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Engine-Codes – GMC – C0268 GMC

C0268 GMC Code - ABS Pump Motor Circuit Shorted

Quick Answer

The C0268 GMC code indicates that there is a short circuit in the ABS pump motor circuit. Common causes include Damaged wiring in the ABS pump motor circuit, Faulty ABS pump motor, 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
C0268 GMC indicates ABS Pump Motor Circuit Shorted.
Common causes
Common causes include Damaged wiring in the ABS pump motor circuit, Faulty ABS pump motor, 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code C0268 GMC Description

The C0268 GMC code indicates that there is a short circuit in the ABS pump motor circuit. The ABS (Anti-lock Braking System) pump motor is responsible for maintaining the correct pressure in the brake system to prevent wheel lock-up during hard braking. A short circuit in this circuit can disrupt the communication between the ABS control module and the ABS pump motor, potentially leading to issues with the vehicle's braking system.

OBDII Code C0268 GMC - ABS Pump Motor Circuit Shorted
C0268 GMC Code - ABS Pump Motor Circuit Shorted

Common Causes of C0268 GMC

  1. Damaged wiring in the ABS pump motor circuit
  2. Faulty ABS pump motor
  3. Malfunctioning ABS control module
  4. Corrosion in the electrical connections
  5. Electrical short circuit in the ABS pump motor circuit

Symptoms of C0268 GMC

  1. ABS warning light illuminated on the dashboard
  2. Decreased braking performance
  3. ABS system not engaging during hard braking
  4. Unusual noises coming from the ABS pump motor
  5. Dashboard error messages related to the ABS system

How to Fix C0268 GMC

  1. Begin by conducting a thorough inspection of the ABS pump motor circuit, checking for any visible damage to the wiring and connections.
  2. Test the ABS pump motor and ABS control module to determine if either component is faulty and needs to be replaced.
  3. Repair or replace any damaged wiring, connectors, or components in the ABS pump motor circuit.
  4. Clear the diagnostic trouble codes from the ABS system using a scan tool and perform a test drive to ensure the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be necessary to identify the root cause of the short circuit and address it accordingly.

Cost to Fix C0268 GMC

The typical repair costs for addressing a short circuit in the ABS pump motor circuit can vary depending on the extent of the damage and the specific components that need to be replaced. In general, the cost of parts for this repair can range from $200 to $500, while labor costs can add an additional $100 to $300. Overall, the total repair cost for this issue may fall between $300 and $800. It's important to note that these estimates are rough averages, and actual costs may vary based on factors such as the vehicle's make and model, the location of the repair shop, and the extent of the repairs needed. Additionally, diagnostic time and labor rates at auto repair shops can fluctuate, so it's recommended to obtain quotes from multiple shops to find the best price for the repair.

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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 C0268 GMC Code

1. What are the common symptoms of OBDII code C0268 GMC (ABS Pump Motor Circuit Shorted)?

- Common symptoms include the ABS warning light on the dashboard, loss of ABS functionality, and potentially issues with the vehicle's stability control system.

2. What can cause the ABS Pump Motor Circuit to short in a GMC vehicle?

- Possible causes for the ABS Pump Motor Circuit shorting include damaged wiring, a faulty ABS pump motor, a blown fuse, or a malfunctioning ABS control module.

3. How can I diagnose the ABS Pump Motor Circuit short in my GMC vehicle?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the specific trouble code (C0268) and then conducting a thorough inspection of the ABS system components for any visible damage or signs of a short circuit.

4. Is it safe to drive my GMC with OBDII code C0268 indicating an ABS Pump Motor Circuit Shorted?

- It is not recommended to drive the vehicle with this issue as it can compromise the effectiveness of the ABS system, leading to potential safety hazards during braking or emergency maneuvers.

5. What are some repair tips for addressing OBDII code C0268 GMC (ABS Pump Motor Circuit Shorted)?

- Repair tips may include checking and repairing any damaged wiring, replacing the ABS pump motor if necessary, ensuring proper connection of electrical components, and resetting the ABS system after repairs are completed.

6. Can I reset the OBDII code C0268 GMC (ABS Pump Motor Circuit Shorted) without fixing the underlying issue?

- While you can clear the trouble code temporarily, it will likely reappear until the root cause of the ABS Pump Motor Circuit short is identified and repaired.

7. How much does it typically cost to repair OBDII code C0268 GMC (ABS Pump Motor Circuit Shorted)?

- The cost of repair can vary depending on the specific issue causing the short circuit, the labor rates in your area, and whether you choose to address the problem yourself or take it to a professional mechanic.

8. Will fixing OBDII code C0268 GMC (ABS Pump Motor Circuit Shorted) improve my vehicle's overall safety?

- Yes, repairing this issue is essential for maintaining the proper functionality of the ABS system, which plays a crucial role in enhancing vehicle stability and safety during braking.

9. Is OBDII code C0268 GMC (ABS Pump Motor Circuit Shorted) a common problem in GMC vehicles?

- While it may not be as common as some other OBDII codes, issues related to the ABS Pump Motor Circuit can occur in GMC vehicles, especially as they age and components wear out.

10. Can a DIY enthusiast with basic automotive knowledge repair OBDII code C0268 GMC (ABS Pump Motor Circuit Shorted)?

- Depending on the specific cause of the issue, DIY repairs may be possible for those with automotive knowledge and the necessary tools. However, complex electrical problems may require professional intervention.

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