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Code P2654

Symptoms

• Check Engine Light is on

• Reduced engine performance

• Poor fuel economy

Common Causes

• Faulty rocker arm actuator

• Wiring issues such as a short circuit

• Malfunctioning PCM

Glossary

PCM: Powertrain Control Module, the computer that controls engine and transmission functions.

VVT: Variable Valve Timing, a system that optimizes engine performance and efficiency.

Related Codes

• P2655

• P2646

Official description

B Rocker Arm Actuator Control Circuit High Bank 1

Laymans terms

This code means that the computer in your car found a problem with a part that helps control how the engine's parts move. It's like if a switch that controls a toy car's wheels got stuck in the 'go fast' position.

Explanation

The P2654 code indicates that the powertrain control module (PCM) has detected a high voltage condition in the rocker arm actuator control circuit for bank 1, which may affect engine performance.

Technical description

The rocker arm actuator is part of the variable valve timing (VVT) system, which optimizes engine performance and efficiency. A 'high' condition in the circuit suggests that the voltage is above the expected range, potentially due to a short circuit or a faulty actuator.

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the wiring and connectors for damage.

• Test the rocker arm actuator for proper function.

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 - $600

Difficulty level

Moderate

Commonly affected vehicles

• Honda Accord

• Acura TL

• Honda Odyssey

Preventive measures

• Regular maintenance checks

• Ensure proper oil levels and quality

• Inspect wiring and connectors periodically

Error code type

Engine Performance

User experience recommendations

• Avoid driving the vehicle until repaired to prevent further damage.

• Consult a professional mechanic for an accurate diagnosis.

Warranty information

Check if the vehicle's powertrain warranty covers the rocker arm actuator.

Historical data

This code is commonly reported in vehicles with aging VVT systems or those with poor maintenance history.

Urgency level

Moderate – It should be addressed soon to prevent potential engine damage.

Legal and safety notice

Driving with this code active may lead to increased emissions and reduced engine performance.

Testing conditions

• Engine at operating temperature

• Vehicle at idle or low speed

Component location

The rocker arm actuator is typically located on the cylinder head of the engine, near the camshaft.

FAQs

Q: Can I drive with a P2654 code?
A: It's not recommended to drive with this code active, as it can lead to engine performance issues.

Q: What happens if I ignore the P2654 code?
A: Ignoring this code can lead to poor fuel economy, reduced engine performance, and potential engine damage.

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