P1121 on the 1999 Jaguar XK8
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.
| 31005 | 2001-01-31. Service bulletin. SOME VEHICLES MAY DEFAULT TO LIMP HOME MODE BECAUSE THE THROTTLE CABLE IS IMPROPERLY ADJUSTED. THE CONDITION WILL BE ACCOMPANIED BY DIAGNOSTIC TROUBLE CODE (DTC) P1121 AND / PR P1632 BEING STORED IN THE MEMORY OF THE ENGINE CONTROL MODULE (ECM) OR TRANSMISSION CONTROL MODULE (TCM), RESPECTIVELY. *TT |
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| 31005 | 2000-04-20. Service bulletin. SOME VEHCIN BUILT WITHIN VIN 031303-ON - 853936-ON MAY DEFAULT TO LIMP HOME MODE BECAUSE THE THROTTLE CABLE IS IMPROPERLY ADJUSTED. THE CONDITION WILL BE ACCOMPANIED BY DIAGNOSTIC TROUBLE CODE (DTC) P1121 AND / OR P1632 BEING STORED IN THE MEMORY OF THE ENGINE CONTROL MODULE (ECM). *TT |
2 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.