The engine oil pressure control circuit works like a sensor that monitors the oil pressure in the engine chamber. It ensures the engine is properly lubricated and runs smoothly. After checking with the OBD ll scanning tool, if you get the P06DD code that says the engine oil pressure control circuit is stuck off.
When the engine oil flow is not regulated properly, you will get the code. However, not to worry, Here I will help to fix the error in your car. So, let’s know the details.
What Does the Engine Oil Pressure Control Circuit Stuck off Mean (P06DD Code)?
P06DD is an error code of the OBD ll tool, meaning the engine oil pressure control circuit is stuck off. The code shows when the PCM (Power Control Module) receives signals from the engine oil pressure sensor. If the oil pressure is too low, the sensor can detect it.
The engine oil pump has two regulated pressure stages: the low-pressure mode regulation is approximately 200 kPa and the high-pressure regulation is 450 kPa. The PCM switches on these stages depending on the engine operating conditions.
The minimum pressure is 41 kpa whether the operating condition is. If the oil pressure goes down this pressure can damage the critical moving part. It affects the dual-stage oil pump and can increase engine friction and wear, the PCM turns off the oil pump drive and sets the code.
How Do I Know My Car Gets The P06DD Code?
There are a few symptoms of the P06DD code. If you experience one of them, you should diagnose the code.
- Oil Light Flashing: When the car’s oil is lower than required, the oil pressure light turns on. But if you changed the oil recently and you still get the light, the sensor may be faulty.
- Poor power: If the oil pressure isn’t maintained properly, the engine won’t produce sufficient power. You will experience poor performance while driving.
- Unstable Idle Quality: Due to the error, you can experience poor or rough idle. You won’t feel smooth while driving and the RPMs will jump up and down.
- Noise from the engine: Due to low oil pressure, the engine parts aren’t lubricated properly. So you can hear loud noises, excessive vibration, and malfunction.
How Do I Check the P06DD Code?
Before treating the P06DD code, make sure you diagnose the code properly. So here are the steps you need to follow:
Step 1: Plug the OBD2 scanner tool into your vehicle. I have used BOSCH OBD 1100 Scan Tool which gives exact result. The tool connects the engine control unit (ECU) to the system and you can diagnose problems. There is an OBD port to the left side of the gas padel, accelerator, or below the steering wheel. You better check the manual to find it.
Step 2: Now, turn on the engine so that the scanner can receive data from the engine system.
Step 3: Meanwhile, all the error codes must show on the scanner’s display. Or you can connect it with your phone to find the error codes.
Why did I Get P06DD Code?
There are multiple reasons for getting the P06DD code. For example,
- Low Oil Pressure: As I told you earlier, low oil pressure is the major reason for this code. So you should check the oil level immediately before critical damage.
- Faulty Engine Oil Pressure Sensor: If the oil pressure sensor has some defects it can cause the error code. The sensor circuit is equally susceptible to the problem. If the circuit doesn’t pass the current, you will get the code.
- Defective wiring: The wiring system of the oil pressure control circuit can be damaged, corroded, burnt, or shorted which can cause malfunction and stuck with an error code.
- Using wrong oil Viscosity: If you don’t follow the recommendation of your vehicle’s model and use the wrong viscosity of engine oil may lead to damage to the whole lubrication system. Wrong engine oil is bad for the engine as well as the oil pressure control circuit.
- Mechanical faults: Mechanical faults in the engine’s oiling system can lead to insufficient oil pressure. The fault can be in the engine oil pressure control solenoid valve, tensioners, oil pump, etc.
- Bad Oil Filter: A faulty or wrong oil filter can cause the engine oil pressure control stuck off. When an unprofessional technician handles these types of works doesn’t fix them correctly.
How do I Fix the P06DD Code?
After diagnosing the P06DD code, you should do the following steps:
- Maintain Proper Oil Level
Check the dipstick of the engine oil and find out whether it has the right level of engine oil. Also, check the color and impurities. If the oil level is low, then add oil or you can go for the oil change.
- Change the Engine Oil Filter
If the oil filter is clogged or damaged, then changing the oil filter can fix the oil pressure. Also, you should install the filter in the right position. So, go to an experienced technician, and install it.
- Repairing any observed wiring issues
Check the wiring system of the oil pressure circuit and find for damaged, shorted, or burnt wiring. You need to change the damaged wires and connect them well. You can use a multimeter to check the wiring.
- Replacing the Oil Pressure Switch if it is defective/worn out
If the problem is with the oil pressure switch, then repair or replace it to fix the P06DD code.
- Clear the P06DD code.
Clear the P06DD code from the scanning tool re-scan the oil pressure circuit and make sure the code doesn’t return. Also, check other necessary reference voltage, grounding, and valve cover gaskets.
Can I Drive My Truck With a Bad Oil Pressure Switch?
Driving with low oil pressure can cause major damage to the engine. Even, the damage can be worse and the engine could be sluggish. It’s totally not recommended to drive a car, truck, or any other vehicle with the alarm of low oil pressure.
However, if the engine has the right oil pressure, but you see the P06DD code due to a bad oil pressure switch, it is not that harmful to the engine. With a bad switch, you won’t get any oil pressure condition which can be a big issue in the long run.
Oil pressure switches are relatively inexpensive and easy to replace. So you should diagnose the switch and replace the bad switch as soon as possible.
Frequently Asked Questions (FAQs)
What happens when the oil pressure switch fails?
If the oil pressure switch fails, you will get:
- Oil pressure warning light
- Check engine light
- Hotter engine
- Bad oil pressure gauge reading.
How much does it cost to replace an oil pressure switch?
The cost to replace an oil pressure switch can vary depending on a few factors, such as the aftermarket and OEM parts of your vehicle.
On average, the cost can range from $50 to $150. The part itself is relatively inexpensive, usually costing around $20 to $50, but the labor cost can vary depending on how difficult it is to access the switch.
How long can an engine run with no oil pressure?
The engine can run without no oil pressure but it affects so badly on the moving parts. It may be working for less than 30 minutes before failing. So you should not drive with no oil pressure
Perfect engine oil pressure is mandatory for the great performance of your car. However, getting the P06DD code indicates serious or minor errors in the vehicle. According to my guide, you can easily diagnose, find out the causes, and fix the issue of the engine oil pressure control circuit stuck off.