P2658 Fault Code

A Rocker Arm Actuator Control Circuit Low Bank 2

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

The Rocker Arm Actuator Control Circuit Low Bank 2 fault code indicates a malfunction in the actuator responsible for controlling the rocker arms on the second bank of the engine. This system adjusts the timing of the valves to accommodate various engine speeds and loads, enhancing performance and efficiency.

What are the symptoms of the P2658 code?

Common symptoms that may accompany this fault code include:

• Decreased engine performance and responsiveness.
• Increased fuel consumption due to improper valve timing.
• Engine misfires or rough idling.
• Check Engine Light (CEL) illuminated on the dashboard.

What causes the P2658 code?

Possible causes for this fault code include:

• Damaged or corroded wiring in the rocker arm actuator circuit.
• A faulty rocker arm actuator that fails to operate or respond correctly.
• Poor connections at the actuator or the Engine Control Unit (ECU).
• Issues with the vehicle's power supply affecting the actuator's functionality.

How to fix P2658?

To resolve the P2658 fault code, consider the following steps:

• Inspect the wiring and connectors in the rocker arm actuator circuit for signs of damage or corrosion, and repair as necessary.
• Test the rocker arm actuator for proper operation and replace it if deemed faulty.
• Ensure all connections are secure and clean to prevent electrical issues.
• Clear the fault codes and conduct a test drive to ensure the issue is resolved.