AutoCodes – GMC – C0588 GMC

C0588 GMC Code - Left Rear Solenoid Circuit High

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: C0588 GMC indicates Left Rear Solenoid Circuit High.
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 803

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 29, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0588 GMC 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 C0588 GMC - Left Rear Solenoid Circuit High - AutoCodes.com — C0588 GMC Code - Left Rear Solenoid Circuit High

What does this mean?

What are the Possible Causes of the DTC C0588 GMC?

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

How to Fix the DTC C0588 GMC?

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 C0588 GMC 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 C0588 GMC code?

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Need Help with the Code?

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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 C0588 GMC Code

1. What are the common symptoms of OBDII code C0588 GMC (Left Rear Solenoid Circuit High)?

The common symptoms include issues with the left rear brake system, such as poor brake performance, brake dragging, or the ABS warning light illuminating on the dashboard.

2. What can cause the OBDII code C0588 GMC to trigger?

The code C0588 GMC is typically triggered by a malfunction in the left rear solenoid circuit, which can be caused by wiring issues, a faulty solenoid, or a problem with the ABS module.

3. How can I diagnose the cause of OBDII code C0588 GMC?

Diagnosing the code usually involves inspecting the wiring harness for damage, testing the left rear solenoid, and checking the ABS module for any faults using a scan tool.

4. Is it safe to drive with OBDII code C0588 GMC active?

It is not recommended to drive with the code C0588 GMC active, as it can affect the performance of the left rear brake system and compromise vehicle safety.

5. How can I repair OBDII code C0588 GMC (Left Rear Solenoid Circuit High)?

Repairing the code may involve repairing or replacing damaged wiring, replacing the left rear solenoid if faulty, or addressing any issues with the ABS module.

6. Can I reset the OBDII code C0588 GMC without fixing the underlying issue?

Resetting the code without fixing the underlying issue will only temporarily clear the code, as it is likely to reappear once the system detects the same fault again.

7. Are there any common mistakes to avoid when dealing with OBDII code C0588 GMC?

Common mistakes to avoid include overlooking wiring issues, misdiagnosing the problem as a solenoid failure without checking the wiring, or ignoring other potential causes like ABS module faults.

8. Will OBDII code C0588 GMC affect the vehicle's braking system?

Yes, OBDII code C0588 GMC can affect the vehicle's braking system, particularly the performance of the left rear brake and the functionality of the ABS system.

9. How long does it typically take to repair OBDII code C0588 GMC?

The time needed to repair the code can vary depending on the specific cause of the issue, but it may take a few hours to a full day to diagnose and fix the problem.

10. Can a DIY enthusiast repair OBDII code C0588 GMC, or is it best left to professionals?

While some DIY enthusiasts with advanced automotive repair skills may be able to diagnose and fix the issue, it is recommended to consult a professional mechanic for proper diagnosis and repair of OBDII code C0588 GMC to ensure safety and accuracy.