P2649 OBD-II: "A" Rocker Arm Actuator Control Circuit High

What Does P2649 Code Mean?

OBD-II Code P2649 is defined as a "A" Rocker Arm Actuator Control Circuit High

The Rocker Arm Control Solenoid supplies hydraulic pressure to the Variable Timing mechanism. This allows the Variable Timing System to adjust valve timing as needed. When the engine's control module (PCM) does not see the correct voltage signal back from the Rocker Arm Control Solenoid, the PCM will set code P2649.

P2649 Symptoms

• Decreased engine performance
• Increased fuel consumption

Common Problems That Trigger the P2649 Code

• Engine oil level is too low
• Powertrain Control Module (PCM) failure
• Rocker arm oil pressure solenoid failure
• Wiring issue