Engine-CodesCadillac – C0658 Cadillac

C0658 Cadillac Code - Level Control Compressor Circuit High

Quick Answer

The C0658 Cadillac code indicates a problem with the Level Control Compressor Circuit being too high. Common causes include Faulty level control compressor, Electrical issues such as a blown fuse or wiring problem, Leaking air lines or fittings. 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
C0658 Cadillac indicates Level Control Compressor Circuit High.
Common causes
Common causes include Faulty level control compressor, Electrical issues such as a blown fuse or wiring problem, Leaking air lines or fittings.
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 Aug 30, 2024
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Code C0658 Cadillac Description

The C0658 Cadillac code indicates a problem with the Level Control Compressor Circuit being too high. This system is responsible for maintaining the vehicle's ride height by adjusting the air pressure in the suspension. When this circuit is reading high, it means that there is an issue with the compressor or its components, which could lead to an unstable ride, poor handling, and potential damage to other suspension components.

OBDII Code C0658 Cadillac - Level Control Compressor Circuit High
C0658 Cadillac Code - Level Control Compressor Circuit High

Common Causes of C0658 Cadillac

  1. Faulty level control compressor
  2. Electrical issues such as a blown fuse or wiring problem
  3. Leaking air lines or fittings
  4. Malfunctioning suspension sensors
  5. Issues with the suspension control module

Symptoms of C0658 Cadillac

  1. Abnormal ride height (either too high or too low)
  2. Harsh or bumpy ride
  3. Suspension bottoming out
  4. Unusual noises coming from the suspension
  5. Dashboard warning light related to suspension system

How to Fix C0658 Cadillac

  1. Begin by inspecting the level control compressor and associated components for any visible damage or leaks.
  2. Check the electrical connections, fuses, and wiring related to the compressor circuit.
  3. Test the suspension sensors and control module for proper functioning.
  4. Replace any faulty components identified during the inspection.
  5. Clear the diagnostic trouble codes and recalibrate the suspension system as needed.

Cost to Fix C0658 Cadillac

The cost of repairing a Level Control Compressor Circuit High issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, you can expect to pay anywhere from $200 to $600 for parts and labor. Keep in mind that this is just an estimate, and actual costs may be higher or lower based on your location and vehicle. It's recommended to get a detailed quote from a trusted auto repair shop before proceeding with the repair.

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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 C0658 Cadillac Code

1. What are common symptoms of OBDII code C0658 in a Cadillac related to the Level Control Compressor Circuit High?

- Common symptoms include the compressor running constantly, uneven ride height, and illuminated warning lights on the dashboard.

2. What are some possible causes of OBDII code C0658 in a Cadillac?

- Possible causes include a faulty level control compressor, damaged wiring or connectors, a failed compressor relay, or a problem with the compressor control module.

3. How can I diagnose the cause of OBDII code C0658 in my Cadillac?

- You can diagnose the issue by checking the compressor operation, inspecting the wiring and connectors for damage, testing the compressor relay, and scanning the compressor control module for fault codes.

4. Can I continue driving my Cadillac with OBDII code C0658 present?

- It is not recommended to drive your Cadillac with this code active, as it can affect the vehicle's ride quality and suspension performance.

5. How can I repair OBDII code C0658 in my Cadillac?

- Repairs may involve replacing the level control compressor, repairing damaged wiring or connectors, replacing the compressor relay, or reprogramming the compressor control module.

6. Is it possible to reset OBDII code C0658 in my Cadillac without fixing the underlying issue?

- While you can clear the code temporarily, it will likely return until the root cause is addressed.

7. Are there any common mistakes to avoid when dealing with OBDII code C0658 in a Cadillac?

- Avoid overlooking simple issues like loose connections or damaged wiring when diagnosing this code, as they can often be the cause.

8. How much does it typically cost to repair OBDII code C0658 in a Cadillac?

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

9. Can a DIY enthusiast fix OBDII code C0658 in a Cadillac, or is it best left to professional mechanics?

- While some DIYers may be able to address simple causes like loose connections, more complex issues may require professional expertise to diagnose and repair effectively.

10. How often does OBDII code C0658 occur in Cadillac vehicles, and is it a common issue?

- This code is relatively common in Cadillac vehicles equipped with a level control compressor system, especially in models with advanced suspension features.

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