AutoCodesDodge – P2657 Dodge

P2657 Dodge Code - 'A' Rocker Arm Actuator System Stuck On 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
P2657 Dodge indicates 'A' Rocker Arm Actuator System Stuck On 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 2,618
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 25, 2019
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Code P2657 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 P2657 Dodge - 'A' Rocker Arm Actuator System Stuck On Bank 2 - AutoCodes.com
P2657 Dodge Code - 'A' Rocker Arm Actuator System Stuck On Bank 2

What are the Possible Causes of the DTC P2657 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 P2657 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 P2657 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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Need Help with the Code?

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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 P2657 Dodge Code

What does the OBDII code P2657 mean on a Dodge vehicle?

Code P2657 indicates that the 'A' rocker arm actuator system on Bank 2 is stuck in the "on" position, which can impact engine performance.

What are the common symptoms of code P2657?

Symptoms may include reduced engine performance, rough idling, poor fuel economy, and the illumination of the check engine light.

What causes the P2657 code on a Dodge?

Common causes include low or dirty engine oil, a malfunctioning rocker arm actuator, wiring or connector issues, or a faulty Powertrain Control Module (PCM).

Can dirty engine oil trigger the P2657 code?

Yes, dirty or low engine oil can restrict the proper function of the rocker arm actuator, leading to this code.

How do you diagnose a P2657 code?

Diagnosis involves inspecting the engine oil condition, checking the rocker arm actuator for damage or clogging, and testing the wiring and connectors for continuity or damage.

How serious is the P2657 code?

While the vehicle may still be drivable, ignoring this code can lead to further engine damage or reduced performance over time.

Can I fix the P2657 code by changing the oil?

In some cases, changing the oil and filter can resolve the issue if the problem is caused by dirty or low oil levels.

How much does it cost to repair a P2657 code?

Repair costs vary but may range from $100 for an oil change to $500 or more if the rocker arm actuator needs to be replaced.

Can I drive my Dodge with the P2657 code?

Driving is possible, but it’s not recommended for long periods as it may worsen the issue or damage the engine further.

What tools are needed to troubleshoot the P2657 code?

A basic OBDII scanner, a multimeter for electrical testing, and possibly engine oil pressure testing tools are needed for diagnosis.

Discuss the causes and fixes for P2657 Dodge OBDII Code

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