P2652 — B Rocker Arm Actuator System Stuck On Bank 1

What Does P2652 Mean?

P2652 is a diagnostic trouble code indicating: B Rocker Arm Actuator System Stuck On Bank 1. This code relates to the powertrain system. It has been reported in NHTSA complaints across 2 different vehicle models.

Symptoms of P2652

⚠️ Check engine light illuminated
⚠️ Vehicle enters limp/reduced power mode

Common Causes

🔍 Sensor or control module malfunction

P2652 Reports by Year

2024

1

2019

1

2020

1

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"10/4/2023 (55K miles), the vehicle suddenly lost power at interstate speed and dropped to three cylinders. Warning lights came on disabling all automatic safety systems. I took the vehicle to a parts store and OBD indicated an oil pressure sensor in VTEC Bank 1. After restarting the vehicle I onc"
— Honda Odyssey owner, 02/02/2024

"We bought this van new and twice since owning it-once in 2019 at 5,418 miles and this month (November 2025) at 136,947 miles-we have been driving down the interstate with a van full of people, when without any previous warning, suddenly multiple warning lights come on all at once (the check engine l"
— Honda Odyssey owner, 06/24/2019

"GETTING AN EMMISSIONS SYSTEM WARNING ON VEHICLE. VEHICLE HAS UNDER 50K MILES. ISSUE CAUSED VEHICLE TO LOSE POWER AT HIGHWAY SPEEDS AND WAS UNABLE TO MAINTAIN HIGHWAY SPEED. VEHICLE IS DISPLAYING TWO OBD FAULT CODES P2652 P0430."
— Honda Pilot owner, 02/23/2020

Source: NHTSA Complaints Database

Most Reported Vehicles for P2652

Based on NHTSA owner complaint data.

#	Vehicle	Reports
1	HONDA ODYSSEY
2	HONDA PILOT

P2652 Reports by Vehicle

Detailed NHTSA complaint analysis for each vehicle model.

HONDA ODYSSEY

2 NHTSA reports · Peak: 2018, 2019

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
🔧 Test the relevant sensor(s) with a multimeter before replacing
🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P2652: B Rocker Arm Actuator System Stuck On Bank 1