P06DD: Engine Oil Pressure Control – Easy Fix!

There is no doubt that P06DD is one of the most common OBD2 trouble codes. This is why it is great to have a OBD2 scanner since it helps to maintain and repair cars.

Any time you’ve seen this code P06DD it’s telling you that your vehicle’s engine oil pressure is too low or high and it is affecting the dual stage oil pump. At this point, the PCM will attempt to minimize engine wear by simply turning off the oil pump drive and setting a code.

What Does P06DD Code Stand For?

As we’ve mentioned above, the P06DD code is an indication that your vehicle oil is either too low or high. This is a result of several reasons.

The oil is usually pump in your car then it pumps the oil in the oil circuit and maintains the oil pressure which is done through an adjustable opening in the oil path. This adjustable opening that we are talking about is controlled by a solenoid valve.

Solenoid valve is said to adjust in two regulated pressure stages. It has a high pressure mode regulation that performs at high speeds and low pressure mode regulation that works at low speeds. It’s best to keep in mind that the solenoid valve should be able to maintain a specific oil pressure depending on the engine speed.

With that said, the PCM will then collect the pressure readings by simply using the pressure sensors throughout the engine which plays a role in adjusting the solenoid valve base on the engine load, oil temperatures and operating conditions.

So, if it’s a case where the oil pressure is too low or too high than what it should be, the PCM will then show the code P06DD error.

Read Also: Engine Oil Flow Diagram

What Are The Symptoms of the P06DD Code?

  • Check engine light
  • Lack of power
  • No oil pressure
  • Noisy engine
  • Excessive engine vibrations
  • Low vehicle performance
  • Poor idle quality

What Causes the P06DD Code to Show on Your Diagnostic Scan Tool?

P06DD: Engine Oil Pressure Control

It’s best to keep in mind that there are several reasons for P06DD code to appear on your OBD2 scanner or whichever tool you are using to perform the diagnostic test. Here are a lost of reasons:

  • Failure of the oil pump
  • Defective oil pressure sensor
  • Dirty engine oil
  • Low oil level
  • Damage wiring
  • Leakage of oil
  • Oil filter need replacement

How to Fix the P06DD Code?

Below we have listed how you can actually fix the P06DD code:

  • The first thing we recommend doing is to add more engine oil after you’ve check the oil levels. The thing is that a high engine oil level plays a role in increasing the oil flowing in the oil path.
  • Make sure that you change the engine oil if it’s a case where the oil is dirty or old. Let’s not forget that dirty oil may result in poor engine health and eventually result in clogged oil intake ports filter. When the port is blocked it resist the oil from entering the pump while hindering pressure buildup in the circuit.
  • We highly recommend that you take the time out to replace the engine oil filter. The reason for this is because it helps to clean the oil, which plays a role with the health of your engine.
  • You can go ahead and look for any form of leaks and take action in stopping it. Oil leaks tend to reduce engine oil pressure. This is why you should fix it to maintain oil pressure within the engine.
  • Now it is time to check the wiring and positioning of the engine oil pressure sensor. As soon as you fix the oil pressure sensor you will start to get accurate oil pressure reading to the PCM.
  • Last but not least, we think you should replace the engine oil pump for efficient working of the solenoid.

How Do You Prevent P06DD?

Here are ways in which you can actually prevent the P06DD code:

  • It’s best to change oil after regular intervals as recommended by your manufacturer. Doing this will ensure that you get good engine health, excellent lubrication, clean oil filter, and a clean sump strainer in the oil pan.
  • Make sure to keep an eye out for any form of engine oil leaks. It will actually save your engine from experiencing insufficient oil pressure levels.
  • Once you have a superb engine oil pump, it will prevent the solenoid stuck position and ensure that the solenoid valve operates as it should.


When you’ve seen the P06DD code you’ll now understand that the computer has detected an issue with the oil pressure system or even the switch. Not only that, but this code may also accompanied by other codes. The most effective way to fix the issue is to replace the oil pressure switch or sensor. If the problem is still not fixed, then you can go ahead and replace the oil pump drive assembly.