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C0660 Chevrolet Code - Level Control Exhaust Valve Circuit Malfunction

Quick Answer

The C0660 code for Chevrolet vehicles indicates a Level Control Exhaust Valve Circuit Malfunction. Common causes include Wiring issues, such as shorts or breaks in the circuit, Faulty exhaust valve, Malfunctioning control module. 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
C0660 Chevrolet indicates Level Control Exhaust Valve Circuit Malfunction.
Common causes
Common causes include Wiring issues, such as shorts or breaks in the circuit, Faulty exhaust valve, Malfunctioning control module.
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 C0660 Chevrolet Description

The C0660 code for Chevrolet vehicles indicates a Level Control Exhaust Valve Circuit Malfunction. This means that there is a problem with the exhaust valve circuit in the vehicle's level control system. The level control system is responsible for adjusting the ride height of the vehicle to maintain stability and comfort while driving. The exhaust valve plays a crucial role in this system by regulating the flow of air in and out of the suspension components.

OBDII Code C0660 Chevrolet - Level Control Exhaust Valve Circuit Malfunction
C0660 Chevrolet Code - Level Control Exhaust Valve Circuit Malfunction

Common Causes of C0660 Chevrolet

  1. Wiring issues, such as shorts or breaks in the circuit
  2. Faulty exhaust valve
  3. Malfunctioning control module
  4. Sensor issues, such as a faulty level sensor
  5. Corrosion or damage to electrical connections

Symptoms of C0660 Chevrolet

  1. Uneven ride height
  2. Handling problems, such as swaying or drifting
  3. Excessive bouncing or bouncing after hitting bumps
  4. Noticeable sagging of the suspension
  5. Illumination of the check engine light

How to Fix C0660 Chevrolet

  1. Diagnose the specific cause of the circuit malfunction using a diagnostic scanner to retrieve the fault codes and perform a thorough inspection of the level control system.
  2. Check the wiring and electrical connections for any damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test the exhaust valve for proper operation and replace if faulty.
  4. Inspect the control module and sensors for any malfunctions and replace if necessary.
  5. Clear the fault codes, reset the system, and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix C0660 Chevrolet

The typical repair costs for a Level Control Exhaust Valve Circuit Malfunction can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the repair cost for this issue can range from $200 to $500, including parts and labor. It's important to note that the diagnosis time and labor rates at auto repair shops can vary, so it's recommended to check local rates for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops often offer more affordable pricing.

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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 C0660 Chevrolet Code

1. What are common symptoms of OBDII code C0660 in a Chevrolet related to the Level Control Exhaust Valve Circuit Malfunction?

- Common symptoms include the vehicle's suspension system not functioning properly, uneven ride height, and warning lights on the dashboard.

2. What are the possible causes of OBDII code C0660 indicating a Level Control Exhaust Valve Circuit Malfunction in a Chevrolet?

- Possible causes include a faulty exhaust valve, damaged wiring or connectors in the circuit, or issues with the level control module.

3. How can I diagnose OBDII code C0660 in my Chevrolet to pinpoint the issue with the Level Control Exhaust Valve Circuit?

- A thorough inspection of the exhaust valve, circuit wiring, and connectors, as well as using a diagnostic scanner to analyze the code and data, can help diagnose the problem.

4. Is it safe to continue driving my Chevrolet with OBDII code C0660 triggered by a Level Control Exhaust Valve Circuit Malfunction?

- It is not recommended to drive the vehicle extensively with this code active, as it can lead to further damage to the suspension system and affect the vehicle's handling.

5. Can I reset OBDII code C0660 in my Chevrolet indicating a Level Control Exhaust Valve Circuit Malfunction without addressing the underlying issue?

- While you can clear the code temporarily, it is crucial to address the root cause of the problem to prevent it from recurring and potentially causing more significant issues.

6. What are some repair tips for fixing OBDII code C0660 in a Chevrolet related to the Level Control Exhaust Valve Circuit Malfunction?

- Repair tips include checking and repairing any damaged wiring or connectors, testing and potentially replacing the exhaust valve, and ensuring proper functioning of the level control module.

7. How much does it typically cost to repair OBDII code C0660 in a Chevrolet caused by a Level Control Exhaust Valve Circuit Malfunction?

- Repair costs can vary depending on the specific issue, but they may range from a few hundred to over a thousand dollars, including parts and labor.

8. Can a DIY enthusiast with automotive experience fix OBDII code C0660 related to the Level Control Exhaust Valve Circuit Malfunction in a Chevrolet?

- While some DIY enthusiasts may be able to address simple issues like checking and repairing wiring, more complex problems with the exhaust valve or module may require professional assistance.

9. Are there any preventive measures I can take to avoid triggering OBDII code C0660 in my Chevrolet due to a Level Control Exhaust Valve Circuit Malfunction?

- Regularly inspecting the suspension system, addressing any warning signs promptly, and maintaining proper vehicle maintenance can help prevent issues that lead to this code.

10. Will fixing OBDII code C0660 in my Chevrolet improve the overall performance and safety of the vehicle?

- Yes, addressing this code and resolving the underlying issue will help restore the proper functioning of the suspension system, ensuring better performance and safety while driving.

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