1 Answer. This code just means that the PCM didn't complete a full diagnose cycle, and is set when the battery have been disconnected, codes have been cleared or sometimes even when the vehicle have been towed. No scanner it's necessary to clear the code, driving the vehicle for a few minutes (sometimes more) to complete the diagnose cycle will Need to clear fault codes on jaguar x-type 2.5. I would greatly appreciate assistance with clearing the trouble codes from stored info. in ecm. I need to return car to customer asap. It only shows "check engine" about once every three weeks and briefly goes into limp-mode for a few minutesthen it's ok. I don't have a code-scan tool anymore Best answer. P1000 System readiness. This is not a fault code a a readiness code,. To get the system readiness you need more than 1/4 fuel in the tank You will also need to check for pending codes ,P1000 identifies incomplete, and they are the catalyst, the EVAP, the 02 sensor, 0 votes. answered May 20, 2021 by OBDIITech (8.2k points) This can be a mechanical or an electrical circuit fault, depending upon vehicle manufacturer, fuel type and fuel system. Troubleshooting steps may vary depending upon manufacturer, type of fuel rail pressure system, and type of fuel rail pressure sensor and wire colors. Symptoms. Symptoms of a P0191 engine code may include: Vocational, Technical or Tra 678 satisfied customers. Jaguar x -type: - I have a jaguar x-type 2004 3.0 auto and. - I have a jaguar x-type 2004 3.0 auto and it has shown up the following codes p1646 / p1642 / p1000 and displays on the dashboard a yellow light … read more. The fault code P1000 indicates noncompletion of system tests. * Misfire detection * Evaporative emission control system * Exhaust-gas recirculation * Lambda sensor * Exhaust gas catalytic converter The fault code P1000 cannot be erased. It is cancelled automatically once the vehicle has completed certain driving cycles. 2000 xk8 running restricted performance scaned codes P0303 cil inder 3 missfire,P1316 enhanced DTC,P0353 ing coil C,P1000 enhanced DTC, understand ing coil but not the P1000,P1316 codes got any suggestions. The P1603 means that your TCM has probably failed. It may have a loose solder connection or the PROM chip may have come out of it's slot. EIther way the TM needs tobe removed from the car and repaired/replaced by a qualified repair person. The C1145 is for the ABS and it may be related to the TCM failure. 3ezcT.