OBD-II Generic Error Code P3497: How to Fix Cylinder Deactivation System Bank 2

Medium 1-2 hours Medium Severity Verified July 2026
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Error Code
P3497
Brand
OBD-II Generic
Product Type
automotive
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
1-2 hours
Error code P3497 indicates a problem with the cylinder deactivation system on bank 2 of your engine. This system shuts down cylinders to save fuel, and if it malfunctions, you may experience rough idle, reduced power, or the check engine light turning on. Follow these steps to diagnose and fix the issue.
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Tools You'll Need

How to Fix Error Code P3497

  1. Scan for Additional Codes

    Ensure the engine is off and the key is in the 'on' position when reading codes.

  2. Inspect the Cylinder Deactivation Solenoid

    Disconnect the battery negative terminal before working on electrical components.

  3. Test the Solenoid Resistance

    Wear safety glasses and gloves when working with electrical systems.

  4. Check Engine Oil Level and Condition

    Always use the recommended oil viscosity for your vehicle.

  5. Inspect the Oil Pressure Switch or Sensor

    Oil may drip when removing the sensor; have rags ready.

  6. Clear the Code and Test Drive

    Monitor gauges and listen for unusual noises during the test drive.

Parts You May Need

Cylinder deactivation solenoid
Check Price on Amazon
Oil pressure switch/sensor
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Engine oil and filter
Check Price on Amazon
Cylinder deactivation solenoid
Check Price on Amazon
Oil pressure switch/sensor
Check Price on Amazon
Engine oil and filter
Check Price on Amazon
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When to Call a Professional

If you have inspected the solenoid, wiring, oil level, and sensor and the code persists, or if you are uncomfortable working on the engine, take the vehicle to a certified mechanic. Internal engine issues like worn lifters or camshaft problems require professional repair.

Frequently Asked Questions

What is cylinder deactivation and how does it work?
Cylinder deactivation temporarily shuts down some cylinders to improve fuel economy under light load conditions. The ECU activates solenoids to close valves and stop fuel injection.
Can I drive with code P3497?
Short distances may be okay, but driving with this code can cause rough running, reduced power, and potential damage to the deactivation system. It's best to diagnose and fix it promptly.
How much does it cost to fix P3497?
Costs vary: DIY with a solenoid replacement can be $50-150. If a mechanic diagnoses internal engine issues, costs can exceed $1000. Get a quote from a trusted shop.
Will an oil change fix P3497?
Sometimes. Low or dirty oil can affect the hydraulic system that operates the deactivation solenoids. Changing oil may resolve the issue if the condition is mild.
What vehicles are affected by P3497?
This code is common on vehicles with cylinder deactivation, such as General Motors, Honda, and Chrysler engines. Check your vehicle's service manual for specific information.

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