Engine-CodesGMC – C0090 GMC

C0090 GMC Code - Right Rear ABS Solenoid 1 Circuit Malfunction

Quick Answer

The C0090 GMC code indicates a malfunction in the right rear ABS solenoid 1 circuit of the vehicle. Common causes include Damaged or corroded wiring in the ABS solenoid circuit, Faulty ABS solenoid valve in the right rear wheel, Malfunctioning ABS 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
C0090 GMC indicates Right Rear ABS Solenoid 1 Circuit Malfunction.
Common causes
Common causes include Damaged or corroded wiring in the ABS solenoid circuit, Faulty ABS solenoid valve in the right rear wheel, Malfunctioning ABS 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 11, 2024
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Code C0090 GMC Description

The C0090 GMC code indicates a malfunction in the right rear ABS solenoid 1 circuit of the vehicle. The ABS (Anti-Lock Braking System) solenoid is a crucial component of the ABS system, responsible for regulating the brake pressure in the right rear wheel to prevent it from locking up during braking. When this solenoid circuit malfunctions, it can lead to issues with the ABS system, affecting the vehicle's braking performance and overall safety.

OBDII Code C0090 GMC - Right Rear ABS Solenoid 1 Circuit Malfunction
C0090 GMC Code - Right Rear ABS Solenoid 1 Circuit Malfunction

Common Causes of C0090 GMC

  1. Damaged or corroded wiring in the ABS solenoid circuit
  2. Faulty ABS solenoid valve in the right rear wheel
  3. Malfunctioning ABS control module
  4. Low brake fluid levels or contaminated brake fluid
  5. Electrical issues such as blown fuses or relays in the ABS system

Symptoms of C0090 GMC

  1. Illuminated ABS warning light on the dashboard
  2. Increased stopping distance when applying brakes
  3. Brake pedal feels spongy or unresponsive
  4. ABS system engages unnecessarily or fails to engage during braking
  5. Vehicle pulls to one side during braking

How to Fix C0090 GMC

  1. Begin by diagnosing the ABS system using a professional diagnostic tool to pinpoint the exact cause of the malfunction.
  2. Inspect the wiring harness and connectors for any signs of damage or corrosion, repairing or replacing as necessary.
  3. Test the ABS solenoid valve in the right rear wheel to ensure it is functioning properly, replacing if defective.
  4. Check the ABS control module for any faults or errors, resetting or replacing if needed.
  5. Bleed the brake system to ensure proper function and clear any air bubbles that may have entered during repairs.

Cost to Fix C0090 GMC

The cost of repairing a right rear ABS solenoid 1 circuit malfunction can vary depending on the extent of the issue, the specific parts needed, and the labor rates at the auto repair shop. On average, the repair costs for this type of ABS system issue can range from $200 to $500, including parts and labor. Keep in mind that diagnostic time and labor rates can fluctuate based on location, vehicle make and model, and the expertise of the technician. It's recommended to obtain quotes from multiple auto repair shops to compare prices and find the best deal for your specific situation.

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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 C0090 GMC Code

1. What are the common symptoms of OBDII code C0090 GMC?

The common symptoms of code C0090 GMC include the ABS warning light illuminated on the dashboard, poor braking performance, and potential traction control issues.

2. What are the possible causes of the Right Rear ABS Solenoid 1 Circuit Malfunction code?

The code C0090 indicates a malfunction in the right rear ABS solenoid 1 circuit. Possible causes include a faulty ABS solenoid, damaged wiring or connectors, or a problem with the ABS control module.

3. How can I diagnose the cause of OBDII code C0090 GMC?

Diagnosing the cause of code C0090 involves conducting a visual inspection of the ABS system components, checking the wiring and connectors for damage, and using a scan tool to retrieve further diagnostic trouble codes and data.

4. Can I still drive my vehicle with OBDII code C0090 GMC?

It is not recommended to drive your vehicle with code C0090 present, as it can affect the proper functioning of the ABS system, leading to potential safety issues. It is advised to address the issue promptly.

5. How can I repair OBDII code C0090 GMC?

Repairing code C0090 involves first identifying the specific cause of the malfunction, which may require replacing the right rear ABS solenoid, repairing damaged wiring or connectors, or addressing issues with the ABS control module.

6. Is it safe to continue driving if the ABS warning light is on due to code C0090?

Driving with the ABS warning light on is not ideal, as it indicates a malfunction in the ABS system, which can compromise braking performance and overall safety. It is recommended to address the issue as soon as possible.

7. Can a DIY enthusiast fix OBDII code C0090 GMC?

Depending on your level of automotive expertise, you may be able to address code C0090 yourself by following repair guides or tutorials. However, complex electrical issues may require professional diagnosis and repair.

8. How much does it typically cost to repair OBDII code C0090 GMC?

The cost of repairing code C0090 can vary depending on the specific cause of the issue, labor rates in your area, and the parts needed for repair. It is recommended to obtain quotes from local mechanics for an accurate estimate.

9. Will resetting the OBDII code C0090 GMC make the issue go away?

Resetting the code may temporarily turn off the warning light, but it will not fix the underlying issue causing code C0090. It is essential to diagnose and repair the problem to prevent further complications.

10. How can I prevent OBDII code C0090 GMC from recurring in the future?

To prevent code C0090 from recurring, it is essential to perform regular maintenance on the ABS system, including checking for damaged wiring, ensuring proper connections, and addressing any warning lights promptly. Regular inspections can help catch potential issues early.

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