C1803 on the 2005 Jaguar XJ
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.
| 20607 | 2006-01-18. Service bulletin. ELECTRIC PARKING BRAKE (EPB) ACTUATOR - DTCS C1784, C1785, C1786, C1799, C1801, C1802, C1803 - DIAGNOSTICS. *TT |
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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.