P3411 code definition
The P3411 code represents that there is an issue with your vehicle’s MAF, MAP or TP sensors.
What the P3411 code means
Your vehicle has a control module in charge of ensuring it works properly without needing your attention. One way it does this is by storing a range of calculated values that are sufficient for cylinder deactivation mode.
This feature of your vehicle is meant to provide you with maximum fuel efficiency under light load driving conditions. If necessary, the ECM (Engine Control Module) will activate the cylinder deactivation system to deactivate cylinders one and seven on the left bank and four and six on the right bank, effectively transitioning the V8 into V4 mode.
Cylinder deactivation happens because special valve filters keep intake and exhaust valves from opening on specific cylinders. The entire process takes place in a matter of milliseconds, making it completely unnoticeable to the driver and passengers.
The control module receives inputs from the MAP sensor, TP sensor and MAF sensor to help make the decision when to enter this mode. If these inputs report that the calculated values are not within the acceptable range for cylinder deactivation mode, code P3411 will be stored.
What causes the P3411 code?
There are six main reasons your vehicle may store a P3411 code. These are:
- Low oil pressure
- Oil passage has been restricted
- A mechanical issue with the engine
- Cylinder deactivation solenoid is faulty and has been deactivated
- Cylinder deactivation solenoid harness is shorted or open
- Cylinder deactivation solenoid circuit is suffering from a poor electrical connection
What are the symptoms of the P3411 code?
There are really only two symptoms that could come about from the cylinder deactivation mode not working correctly. The first one is that your Check Engine Light will come on.
The second is that you may notice a lack of fuel economy. Unfortunately, depending on how often cylinder deactivation mode is usually activated for you, this may not even be all that noticeable. You could be missing out on ideal fuel economy but it really isn’t that much worse than what you’re used to.
How does a mechanic diagnose the P3411 code?
Your mechanic will use a scanner to ascertain any codes your vehicle’s PCM has stored and get the details about P3411, specifically. They’ll then check your car’s cylinders and its MAF, MAP or TP sensors. They’ll also check to see how easily oil is able to pass.
Common mistakes when diagnosing the P3411 code
As we mentioned above, one of the biggest challenges with this code is that it’s tough to even know a problem exists. Unless the mechanic you bring your vehicle scans for the code, all they may have to go on is a Check Engine Light and poor fuel economy. That can lead to a number of misdiagnoses.
How serious is the P3411 code?
The P3411 is nothing to worry about. Your vehicle isn’t at risk and you’re in no danger when you drive it. However, you probably paid good money for a vehicle that can switch between V8 and V4 mode, so it’s worth seeing a qualified mechanic right away so you get the full benefit of your investment.
What repairs can fix the P3411 code?
Fortunately, it shouldn’t take much to address the problems associated with P3411. Your mechanic will do one of the following:
- Fix any malfunctioning sensors.
- Reset the system
- Repair or replace any electrical components that have been compromised (e.g. wires, connectors, etc.)
Additional comments for consideration regarding the P3411 code
The P3411 is a good reminder of why you need to take your Check Engine Light seriously even if it appears nothing is wrong with your vehicle. In the case of this trouble code, you could be wasting a lot of money at the pump despite paying for a technology that is meant to help you save.
Need help with a P3411 code?
YourMechanic can dispatch certified mobile mechanics who will visit you at your home or office to diagnose your vehicle’s trouble codes and handle necessary repairs. You can call 1-800-701-6230 to talk to a service advisor or complete an online form. We’ll get you a free quote and set you up with a qualified mechanic ASAP.