Skip the auto shop - Our mechanics make house calls

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

check engine light logo

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.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

Insurance Requirements for Car Registration in Kentucky
The Kentucky Transportation Cabinet requires that all drivers in Kentucky carry liability automotive insurance, or “financial responsibility” in order to operate a vehicle legally and maintain vehicle...
How to Transfer a Car Title in Idaho
In order to prove ownership of a car, you must have the title. However, when a car is sold, given away or inherited, the title needs...
Veteran and Military Driver Laws and Benefits in Idaho
The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the...


Related questions

Q: How long and what is the process to replace a fuel pressure sensor?

A professional mechanic would require roughly 5 hours. (If just the regulator is replaced that takes about 1 hour). Some parts, as noted below, cannot be re-used, you need a precision inch pound torque wrench, FSM instructions (and TSB updates...

Q: I have a 2002 pt cruiser today I had to jump started and on the road the radio would tyen on and off the mileage light would flick

Hello, and thank you for writing in. The vehicle is likely experiencing an issue with the alternator or charging system. When the vehicle is running at a higher RPM, the alternator is working harder to produce more electricity. When you...

Q: rough idle and misfiring at stops

Lets start with what the codes mean. P0060 - indicates that there is a network failure to the ECU. One or more control modules are not communicating. This is usually caused by a bad ECU, poor electrical connections from corrosion...