What causes P1001 on a Ford?

Self-test aborted by low battery voltage Engine stalled during the running test Aftermarket chip or tuner interrupting the test sequence Fault that halts the test before completion

How do I fix P1001 on a Ford?

Charge the battery fully and re-run the KOER test Remove aftermarket tuners before testing Keep the engine running steadily through the whole test Fix any fault that appears before the abort point

P1001 Key On Engine Running Test Not Able to Complete

Q: What does P1001 mean on a Ford?

P1001 — Key On Engine Running Test Not Able to Complete. Applies to All OBD-II Ford, Lincoln and Mercury vehicles.

Category: Powertrain - Computer and Auxiliary Controls
Severity: Check Engine Light
Applies to: All OBD-II Ford, Lincoln and Mercury vehicles

What does P1001 mean on a Ford?

P1001 — Key On Engine Running Test Not Able to Complete. This Ford-enhanced code applies to All OBD-II Ford, Lincoln and Mercury vehicles.

Common causes of P1001

Self-test aborted by low battery voltage
Engine stalled during the running test
Aftermarket chip or tuner interrupting the test sequence
Fault that halts the test before completion

How to fix P1001

Charge the battery fully and re-run the KOER test
Remove aftermarket tuners before testing
Keep the engine running steadily through the whole test
Fix any fault that appears before the abort point