P2655 OBD-II: "A" Rocker Arm Actuator Control Circuit/Open

OBD II Fault Code

• OBD II P2655

OBD-II Code Decreased engine performance is defined as a "A" Rocker Arm Actuator Control Circuit/Open

Newer vehicles use variable valve technology to allow for greater airflow through the engine at higher RPMs. This allows for better performance over a wider range. Some manufacturers are moving to a variable valve lift system that allows the valve to open wider. Internal to the variable lift rocker arm assembly are position sensors so the engine computer (PCM) can monitor what the assembly is doing. If the solenoid inside the assembly fails, code P2655 is set.

Decreased engine performance Symptoms

• Decreased engine performance
• Increased fuel consumption

Common Problems That Trigger the P2655 Code

• Powertrain Control Module (PCM) failure
• Variable valve lift controller assembly failure
• Wiring issue