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Our automotive experts have put together the following information about the P3495 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P3495 code.

OBD II Fault Code

  • OBD II P3495

    OBD-II Code Decreased engine performance is defined as a Cylinder 12 Exhaust Valve Control Circuit Low

    In an effort to meet fuel an emissions standards, many manufacturers are utilizing cylinder deactivation systems. This system allows the engine's control module (PCM) to disable select cylinders when additional power is not needed from the engine, such as at idle or when cruising on the highway. If the engine's control module (PCM) determines that the Exhaust Valve for cylinder number twelve is not Turning on or off the way it is being commanded, the PCM will set code P3495.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Increased fuel consumption

    Common Problems That Trigger the P3495 Code

    • Engine oil level is too low
    • Powertrain Control Module (PCM) failure
    • Variable valve timing solenoid failure
    • Wiring issue
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