DTC P1000: System Checks Not Complete Since Last Memory Clear & DTC P1111: System Checks Complete Since Last Memory Clear
WARNING: This page does not describe the selected car, but rather 19 other vehicles, including the 2003 Jaguar XKR, 2003 Jaguar XK8, 2003 Jaguar XJR, 2003 Jaguar XJ8, and 2002 Jaguar XKR. However, it is still accessible from the selected car via links, so may be relevant.
When the DTC(s) relating to a rectified concern are cleared, P1000 (system checks not complete since last memory clear) will be flagged. This DTC does not indicate a failure, just that diagnostic drive cycles need to be performed. See DRIVE CYCLES . The vehicle's on-board diagnostic system will confirm that all the diagnostic drive cycles are complete by flagging P1111 (system checks complete since last memory clear).