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Code P2655

Symptoms

• Check Engine Light illuminated

• Reduced engine performance

• Poor fuel economy

Common Causes

• Faulty rocker arm actuator

• Open or shorted wiring in the actuator circuit

• Faulty PCM

Glossary

PCM: Powertrain Control Module

VVT: Variable Valve Timing

Related Codes

• P2654

• P2656

Official description

A Rocker Arm Actuator Control Circuit/Open Bank 2

Laymans terms

This code means there's a problem with a part in the engine that helps control how the engine's valves open and close. It's like a switch isn't working right, and it's on the side of the engine that usually has the second set of cylinders.

Explanation

The P2655 code is triggered when the Powertrain Control Module (PCM) detects an open circuit or a problem in the control circuit of the rocker arm actuator for the second bank of the engine.

Technical description

The rocker arm actuator is part of the Variable Valve Timing (VVT) system, which adjusts the timing of the engine's valves for better performance and efficiency. Bank 2 refers to the side of the engine that does not contain cylinder 1. An open circuit or failure in this actuator's control circuit can affect engine performance.

Diagnosis steps

• 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 procedures

• Repair or replace damaged wiring or connectors.

• Replace the faulty rocker arm actuator.

• Reprogram or replace the PCM if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Honda Accord

• Acura TL

• Toyota Camry

Preventive measures

• Regular maintenance and oil changes

• Inspect wiring and connectors periodically

• Use quality engine oil

Error code type

Engine Performance

User experience recommendations

• Do not ignore the Check Engine Light.

• Have the vehicle inspected by a professional if you're unsure.

• Keep up with regular maintenance to prevent future issues.

Warranty information

Check with your vehicle manufacturer for warranty coverage on engine components.

Historical data

This code has been associated with issues in vehicles using VVT systems, particularly in models with high mileage.

Urgency level

Moderate – While the car may still run, it could lead to decreased performance and efficiency.

Legal and safety notice

Operating a vehicle with a malfunctioning engine component can lead to further damage and may not comply with emissions regulations.

Testing conditions

• Engine at operating temperature

• Vehicle in neutral or park

Component location

The rocker arm actuator is located on the cylinder head of the engine, typically on the side opposite cylinder 1.

FAQs

Q: Can I drive with a P2655 code?
A: While the car may still be drivable, it's best to address the issue to prevent further damage.

Q: How do I reset the Check Engine Light after repairs?
A: Use an OBD-II scanner to clear the code after the repair is complete.

Last updated: Mar 2, 2026 • Source: internal database
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