AutoCodes – Generic – C0587

C0587 Code - Left Rear Solenoid Circuit Low

Quick Answer

The strut actuator is controlled by the Continuously Variable Road Sensing Suspension (CVRSS) module with a Pulse-Width Modulation (PWM) signal. Common causes include Faulty Left Rear Solenoid, Left Rear Solenoid harness is open or shorted, Left Rear Solenoid circuit poor electrical connection. 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 indicates Left Rear Solenoid Circuit Low.
Common causes: Common causes include Faulty Left Rear Solenoid, Left Rear Solenoid harness is open or shorted, Left Rear Solenoid circuit poor electrical connection.
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.

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Code Popularity 4,035

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 30, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0587 Description

The strut actuator is controlled by the Continuously Variable Road Sensing Suspension (CVRSS) module with a Pulse-Width Modulation (PWM) signal. Switching the voltage ON and OFF at a high frequency, or pulse width modulation of 2.0 kHz, controls the amount of current delivered to the actuator. By controlling the amount of current to the actuator the CVRSS module controls the damping force in the strut. A higher level of damping force is achieved by providing correspondingly higher current levels, relating to higher percentages of PWM duty cycle. The default damper state, no battery voltage is one that provides a minimum damping force. The CVRSS module periodically commands each strut actuator to a preset PWM duty cycle in order to override the normal PWM command. During this preset PWM duty cycle, the CVRSS module is able to perform a diagnostic test on each strut actuator to determine if a malfunction is present. The preset PWM command can be either an OFF or ON state duty cycle.

OBDII Code C0587 - Left Rear Solenoid Circuit Low - AutoCodes.com — C0587 Code - Left Rear Solenoid Circuit Low

What does this mean?

What are the Possible Causes of the DTC C0587?

Faulty Left Rear Solenoid
Left Rear Solenoid harness is open or shorted
Left Rear Solenoid circuit poor electrical connection

How to Fix the DTC C0587?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0587 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the C0587 code?

Need more information on how to fix the C0587 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0587 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C0587 Buick — Left Rear Solenoid Circuit Low
C0587 Cadillac — Left Rear Solenoid Circuit Low
C0587 Chevrolet — Left Rear Solenoid Circuit Low
C0587 GMC — Left Rear Solenoid Circuit Low

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 Code

1. What does the OBDII code C0587 mean?

C0587 indicates a "Left Rear Solenoid Circuit Low," meaning there is an issue with the electrical circuit controlling the left rear solenoid in the suspension system.

2. What are the symptoms of the C0587 code?

Common symptoms include a warning light on the dashboard, poor ride quality, uneven suspension height, or noticeable sagging in the left rear of the vehicle.

3. What causes the C0587 code to appear?

The code can be triggered by damaged wiring or connectors, a faulty left rear suspension solenoid, a malfunctioning control module, or low voltage in the circuit.

4. How do you diagnose the C0587 code?

Diagnosis typically involves checking the wiring and connectors for damage, testing the left rear solenoid for proper operation, and verifying circuit voltage and resistance.

5. Can I drive with the C0587 code?

You can drive with this code, but it may cause reduced suspension performance, leading to an uncomfortable or unsafe driving experience. Prompt repairs are recommended.

6. How do you fix the C0587 code?

Repairs may include replacing a damaged solenoid, repairing or replacing faulty wiring, cleaning corroded connectors, or updating/replacing the control module if necessary.

7. How much does it cost to fix the C0587 code?

Repair costs can vary but typically range from $100 to $500, depending on whether the solenoid, wiring, or control module needs to be replaced.

8. Can a low battery cause the C0587 code?

Yes, a low or weak battery can cause insufficient voltage to the solenoid circuit, potentially triggering this code.

9. Is the C0587 code specific to certain vehicles?

While this code is common in vehicles with advanced suspension systems, it is not specific to a single make or model. Check your vehicle's manual for details.

10. Do I need special tools to fix the C0587 code?

Yes, diagnosing and repairing this code may require an OBDII scanner, a multimeter, and possibly manufacturer-specific diagnostic tools for advanced testing.