Engine-Codes - Generic - P1001

P1001 Code - Key On/Engine Running Not Able To Complete

- Code Popularity: 28,515 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the P1001 Code?

  • Incorrect Self-Test Procedure
  • Unexpected response from the self-test monitors
  • RPM out of specification

|How to Fix the P1001 Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|What is the cost to diagnose the P1001 code?

Labor: 1.0

The cost to diagnose the P1001 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P1001 code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the P1001 Code Mean?

The Key On/Engine Running (KOER) on-demand self-test is a functional test of the Powertrain Control Module (PCM) carried out on-demand with the ignition ON, the engine running, and the vehicle stopped. A check of certain inputs and outputs is made during operating conditions and at a normal operating temperature. The brake pedal position, transmission control, and the power steering tests are part of the KOER on-demand self-test and must be carried out during this operation if applicable.
The Powertrain Control Module sets the non-MIL (Malfunction Indicator Lamp) Diagnostic Trouble Code (DTC) when the Key On/Engine Running (KOER) self-test does not complete in the time intended.

Key On/Engine Running Not Able To Complete

|Need more information with the P1001 code?

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|P1001 code information for specific makes

  • P1001 BUICK Evaporative Emission System Signals Message Counter Incorrect
  • P1001 CADILLAC Evaporative Emission System Signals Message Counter Incorrect
  • P1001 CHEVROLET Evaporative Emission System Signals Message Counter Incorrect
  • P1001 CHRYSLER Ignition Key Off Timer Performance Too Fast
  • P1001 DODGE Ignition Key Off Timer Performance Too Fast
  • P1001 FORD Key On/Engine Running Not Able To Complete
  • P1001 GMC Evaporative Emission System Signals Message Counter Incorrect
  • P1001 JEEP Ignition Key Off Timer Performance Too Fast
  • P1001 LINCOLN Key On/Engine Running Not Able To Complete
  • P1001 MAZDA Key On/Engine Running Not Able To Complete
  • P1001 MERCURY Key On/Engine Running Not Able To Complete
  • P1001 SAAB Evaporative Emission Canister Purge Valve Low Output

|Need help with a P1001 code?

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