Code clear

P1000 After Clearing Codes

An erase command does not permanently remove incomplete-readiness status. It usually restarts the monitors.

Scan tool near a steering wheel used while reviewing whether codes should be cleared — Clearing codes usually restarts readiness. That can make P1000 appear or return.

Repeated clearing delays readiness

Do not erase to prepare for inspection

Each clear can put non-continuous monitors back to incomplete. If you needed the codes for diagnosis, capture them first (screenshots, freeze-frame) before any erase.

What to do instead

1
Save the original code list and freeze-frame.
2
Repair any documented faults if they exist.
3
Allow monitors to run; recheck status rather than clearing again.
4
If only P1000 remains after a single reset, follow the how-to-fix path.

Automotive battery in an engine bay with a service cable disconnected

Related guide

After battery disconnect

The other reset that looks identical on a scan.

Vehicle in an emissions inspection lane while a technician reviews diagnostic data

Related guide

Smog check

Why erasing before a test can backfire.

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.