Troubleshooting
Ford P1000 Won’t Clear
If P1000 remains, stop asking only “how many miles.” Ask which monitor is incomplete, whether another DTC is present, and whether enable conditions are being met.
Work these questions in order
- How long has it remained since the last battery disconnect, code clear, or reprogramming?
- Which monitors are incomplete? Which are not supported?
- Are there pending, stored, or permanent DTCs besides P1000?
- Was the battery recently disconnected again?
- Was the PCM recently reset or reprogrammed?
- Is EVAP the only monitor remaining?
- Are enable conditions being met (temperature, fuel level, drive mix)?
- Is a component fault blocking the monitor?
- Is calibration-specific service information relevant?
Branch
Other DTCs present → diagnose those first. Only P1000 + one incomplete monitor → study that monitor’s enable criteria. Repeated resets → stop resetting. Inspection deadline → read emissions testing for your jurisdiction.
When EVAP is the only remaining incomplete monitor
Common, still not a diagnosis by itself
Clearing restarts readiness. The return is expected until monitors complete or until you stop erasing.
This site provides general diagnostic information. Vehicle procedures vary by model, year, engine, and calibration. Follow Ford service information and local regulations, and use a qualified technician when diagnosis or repair exceeds your experience.