The P2663: B Rocker Arm Actuator Control Circuit Low Bank 2 refers to a situation where there is low voltage detected in the rocker arm actuator control circuit for Bank 2. This may be due to a faulty actuator, issues with the control circuit, or problems with the wiring or connectors, leading to improper engine valve timing and reduced engine performance.
P2663 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P2663: B Rocker Arm Actuator Control Circuit Low Bank 2 |
| Is it serious? | Yes, this can lead to engine misfires, poor performance, and increased emissions. |
| Possible causes | – Low voltage in the rocker arm actuator control circuit – Faulty actuator or control circuit – Wiring or connector issues |
| How to diagnose? | – Measure voltage in the rocker arm actuator control circuit – Inspect the actuator and wiring – Check for shorts or damage in connectors – Replace components as needed |
P2663 Meaning
The P2663: B Rocker Arm Actuator Control Circuit Low Bank 2 code indicates that the voltage in the control circuit for the rocker arm actuator in Bank 2 is lower than expected. This can be caused by a fault in the actuator, issues in the control circuit, or problems with the wiring or connectors. Low voltage can affect engine performance by preventing proper control of the rocker arms, leading to poor engine efficiency and potential misfires.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to identify any related codes that could provide additional context about the issue. | OBD-II Scanner |
| Measure Voltage in Control Circuit | Use a multimeter to measure the voltage in the rocker arm actuator control circuit to ensure it is within the manufacturer’s specifications. | Multimeter |
| Inspect the Rocker Arm Actuator | Visually inspect the actuator for any signs of damage or wear, ensuring that all connections are secure. | Flashlight, Safety Gloves |
| Check Wiring and Connectors | Inspect the wiring and connectors leading to the actuator for shorts, loose connections, or damage. Repair as needed. | Flashlight, Multimeter |
| Inspect Control Circuit | Check the control circuit for any issues, such as low voltage or improper signals affecting the actuator’s operation. | Multimeter, Diagnostic Tool |
| Replace Faulty Components | If any component (actuator, wiring, or connectors) is found faulty, replace it accordingly. | Replacement Parts |
| Clear the Code and Test Drive | After repairs, use an OBD-II scanner to clear the code, and then perform a test drive to confirm the issue is resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | Re-scan the vehicle to ensure the P2663 code does not return. | OBD-II Scanner |
Free PDF: How to choose OBD2 scanner
I’ve made you a free PDF to choose the OBD2 scanner in 5 minutes.
✅ Which OBD2 scanner is best?
✅ Which type should you get (DIY, Pro, Hobby)
✅ What is the best scanner for the exact brand/feature (e.g best for BMW)
✅ How to get a Bi-Directional tool for as cheap as $40
✅ Discount coupons for scanners
PDF is 100% free and it is designed to help you pick a scanner in less than a few minutes! Not a boring 50-page guide.
Just tell me where to send it.
