Cylinder 2 Deactivation/Exhaust Valve Control Circuit Open
What does P3410 mean?
The P3410 code means the vehicle's onboard diagnostic system has detected: Cylinder 2 Deactivation/Exhaust Valve Control Circuit Open. This is a moderate severity code.
Common Symptoms
- Check Engine Light on
- Rough running during deactivation
- Engine vibration at cruise
- Ticking from cylinder 2 exhaust side
- Fuel economy reduction
Probable Causes (Ranked by Likelihood)
- Failed cylinder 2 exhaust deactivation solenoid Very High
- Open circuit in the exhaust solenoid wiring High
- Corroded connector pins Moderate
- ECM driver circuit issue Moderate
- Exhaust lifter mechanical failure Low
Step-by-Step Diagnostic Procedure
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Measure cylinder 2 exhaust deactivation solenoid resistance
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Inspect wiring for open circuits
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Check connector for corrosion
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Command solenoid operation with a scan tool
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Replace solenoid if coil resistance is out of spec
Frequently Asked Questions
Can a failed exhaust solenoid cause a misfire?
Yes, if the exhaust valve remains open or closed at the wrong time due to solenoid failure, the cylinder cannot fire properly, which can set a misfire code.
How do I know if it is the solenoid or lifter?
If the solenoid tests electrically good (correct resistance and responds to scan tool commands) but the cylinder still does not deactivate properly, the lifter is likely the issue.
Are exhaust solenoids the same part as intake solenoids?
On some engines they are the same part number, while on others they differ. Always verify the correct part number for the specific solenoid position.