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P2659 OBD2: "A" Rocker Arm Actuator Control Circuit High

P2659 OBD2: “A” Rocker Arm Actuator Control Circuit High

Understanding OBD-II codes is crucial for maintaining vehicle health. One such code is P2659, which indicates an issue with the rocker arm actuator control circuit.

What Does the P2659 Code Mean?

The P2659 code signifies that the engine control module (ECM) has detected a high voltage reading from the “A” rocker arm actuator control circuit. This could mean that the actuator is not functioning correctly, which can impact engine performance.

What Causes the P2659 Code?

Several factors may trigger the P2659 code:

  • Low engine oil level
  • Failure of the rocker arm oil pressure solenoid
  • Wiring issues within the actuator control circuit
  • Powertrain Control Module (PCM) failure

What Are the Symptoms of the P2659 Code?

If your vehicle has triggered the P2659 code, you may experience the following symptoms:

  • Decreased engine performance
  • Increased fuel consumption
  • Potential engine misfires

How Serious Is the P2659 Code?

The P2659 code is classified as urgent. Ignoring this code can lead to significant engine damage or safety hazards while driving. Immediate attention is recommended to avoid further complications.

How to Diagnose the P2659 Code

To diagnose the P2659 code, follow these steps:

  1. Use an OBD-II scanner to confirm the P2659 code and check for any other related codes.
  2. Inspect the engine oil level and condition.
  3. Examine the wiring and connectors associated with the rocker arm actuator for damage or corrosion.
  4. Test the rocker arm oil pressure solenoid for proper functionality.
  5. Consider testing the Powertrain Control Module (PCM) if all other components are functioning as expected.

Common Repairs for the P2659 Code

Repairs for the P2659 code may include:

  • Refilling or changing the engine oil
  • Replacing the rocker arm oil pressure solenoid
  • Repairing or replacing damaged wiring and connectors
  • Replacing the Powertrain Control Module (PCM) if necessary

How Much Does It Cost to Fix the P2659 Code?

The cost to fix the P2659 code can vary widely based on the underlying issue:

  • Oil change: $50 – $100
  • Rocker arm oil pressure solenoid replacement: $100 – $300
  • Wiring repairs: $50 – $200
  • PCM replacement: $500 – $1,500

Overall, expect to spend between $100 and $1,500 depending on the repair needed.

Can I Fix the P2659 Code Myself?

While some aspects of fixing the P2659 code can be done at home, such as checking the oil level or inspecting wiring, it is advisable to seek professional help for more complex issues. Proper diagnosis and repair are crucial to avoid further damage to your vehicle.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

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