AutoCodes – Buick – C1268 Buick

C1268 Buick Code - Right Rear Outlet Valve Solenoid Malfunction

Quick Answer

The system relay is energized when the ignition is ON. Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module (EBCM) harness is open or shorted, Electronic Brake Control Module (EBCM) 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
C1268 Buick indicates Right Rear Outlet Valve Solenoid Malfunction.
Common causes
Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module (EBCM) harness is open or shorted, Electronic Brake Control Module (EBCM) 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 934
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 31, 2020
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Code C1268 Buick Description

The system relay is energized when the ignition is ON. The system relay supplies voltage to the valve solenoids and the pump motor. This voltage is referred to as the system voltage. The Electronic Brake Control Module (EBCM) microprocessor activates the valve solenoids by grounding the control circuit. The Solenoid Valve circuit is internal to the EBCM. The EBCM sets the OBDII code when the commanded state of the driver and the actual state of the control circuit do not match.
OBDII Code C1268 Buick - Right Rear Outlet Valve Solenoid Malfunction - AutoCodes.com
C1268 Buick Code - Right Rear Outlet Valve Solenoid Malfunction

What are the Possible Causes of the DTC C1268 Buick?

  • Faulty Electronic Brake Control Module (EBCM)
  • Electronic Brake Control Module (EBCM) harness is open or shorted
  • Electronic Brake Control Module (EBCM) circuit poor electrical connection

How to Fix the DTC C1268 Buick?

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 C1268 Buick 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 C1268 Buick 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 C1268 Buick Code

1. What does the OBDII code C1268 on a Buick mean?

The C1268 code indicates a malfunction in the right rear outlet valve solenoid, which is part of the ABS (Anti-lock Braking System).

2. What are the common symptoms of the C1268 code?

Symptoms may include the ABS warning light being illuminated, reduced braking performance, or the ABS system not functioning properly.

3. What causes the C1268 code to appear?

Common causes include a faulty right rear outlet valve solenoid, damaged wiring or connectors, or issues with the ABS control module.

4. Can I still drive my Buick with the C1268 code?

While the vehicle may still be drivable, the ABS system may not function correctly, increasing the risk of skidding or losing control during hard braking.

5. How do I diagnose the C1268 code?

Diagnosis involves using an OBDII scanner to confirm the code, inspecting the wiring and connectors for damage, and testing the right rear outlet valve solenoid for proper operation.

6. How is the C1268 code fixed?

Repairs may include replacing the faulty right rear outlet valve solenoid, repairing damaged wiring or connectors, or reprogramming or replacing the ABS control module.

7. How much does it cost to fix the C1268 code on a Buick?

Repair costs can vary, but replacing the solenoid typically ranges from $150 to $400, depending on labor rates and parts prices.

8. Can a low brake fluid level cause the C1268 code?

While low brake fluid is not a direct cause, it can affect ABS performance and should be checked as part of the diagnosis.

9. Does the C1268 code automatically clear after the repair?

No, the code must be cleared using an OBDII scanner after the repair is completed and the issue is resolved.

10. Can a generic OBDII scanner read the C1268 code?

Some generic scanners can read C1268, but a more advanced scanner capable of accessing ABS-specific codes may be required for accurate diagnosis.

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