AutoCodes – GMC – C1263 GMC

C1263 GMC Code - Right Front Inlet 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: C1263 GMC indicates Right Front Inlet 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,215

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code C1263 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 C1263 GMC - Right Front Inlet Valve Solenoid Malfunction - AutoCodes.com — C1263 GMC Code - Right Front Inlet Valve Solenoid Malfunction

What does this mean?

What are the Possible Causes of the DTC C1263 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 C1263 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 C1263 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 C1263 GMC code?

Need more information on how to fix the C1263 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1263 GMC code diagnosed by a professional: Find a repair shop in your area

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 C1263 GMC Code

1. What are the common symptoms of OBDII code C1263 GMC (Right Front Inlet Valve Solenoid Malfunction)?

The common symptoms include ABS warning light illuminated on the dashboard, loss of ABS functionality, and potential issues with brake performance.

2. What are the possible causes of OBDII code C1263 GMC?

The code C1263 typically indicates a malfunction in the right front inlet valve solenoid of the ABS system. Common causes include a faulty solenoid, damaged wiring or connectors, or issues with the ABS control module.

3. How can I diagnose the OBDII code C1263 GMC?

Diagnosis typically involves using a professional OBDII scanner to read the code, inspecting the right front inlet valve solenoid and its connections for any visible damage, and performing a thorough ABS system test.

4. Can I drive my vehicle with OBDII code C1263 GMC present?

It is not recommended to drive your vehicle with the ABS warning light on, as it indicates a potential issue with the anti-lock braking system. It's best to address the problem promptly to ensure safe operation of the vehicle.

5. How can I repair OBDII code C1263 GMC at home?

Repairing code C1263 often involves replacing the right front inlet valve solenoid, checking and repairing any damaged wiring or connectors, and clearing the code with an OBDII scanner.

6. Is it necessary to visit a mechanic for OBDII code C1263 GMC?

While some DIY enthusiasts may be able to address the issue at home, it is recommended to visit a qualified mechanic or dealership for proper diagnosis and repair of ABS system malfunctions like code C1263.

7. How much does it cost to repair OBDII code C1263 GMC?

The cost of repairing code C1263 can vary depending on the specific cause of the issue, the labor rates in your area, and whether you choose OEM or aftermarket parts. It's best to get a few quotes from different mechanics to compare prices.

8. Will OBDII code C1263 GMC affect my vehicle's overall performance?

While code C1263 specifically relates to the right front inlet valve solenoid malfunction, it can impact the overall performance and safety of your vehicle by potentially affecting the ABS system's functionality.

9. Can OBDII code C1263 GMC trigger other fault codes?

In some cases, a malfunction in the ABS system, indicated by code C1263, can trigger other related fault codes. It's important to address all stored fault codes to ensure the proper functioning of the ABS system.

10. How can I prevent OBDII code C1263 GMC from recurring?

Regular maintenance of the ABS system, including checking and cleaning connections, monitoring brake fluid levels, and addressing any warning lights promptly, can help prevent the recurrence of code C1263 GMC.