AutoCodes – Dodge – P2656 Dodge

P2656 Dodge Code - 'A' Rocker Arm Actuator System Performance/Stuck Off Bank 2

Quick Answer

The Engine Control Module (ECM) commands the Rocker Arm Actuator to control the oil hydraulic circuit. Common causes include Low or overfilled engine oil, Incorrect engine oil type, Faulty 'A' Rocker Arm Actuator. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P2656 Dodge indicates 'A' Rocker Arm Actuator System Performance/Stuck Off Bank 2.
Common causes: Common causes include Low or overfilled engine oil, Incorrect engine oil type, Faulty 'A' Rocker Arm Actuator.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 2,430

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 25, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2656 Dodge Description

The Engine Control Module (ECM) commands the Rocker Arm Actuator to control the oil hydraulic circuit. Oil flows through the Rocker Arm Actuator to the variable valve timing system to adjust the engine's valve timing. The variable valve timing (VVT) system is used to improve engine's performance, fuel economy or emissions. The ECM monitors the Rocker Arm Actuator circuit and sets the OBDII when the 'A' Rocker Arm Actuator circuit is out of factory specifications.

OBDII Code P2656 Dodge - 'A' Rocker Arm Actuator System Performance/Stuck Off Bank 2 - AutoCodes.com — P2656 Dodge Code - 'A' Rocker Arm Actuator System Performance/Stuck Off Bank 2

What does this mean?

What are the Possible Causes of the DTC P2656 Dodge?

Low or overfilled engine oil
Incorrect engine oil type
Faulty 'A' Rocker Arm Actuator
'A' Rocker Arm Actuator harness is open or shorted
'A' Rocker Arm Actuator circuit poor electrical connection

How to Fix the DTC P2656 Dodge?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2656 Dodge code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2656 Dodge Code

1. What does the OBDII code P2656 mean on a Dodge?

The P2656 code indicates an issue with the 'A' rocker arm actuator system performance or it being stuck in the "off" position on Bank 2 of the engine.

2. What are common symptoms of the P2656 code on a Dodge?

Symptoms may include reduced engine performance, poor fuel economy, rough idling, and potentially an illuminated check engine light.

3. What causes the P2656 code on a Dodge?

Common causes include low or dirty engine oil, a faulty rocker arm actuator, wiring issues, or an ECM/PCM malfunction.

4. How can I diagnose the P2656 code on my Dodge?

Start by checking the engine oil level and quality, inspecting the rocker arm actuator wiring and connectors for damage, and testing the actuator for proper operation.

5. Can I drive my Dodge with the P2656 code?

Driving with this code is not recommended, as it may lead to further engine damage or reduced performance. Address the issue promptly.

6. How do I fix the P2656 code on a Dodge?

Repairs may involve changing the engine oil, replacing the rocker arm actuator, repairing damaged wiring, or reprogramming/updating the ECM/PCM.

7. Could low oil pressure trigger the P2656 code?

Yes, low oil pressure or insufficient oil flow to the actuator system can cause this code.

8. Is the P2656 code specific to Dodge vehicles?

No, the P2656 code is a generic OBDII code, but the exact diagnosis and repair steps may vary depending on the vehicle make and model.

9. How much does it cost to fix the P2656 code on a Dodge?

The repair cost can vary depending on the specific cause, ranging from $100 for an oil change to over $500 for actuator replacement or wiring repairs.

10. Can a faulty PCM cause the P2656 code on a Dodge?

While rare, a malfunctioning PCM can cause this code if it fails to properly control the rocker arm actuator system.