P2653 Fault Code

B Rocker Arm Actuator Control Circuit Low Bank 1

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2653 fault code indicates a problem with the rocker arm actuator control circuit for Bank 1 of the engine. This actuator is responsible for adjusting the timing of the rocker arms in order to optimize engine performance based on changing conditions. When the circuit is low, it means there is insufficient voltage being supplied to the actuator, potentially affecting engine efficiency and power output.

What are the symptoms of the P2653 code?

When the P2653 code is triggered, you may experience various symptoms such as:

• Decreased engine performance or power
• Rough idling or engine misfires
• Increase in fuel consumption
• Illumination of the check engine light
• Possible engine stalling in severe cases

What causes the P2653 code?

Several factors could lead to a low voltage condition in the rocker arm actuator control circuit, including:

• Faulty rocker arm actuator
• Damaged wiring or connectors in the actuator circuit
• Short circuits or open circuits in the electrical system
• Issues with the engine control module (ECM)
• Poor ground connection affecting the circuit

How to fix P2653?

To resolve a P2653 fault code, follow these steps:

• Scan the vehicle with an OBD-II scanner and confirm the code
• Visually inspect the rocker arm actuator, wiring, and connectors for damage
• Test the rocker arm actuator for proper operation and replace if necessary
• Check the voltage supply and ground connection to the actuator
• If no physical issues are found, consider reprogramming or replacing the engine control module if it is determined to be faulty