Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with a part of the engine that controls how the valves open and close. It's like a switch that isn't working right on one side of the engine.
The P11A7 code indicates an issue with the Variable Valve Lift (VVL) control circuit on Bank 2 of the engine. The circuit is open, meaning there's a break in the electrical connection.
The Variable Valve Lift (VVL) system is responsible for adjusting the valve lift in the engine to optimize performance and efficiency. An open circuit in the VVL control phase U means that the electrical path is broken, preventing the system from functioning properly.
• Check Engine Light is on
• Reduced engine performance
• Poor fuel efficiency
• Faulty VVL solenoid
• Damaged wiring or connectors
• Faulty ECM (Engine Control Module)
VVL: Variable Valve Lift
ECM: Engine Control Module
• Use a scan tool to verify the code.
• Inspect the VVL solenoid and wiring for damage.
• Test the VVL solenoid for proper operation.
• Replace the faulty VVL solenoid.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $500
Moderate
• Nissan Altima
• Infiniti Q50
• Nissan Maxima
• Regular maintenance checks
• Ensure proper oil levels and quality
• Inspect electrical connections periodically
Engine Performance
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
Check with your vehicle manufacturer for specific warranty coverage on engine components.
This code has been associated with issues in vehicles using advanced valve timing systems, particularly in models with VVL technology.
Moderate – While the vehicle may still operate, performance and efficiency are compromised.
Operating a vehicle with a malfunctioning engine control system can lead to further damage and may not meet emissions standards.
• Engine at operating temperature
• Vehicle in park or neutral
The VVL solenoid is typically located on the cylinder head of Bank 2.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to reduced engine performance and fuel efficiency, and may cause further damage.
Q: Can I drive my car with this code?
A: You can drive your car, but it's not recommended as it may lead to further issues.
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