OBD Guide

P1001

Key On/Engine Running Not Able To Complete

P1001 is an OBD-II diagnostic trouble code meaning: Key On/Engine Running Not Able To Complete. Common causes: problems with power supply or grounding of the ecu, wiring harness fault. Estimated repair cost: ~$278.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
~$278 (est.)

Symptoms

  • Check Engine Light Is On
  • Problems starting the engine
  • Reduced engine power
  • Unstable engine idling
  • Errors in other vehicle systems

Causes

  • Problems with power supply or grounding of the ECU
  • Wiring harness fault
  • Damaged or corroded connectors
  • ECU software failure
  • ECU reprogramming failed

How to Fix

  1. Check the condition of the battery and the voltage in the on-board network
  2. Inspect the ECU connectors and wiring harnesses for damage.
  3. Check the integrity of the power supply and grounding circuits of the computer
  4. Try to reset the error and re-diagnostics
  5. If necessary, reflash or replace the ECU

Related codes

Error P1001 by Vehicle Brand

FAQ

What does the P1001 code mean?

P1001 is an OBD-II diagnostic trouble code that indicates: Key On/Engine Running Not Able To Complete

What causes a P1001 error code?

The most common causes of P1001 include: Problems with power supply or grounding of the ECU; Wiring harness fault; Damaged or corroded connectors; ECU software failure.

How do I fix a P1001 diagnostic trouble code?

To fix P1001: Check the condition of the battery and the voltage in the on-board network. Inspect the ECU connectors and wiring harnesses for damage.. Check the integrity of the power supply and grounding circuits of the computer. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1001?

Yes, but get it checked soon

How much does it cost to fix P1001?

The estimated repair cost for P1001 is ~$278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat