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Engine-Codes – Generic – P3402

P3402 Code - Cylinder 1 Deactivation Solenoid Valve Control Performance

Quick Answer

The P3402 diagnostic trouble code (DTC) refers to an issue with the Cylinder 1 Deactivation Solenoid Valve Control Performance. Common causes include Faulty Cylinder 1 Deactivation Solenoid Valve, Electrical issues such as wiring or connector problems, Mechanical issues with the solenoid valve or related components. 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
P3402 indicates Cylinder 1 Deactivation Solenoid Valve Control Performance.
Common causes
Common causes include Faulty Cylinder 1 Deactivation Solenoid Valve, Electrical issues such as wiring or connector problems, Mechanical issues with the solenoid valve or related components.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P3402 Description

The P3402 diagnostic trouble code (DTC) refers to an issue with the Cylinder 1 Deactivation Solenoid Valve Control Performance. This code typically indicates that there is a problem with the solenoid valve that controls the deactivation of cylinder 1 in the engine. In vehicles equipped with cylinder deactivation technology, this system allows the engine to shut off certain cylinders under light load conditions to improve fuel efficiency.

OBDII Code P3402 - Cylinder 1 Deactivation Solenoid Valve Control Performance
P3402 Code - Cylinder 1 Deactivation Solenoid Valve Control Performance

Common Causes of P3402

  1. Faulty Cylinder 1 Deactivation Solenoid Valve
  2. Electrical issues such as wiring or connector problems
  3. Mechanical issues with the solenoid valve or related components
  4. Engine control module (ECM) software update required
  5. Low engine oil level or poor oil quality

Symptoms of P3402

  1. Check Engine Light illuminated on the dashboard
  2. Engine misfires or rough idling
  3. Reduced power and acceleration
  4. Poor fuel efficiency
  5. Engine vibrations or unusual noises

How to Fix P3402

  1. Begin by diagnosing the specific cause of the P3402 code using a diagnostic scan tool to pinpoint the issue with the Cylinder 1 Deactivation Solenoid Valve.
  2. Inspect the wiring and connectors associated with the solenoid valve for any damage or corrosion. Repair or replace any faulty wiring as needed.
  3. Test the solenoid valve itself to ensure it is functioning properly. Replace the solenoid valve if it is found to be faulty.
  4. Clear the DTC and test drive the vehicle to verify that the issue has been resolved and that the Check Engine Light does not reappear.
  5. If the problem persists, further diagnostics may be required to identify any additional underlying issues that could be causing the Cylinder 1 Deactivation Solenoid Valve Control Performance problem.

Cost to Fix P3402

The typical repair costs for addressing the P3402 code related to the Cylinder 1 Deactivation Solenoid Valve Control Performance can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. In general, the cost for parts such as a new solenoid valve can range from $50 to $150, while labor costs may be between $100 and $200. Overall, the total repair cost could be estimated to be between $150 and $350. It's important to note that the actual costs may vary based on the vehicle make and model, location, and the extent of the repairs needed. It's recommended to consult with a qualified mechanic or auto repair shop to get an accurate estimate for the repair.

What does this mean?

Tech Notes for P3402

Although in some cases changing the engine oil may fix the problem, usually the Multi Displacement System Solenoid may need to replaced.

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Code P3402 Information for Specific Makes

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.

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