P2650 OBD-II Trouble Code: “B” Rocker Arm Actuator Control Circuit Open Bank 1

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Cost of diagnosing the P2650 code

P2650 is a diagnostic trouble code (DTC) for "“B” Rocker Arm Actuator Control Circuit Open Bank 1". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

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P2650 trouble code definition

“B” Rocker Arm Actuator Control Circuit Open Bank 1

What the P2650 code means

P2650 is an OBD-II generic code for the engine control module (ECM) detecting the B rocker arm actuator control circuit for bank 1 has an open circuit. This could be anywhere in the actuator circuit.

What causes the P2650 code?

  • The ECM detects an open circuit signal from the B rocker arm actuator and sets the code in memory. The Check Engine Light will then be turned on.

  • The connection to the actuator or the actuator has an open circuit.

What are the symptoms of the P2650 code?

  • The car may run erratic or power will be affected.

  • The Check Engine Light will be illuminated.

How does a mechanic diagnose the P2650 code?

  • Scans codes and documents the code in the ECM to view the freeze frame data for the code

  • Checks the wiring and connector to the actuator to make sure it is okay

  • Performs the manufacture pinpoint test on the B rocker arm actuator to verify if the failed actuator or wiring is open

Common mistakes when diagnosing the P2650 code

  • Replacing the actuator without verifying the open circuit
  • Failing to clear the ECM codes after the system is repaired
  • Replacing parts when the connector is not making contact or broke

How serious is the P2650 code?

  • Code P2650 is a code for the B rocker arm control circuit and will cause the engine to run erratic.

What repairs can fix the P2650 code?

  • Replacing the B rocker arm actuator
  • Repairing the wiring harness or connector to the actuator

Additional comments for consideration regarding the P2650 code

Code P2650 is not a very common code since most vehicles do not have actuators for the rocker arms of the engines they manufacture.

Need help with a P2650 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

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