Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is saying that it can't control one of the exhaust valves in the engine properly. It's like a switch is stuck in the off position for that part.
The engine control module (ECM) has detected a low voltage condition in the circuit that controls the exhaust valve for cylinder 2.
The P3415 code indicates that the ECM has found an issue with the circuit controlling the exhaust valve for cylinder 2. This could be due to a wiring problem, a faulty solenoid, or a malfunctioning ECM. The circuit is not receiving the expected voltage, which affects the valve's operation.
• Check Engine Light is on
• Reduced engine performance
• Rough idling
• Faulty exhaust valve control solenoid
• Wiring issues in the exhaust valve circuit
• Malfunctioning ECM
ECM: Engine Control Module
Solenoid: A device that converts electrical energy into mechanical movement
• Use an OBD-II scanner to verify the code.
• Inspect the wiring and connectors for cylinder 2 exhaust valve solenoid.
• Test the exhaust valve control solenoid for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the exhaust valve control solenoid if faulty.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regularly inspect wiring and connectors for damage.
• Ensure timely maintenance of the engine.
• Use high-quality engine oil.
Engine Performance
• Avoid driving the vehicle until the issue is resolved to prevent further damage.
• Consult a professional mechanic if you are not experienced with engine repairs.
Check with the vehicle manufacturer for warranty coverage on engine components.
This code has been reported in vehicles with active fuel management systems, where cylinder deactivation is used to improve fuel efficiency.
Moderate – It should be addressed soon to avoid potential engine damage.
Driving with a malfunctioning exhaust valve control can lead to increased emissions and potential engine damage.
• Engine at operating temperature
• Vehicle in park or neutral
The exhaust valve control solenoid for cylinder 2 is typically located near the engine's cylinder head.
Q: Can I drive with a P3415 code?
A: It's not recommended to drive with this code as it can lead to engine damage.
Q: How can I clear a P3415 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, it should not return.
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