Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that there's a problem with a part of the engine that helps control how the car runs. It's like a switch that isn't working right on one side of the engine.
The P2663 code indicates that the engine control module (ECM) has detected a low voltage condition in the rocker arm actuator control circuit on bank 2.
The rocker arm actuator is part of the variable valve timing (VVT) system, which helps optimize engine performance and efficiency. Bank 2 refers to the side of the engine opposite to bank 1 in a V-type engine. A low circuit condition suggests insufficient voltage or a poor connection in the actuator's control circuit.
• Check Engine Light is on
• Reduced engine performance
• Poor fuel economy
• Faulty rocker arm actuator
• Wiring issues or poor connections in the circuit
• Faulty ECM
ECM: Engine Control Module
VVT: Variable Valve Timing
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the rocker arm actuator for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty rocker arm actuator.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Honda Accord
• Acura TL
• Chevrolet Silverado
• Regular maintenance and inspections
• Ensure proper oil levels and quality
• Address wiring issues promptly
Engine Performance
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
Check with the manufacturer for specific warranty coverage related to engine components.
This code has been associated with issues in vehicles with advanced VVT systems, particularly in models from the early 2000s.
Moderate – It should be addressed soon to avoid potential engine performance issues.
Driving with a malfunctioning engine component can lead to increased emissions and potential safety risks.
• Engine at operating temperature
• Vehicle in park or neutral
The rocker arm actuator is located on the cylinder head of bank 2, typically near the camshaft.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to reduced engine performance and potential damage over time.
Q: Can I drive my car with a P2663 code?
A: While you may be able to drive for a short period, it's best to address the issue soon to avoid further damage.
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