What Does the Engine Code P1000 Mean?

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If your car is showing the P1000 engine code, the on-board diagnostic system readiness test is not complete. While the P1000 engine code usually clears on its own after a full system readiness check is completed, it is important to have your vehicle diagnosed to rule out any additional issues. 
Diagnostic trouble codes (DTCs) help you identify problems with your car’s engine. You should never ignore the check engine light when it turns on. Instead, an OBD-II code reader can be used to pinpoint what’s causing the problem and help find the solution. 
Car insurance comparison and broker app Jerry is here to help you better understand DTCs while also getting you the best deal on car insurance. In this article, we’ll give you a breakdown of the P1000 engine code: what it means, how to fix it, and how much you can expect to pay for repairs. 
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What does the engine code P1000 mean?

Definition: On-board diagnostic system readiness test is not complete
The P1000 engine code is a manufacturer-specific trouble code most commonly found in makes like Ford, Jaguar, and Mazda. On-board diagnostic (OBD) monitors are performed during the OBD drive cycle. If the diagnostic test is not completed, it is likely that your check engine light will come on.

How much will it cost to fix?

The cost of a mechanic diagnosing the code is one hour of labor. Mechanic labor costs vary by region, but you can anticipate a charge of $75 to $150 an hour

What can cause the P1000 engine code?

A car’s engine computer carries out multiple self-tests called readiness monitors. Disruption of this testing triggers the P1000 engine code. Common reasons for readiness monitors being disrupted are:   
  • The vehicle is new from the factory
  • Recent disconnection of the car’s battery 
  • Recent disconnection of the powertrain control module (PCM)
  • An OBD monitor failure occurred before completion of an OBD drive cycle
  • PCM diagnostic trouble codes were recently cleared with a scan tool 

Common symptoms of the P1000 engine code

The number one indicator that your vehicle’s diagnostic testing has not been completed is the illumination of the check engine light. 
Unlike the majority of DTCs, the P1000 engine code does not exclusively translate to an engine problem or decreased driving performance. It’s still a good idea to get a full diagnosis with an OBD-II code reader—the P1000 code could be accompanied by other DTCs or be triggered by poor battery connection or an error within the powertrain control module

How serious is the P1000 engine code?

While the P1000 will not affect the driveability of your car, you shouldn’t disregard it completely. If your check engine light keeps turning on because of the P1000 code, there could be a problem with your engine’s computer. 
A P1000 engine code on your vehicle will also result in a failed emissions test, so it’s important to fix the problem if your state requires regular smog checks.

Can I fix the P1000 engine code myself? 

In most cases, yes. Once your vehicle’s engine has completed all of its readiness monitors in a single OBD drive cycle, the P1000 code should clear on its own and the check engine light should turn off

What is an OBD drive cycle?

An OBD drive cycle is your car’s way of self-diagnosing any issues. The length of a drive cycle can vary depending on a vehicle’s manufacturer, make, model, and year but most drive cycles can be completed within 20 minutes of driving. Check your owner’s manual for the specifics of your car’s drive cycle.  

How do I know when my car has completed an OBD drive cycle?

The nice thing about a drive cycle is that it can be completed just by driving normally. But if you want to run a drive cycle test on your vehicle, you can do so by following a few basic steps:
  • Let your car sit overnight so that you can begin the drive cycle with a cold start. You cannot run a drive cycle if you need to jumpstart your battery.
  • Start the engine and allow your car to idle for about two and a half minutes.
  • Turn on your headlights, heater, and defroster for two to three minutes.
  • Start driving—beginning at a speed of 25 mph, gradually increasing to 35 mph, then 45 mph.
  • Get on the highway and bring the car up to 55 mph, then 60 mph. Maintain this speed for at least five miles.
  • Head home. When you park your car, let it idle for another one to two minutes.

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