AutoCodes – GMC – C0090 GMC

C0090 GMC Code - Right Rear ABS Solenoid 1 Circuit Malfunction

Quick Answer

The inlet and outlet valve solenoid circuits are supplied with battery power when the ignition is in the ON position. Common causes include Faulty Right Rear ABS Solenoid 1, Right Rear ABS Solenoid 1 harness is open or shorted, Right Rear ABS Solenoid 1 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: C0090 GMC indicates Right Rear ABS Solenoid 1 Circuit Malfunction.
Common causes: Common causes include Faulty Right Rear ABS Solenoid 1, Right Rear ABS Solenoid 1 harness is open or shorted, Right Rear ABS Solenoid 1 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 1,219

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 May 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0090 GMC Description

The inlet and outlet valve solenoid circuits are supplied with battery power when the ignition is in the ON position. The electronic brake control module (EBCM) controls the valve functions by grounding the circuit when necessary

OBDII Code C0090 GMC - Right Rear ABS Solenoid 1 Circuit Malfunction - AutoCodes.com — C0090 GMC Code - Right Rear ABS Solenoid 1 Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC C0090 GMC?

Faulty Right Rear ABS Solenoid 1
Right Rear ABS Solenoid 1 harness is open or shorted
Right Rear ABS Solenoid 1 circuit poor electrical connection

How to Fix the DTC C0090 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 C0090 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.

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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.