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P3473 is a diagnostic trouble code (DTC) for "Cylinder 10 Deactivation/Intake Valve Control Circuit/Open". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
The P3473 code relates to the deactivation mode of cylinder 10. If this code has been stored, it means that the PCM has detected an incorrect range of voltage readings for the cylinder deactivation mode, in comparison to the manufacturer’s specifications.
In order to provide the best fuel economy, the ECM will deactivate certain cylinders during certain driving conditions. During the deactivation command of cylinder 10, a signal is sent to the PCM informing it of the current operation efficiency via a voltage reading. If the voltage reading does not align with the manufacturer specifications, the PCM will store the P3473 code.
The underlying cause of the P3473 code can be one of a number of things, including:
The illumination of the Check Engine Light is the only symptom that is typically observed with the P3473 code.
After verifying the code with an OBD-II scanner, a mechanic should first perform a visual inspection of all the electrical components, and repair any elements that damaged, corroded, loose, or otherwise inoperable. The code should then be cleared from the PCM, and the system should be retested. If the code returns to the PCM, the mechanic should then proceed to test each potentially faulty component until the proper diagnosis is found.
If the P3473 code is detected, the vehicle needs to be repaired as soon as possible. The fault that causes the P3473 code can quickly create larger issues that will require more expensive repairs in the future.
Repairs that may be performed to fix the P3473 code include:
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