AutoCodes – GMC – C1264 GMC

C1264 GMC Code - Right Front 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: C1264 GMC indicates Right Front 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 1,027

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 Aug 31, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1264 GMC 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 C1264 GMC - Right Front Outlet Valve Solenoid Malfunction - AutoCodes.com — C1264 GMC Code - Right Front Outlet Valve Solenoid Malfunction

What does this mean?

What are the Possible Causes of the DTC C1264 GMC?

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 C1264 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 C1264 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 C1264 GMC 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 C1264 GMC Code

1. What are the common symptoms of OBDII code C1264 GMC?

The common symptoms of code C1264 GMC include the ABS warning light coming on, potential loss of ABS functionality, and issues with braking performance.

2. What causes the Right Front Outlet Valve Solenoid malfunction (C1264) in a GMC vehicle?

The most common causes of the C1264 code in a GMC vehicle are a faulty right front outlet valve solenoid, wiring issues, or a problem with the ABS control module.

3. How can I diagnose the Right Front Outlet Valve Solenoid malfunction (C1264) in my GMC?

Diagnosing the C1264 code involves using a scan tool to retrieve the code, checking the wiring and connections to the right front outlet valve solenoid, and testing the solenoid itself for proper operation.

4. Can I still drive my GMC with the C1264 code present?

It is not recommended to drive your GMC with the C1264 code present, as it can affect the ABS system and compromise your vehicle's braking performance and safety.

5. How do I repair the Right Front Outlet Valve Solenoid malfunction (C1264) in my GMC?

Repairing the C1264 code typically involves replacing the faulty right front outlet valve solenoid, addressing any wiring issues, and clearing the code with a scan tool.

6. Are there any DIY tips for fixing the C1264 code in a GMC?

While some may attempt to replace the right front outlet valve solenoid themselves, it is recommended to have this repair done by a qualified mechanic to ensure proper installation and functioning of the ABS system.

7. How much does it cost to repair the C1264 code in a GMC?

The cost of repairing the C1264 code in a GMC can vary depending on the extent of the issue, parts needed, and labor costs. It is advisable to obtain quotes from different repair shops.

8. Can a faulty ABS control module cause the C1264 code in a GMC?

Yes, a faulty ABS control module can potentially trigger the C1264 code in a GMC by affecting the operation of the right front outlet valve solenoid.

9. Will the C1264 code reset on its own after repair?

After repairing the issue causing the C1264 code, it is recommended to use a scan tool to clear the code from the vehicle's system to reset the ABS warning light.

10. Is it safe to ignore the C1264 code in my GMC?

Ignoring the C1264 code can result in compromised ABS functionality, affecting your vehicle's braking performance and safety. It is best to address the issue promptly to ensure proper operation of the ABS system.