 - 3145909 - Solenoid for level control system Open circuit - C104707 - 3211279 - Level control valves mechanical malfunction Technical background: Refer to the Measure section of this TPI.
2062259/22021-08-07. Service bulletin. Air suspension warning light within the DIP - DTCs P089200 - C104707 - C103B13 - Evident within Address 74. Customer statement / workshop findings: Air suspension warning light within the DIP Workshop findings: One or a combination of the DTCs shown below are evident within address 74 - P089200 - Symptom Code 3145792 - TCM Power Relay Sense Circuit Intermittent (Level Control Valves Open Circuit) - C103B13 - 3145909 - Solenoid for level control system Open circuit - C104707 - 3211279 - Level control valves mechanical malfunction Technical background: Refer to the Measure section of this TPI.

4 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.