🔍

P2651: B Rocker Arm Actuator System Performance/Stuck Off Bank 1

Severity
Low
NHTSA Reports
1
Vehicles Affected
1
System
Powertrain

What Does P2651 Mean?

P2651 is a diagnostic trouble code indicating: B Rocker Arm Actuator System Performance/Stuck Off Bank 1. This code relates to the powertrain system. It has been reported in NHTSA complaints across 1 different vehicle models.

Symptoms of P2651

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"There has been a series of constant issues with this model and each issue has been brought to a certified Honda dealership and was supposedly "fixed" engine code P0300 (random/multiple cylinder misfire),P2651 B rocker arm Actuator system, P0087 Fuel Rail/system pressure, P0304,P0303 cylinder 3 and "

— Honda Accord owner, 03/17/2023

Source: NHTSA Complaints Database

Most Reported Vehicles for P2651

Based on NHTSA owner complaint data.

# Vehicle Reports
1 HONDA ACCORD

Frequently Asked Questions

Can I drive with this code?
It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon.
Will this code clear itself?
Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first.
How do I find the exact cause?
A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component.

What To Do Next

Possible Fixes

  • 🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
  • 🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)
  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

Related Codes

P2600 Coolant Pump A Control Circuit/Open P2601 Coolant Pump A Control Circuit Performance/Stuck Off P2602 Coolant Pump A Control Circuit Low P2603 Coolant Pump A Control Circuit High P2604 Intake Air Heater A Circuit Range/Performance P2605 Intake Air Heater B Circuit/Open P2606 Intake Air Heater B Circuit Range/Performance P2607 Intake Air Heater B Circuit Low P2608 Intake Air Heater B Circuit High P2609 Intake Air Heater System Performance