Engine-CodesGeneric – P3496

P3496 Code - Cylinder 12 Exhaust Valve Control Circuit High

Quick Answer

The P3496 diagnostic trouble code (DTC) indicates a problem with the exhaust valve control circuit in cylinder 12 of the engine. Common causes include Faulty exhaust valve control solenoid, Damaged wiring or connectors in the exhaust valve control circuit, Malfunctioning engine control module (ECM). 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
P3496 indicates Cylinder 12 Exhaust Valve Control Circuit High.
Common causes
Common causes include Faulty exhaust valve control solenoid, Damaged wiring or connectors in the exhaust valve control circuit, Malfunctioning engine control module (ECM).
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P3496 Description

The P3496 diagnostic trouble code (DTC) indicates a problem with the exhaust valve control circuit in cylinder 12 of the engine. In modern vehicles, the engine's valves are controlled by an electronic system that ensures proper timing and operation. The exhaust valve control circuit is responsible for regulating the opening and closing of the exhaust valve in cylinder 12.

OBDII Code P3496 - Cylinder 12 Exhaust Valve Control Circuit High
P3496 Code - Cylinder 12 Exhaust Valve Control Circuit High

Common Causes of P3496

  1. Faulty exhaust valve control solenoid
  2. Damaged wiring or connectors in the exhaust valve control circuit
  3. Malfunctioning engine control module (ECM)
  4. Sticking or damaged exhaust valve
  5. Poor maintenance or neglect of the engine components

Symptoms of P3496

  1. Rough idling or engine misfires
  2. Decreased engine power
  3. Poor fuel economy
  4. Illuminated check engine light
  5. Increased emissions

How to Fix P3496

  1. Use a diagnostic scan tool to retrieve the specific trouble code (P3496) and identify the cylinder 12 exhaust valve control circuit high issue.
  2. Inspect the wiring, connectors, and components of the exhaust valve control circuit for any damage or corrosion. Repair or replace as necessary.
  3. Test the exhaust valve control solenoid for proper operation and replace if faulty.
  4. Check the exhaust valve for any sticking or damage, and address any issues found.
  5. Clear the trouble code from the ECM memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P3496

The cost to repair a cylinder 12 exhaust valve control circuit high issue can vary depending on the specific cause of the problem and the vehicle's make and model. On average, the parts and labor for this repair could range from $200 to $500 or more. It's important to note that diagnostic time and labor rates at auto repair shops can impact the final cost, so it's recommended to get a detailed estimate from a trusted mechanic before proceeding with the repair.

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Code P3496 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.

Frequently Asked Questions about P3496 Code

1. What are the common symptoms of OBDII code P3496 (Cylinder 12 Exhaust Valve Control Circuit High)?

- Common symptoms include engine misfires, loss of power, rough idle, and an illuminated Check Engine Light.

2. What are the possible causes of OBDII code P3496?

- The code P3496 can be caused by issues such as a faulty exhaust valve control solenoid, wiring problems, or a malfunctioning engine control module.

3. How serious is OBDII code P3496?

- OBDII code P3496 should be addressed promptly as it can lead to poor engine performance and potential damage to the exhaust system if left unresolved.

4. Can I drive my vehicle with OBDII code P3496?

- It is not recommended to drive your vehicle with code P3496, as it may cause further damage to the engine or emissions system.

5. How do I diagnose OBDII code P3496?

- Diagnosing code P3496 typically involves using a scan tool to retrieve the code, inspecting the exhaust valve control circuit, and testing the related components for proper functionality.

6. How can I repair OBDII code P3496?

- Repairing code P3496 may involve replacing the faulty exhaust valve control solenoid, repairing damaged wiring, or reprogramming the engine control module.

7. Can a DIY enthusiast fix OBDII code P3496?

- While some aspects of diagnosing and repairing code P3496 may be within reach of DIY enthusiasts, it is recommended to seek professional help for proper diagnosis and repair.

8. How much does it cost to fix OBDII code P3496?

- The cost of fixing code P3496 can vary depending on the root cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.

9. Will resetting the Check Engine Light resolve OBDII code P3496?

- Resetting the Check Engine Light without addressing the underlying issue causing code P3496 will not fix the problem. The issue needs to be diagnosed and repaired to prevent it from reoccurring.

10. How can I prevent OBDII code P3496 from coming back?

- Regular maintenance, such as checking and replacing worn components, inspecting wiring for damage, and using quality fuel, can help prevent code P3496 from reappearing.

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