Engine-CodesBuick – C0587 Buick

C0587 Buick Code - Left Rear Solenoid Circuit Low

Quick Answer

The C0587 Buick code indicates a problem with the left rear solenoid circuit being lower than the expected voltage range. Common causes include Wiring harness damage or corrosion, Faulty solenoid, 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
C0587 Buick indicates Left Rear Solenoid Circuit Low.
Common causes
Common causes include Wiring harness damage or corrosion, Faulty solenoid, 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.
Table of contents Created and updated by William Orellana on Sep 29, 2024
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Code C0587 Buick Description

The C0587 Buick code indicates a problem with the left rear solenoid circuit being lower than the expected voltage range. Solenoids are electromechanical devices that control the flow of fluid or air within a system, in this case, likely related to the vehicle's suspension or braking system. When the voltage in the solenoid circuit is too low, it can lead to improper functioning of the corresponding system, potentially affecting the vehicle's performance, handling, and safety.

OBDII Code C0587 Buick - Left Rear Solenoid Circuit Low
C0587 Buick Code - Left Rear Solenoid Circuit Low

Common Causes of C0587 Buick

  1. Wiring harness damage or corrosion
  2. Faulty solenoid
  3. Malfunctioning control module
  4. Poor electrical connection
  5. Water or debris intrusion in the solenoid circuit

Symptoms of C0587 Buick

  1. Rough or bumpy ride
  2. Uneven tire wear
  3. Decreased braking performance
  4. ABS warning light illuminated on the dashboard
  5. Unusual noises coming from the affected wheel

How to Fix C0587 Buick

  1. Begin by conducting a visual inspection of the wiring harness and connections for any signs of damage, corrosion, or loose connections.
  2. Test the solenoid using a multimeter to check for proper voltage and resistance values.
  3. If the solenoid is faulty, replace it with a new one following manufacturer guidelines.
  4. Check the control module for any malfunctions or errors and address them accordingly.
  5. Clear the diagnostic trouble codes from the vehicle's system and test drive to ensure the issue has been resolved.

Cost to Fix C0587 Buick

The typical repair costs for addressing a C0587 Buick code can vary depending on the specific cause of the issue. Parts such as a new solenoid or wiring harness may range from $50 to $200, while labor costs can add an additional $100 to $300. Overall, the total repair cost could fall within the range of $150 to $500. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the rates charged by the auto repair shop. It's recommended to obtain quotes from local shops for a more accurate cost estimate.

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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 C0587 Buick Code

1. What does the OBDII code C0587 mean on a Buick?

Code C0587 indicates a problem with the left rear solenoid circuit, specifically that the voltage is too low.

2. What are the common symptoms of code C0587?

Symptoms may include a warning light on the dashboard, suspension issues like uneven ride height, and decreased vehicle stability.

3. What causes code C0587 on a Buick?

Common causes include a faulty solenoid, damaged wiring or connectors, or a malfunctioning suspension control module.

4. Can a dirty or corroded connector cause code C0587?

Yes, corrosion or dirt on the solenoid circuit connector can disrupt the voltage and trigger this code.

5. How do I diagnose code C0587?

Start by inspecting the wiring and connectors for damage or corrosion, then use a multimeter to check for proper voltage at the solenoid.

6. Does code C0587 affect vehicle performance?

It can affect suspension performance, leading to an uncomfortable ride and potential handling issues, especially on uneven terrain.

7. How can I fix code C0587 on my Buick?

Repairs may involve replacing the left rear solenoid, repairing damaged wiring, or cleaning corroded connectors.

8. Is it safe to drive with code C0587 active?

While the vehicle may still be drivable, suspension issues could affect handling and safety, especially at higher speeds or on rough roads.

9. How much does it cost to repair code C0587?

Repair costs vary depending on the issue, but replacing the solenoid typically costs between $200 and $500, including labor.

10. Can a suspension control module failure cause code C0587?

Yes, a malfunctioning suspension control module can prevent proper voltage regulation and trigger this code.

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