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P3483 OBD-II Trouble Code: Cylinder 11 Deactivation/Intake Valve Control Circuit Low

Check Engine Light

P3483 code definition

This code is defined as a deactivation/intake control valve control circuit is low on the 11th cylinder.

What the P3483 code means

The P3483 code means that the intake control solenoid for the #11 cylinder is open, shorted or is pushing back with a lot of resistance. This code is logged by the vehicle’s ECM (engine control module) which is in charge of monitoring, amongst other things, the MAP sensor, MAF sensor and TP sensor. A code P3483 is a sign that the ECM is getting a reading from one of these that isn’t in line with the acceptable range for cylinder deactivation mode.

What causes the P3483 code?

There are two main causes that could trigger a P3483 code:

  • One or more of the four solenoids is short, has an open circuit or is pushing back with high resistance. The vehicle’s ECM controls these solenoids, which is how it’s able to manage the vehicle’s overall performance.

  • Cylinder #11 has one of these problems and the engine has been given the command to switch to a different cylinder mode of operation.

It’s also worth mentioning that there’s always the chance that the ECM could simply be reporting this code in error, but this is very rare.

What are the symptoms of the P3483 code?

If the P3483 code is logged, the Check Engine Light should come on at the same time. The engine should go back to its normal cylinder operation and refuse commands to change until repairs have been made and the code cleared. Due to the solenoid failure and the injector being turned off, the engine will most likely misfire. If it does start up, the vehicle will probably lack in performance and power.

How does a mechanic diagnose the P3483 code?

A qualified technician will carry out a diagnosis by doing the following:

  • Use an ODB-II scanner to download all the codes stored in the vehicle’s ECM and then review them on freeze frame.

  • They will then inspect the solenoid wiring connections to look for any problems that involve corroded or loose connections.

  • Next, the mechanic should check the #11 deactivation solenoid for the desired amount of resistance.

  • Finally, they will go through the manufacturer pinpoint tests for further diagnosing and replacing of the solenoid if necessary.

Common mistakes when diagnosing the P3483 code

One mistake a mechanic must be careful to avoid is not using the OBD-II scanner to get all the freeze frame data they need for a comprehensive diagnosis. If the mechanic simply hears what the owner has to say about their vehicle and immediately begins looking for the problem, even if they finally realize cylinder #11 is in trouble, they could miss a number of other issues. Along the same lines, if they don’t clear the codes after repairs, the owner could end up returning in a week because their Check Engine light is still on.

How serious is the P3483 code?

While this code isn’t something that will end in an accident, it will absolutely make driving the vehicle extremely difficult so it should get looked at right away.

What repairs can fix the P3483 code?

There are two main repairs a mechanic may have to implement to clear this code:

  • Simply replacing the solenoid for the #11 cylinder

  • Repairing or replacing any connector pins that have become loose or been damaged by corrosion

  • In rare scenarios, the mechanic may need to replace the ECM.

Additional comments for consideration regarding the P3483 code

When addressing this code, it’s important to follow the pinpoint test when diagnosing and repairing the first code received in the ECM. Only after that one has been cleared should a mechanic continue with the next one in line. If they try jumping to the P3483 code right away (assuming it wasn’t the first in line), other issues will almost certainly be missed.

Need help with a P3483 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
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