AutoCodes – Generic – C1263

C1263 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 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.

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Code Popularity 9,006

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

What does this mean?

What are the Possible Causes of the DTC C1263?

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?

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 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 code?

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

Need Help with the Code?

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

Information for Specific Makes

C1263 Buick — Right Front Inlet Valve Solenoid Malfunction
C1263 Cadillac — Right Front Inlet Valve Solenoid Malfunction
C1263 Chevrolet — Right Front Inlet Valve Solenoid Malfunction
C1263 GMC — Right Front Inlet Valve Solenoid Malfunction

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 Code

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

The common symptoms of this code may include issues with brake pedal feel, brake performance, and the activation of the ABS system.

2. What can cause the OBDII code C1263 to trigger?

This code is typically triggered by a malfunction in the right front inlet valve solenoid of the ABS system. This could be due to a faulty solenoid, wiring issues, or a problem with the ABS control module.

3. How serious is OBDII code C1263, and is it safe to continue driving with this issue?

While the severity may vary, it is generally not recommended to drive with this code present. It can affect the proper functioning of the ABS system, potentially compromising braking performance and safety.

4. What are some possible repair options for OBDII code C1263?

Repair options may include inspecting and replacing the right front inlet valve solenoid, checking and repairing any damaged wiring, and diagnosing the ABS control module for faults.

5. Can I reset the OBDII code C1263 on my own, or do I need a professional mechanic?

You can attempt to clear the code using an OBDII scanner, but it is essential to address the underlying issue causing the code to prevent it from reoccurring. If you are not familiar with ABS systems, it is advisable to seek the help of a professional mechanic.

6. How can I prevent OBDII code C1263 from happening again in the future?

Regular maintenance of the ABS system, including checking for any signs of wear or damage, can help prevent this code from reoccurring. Addressing any issues promptly can also help maintain the system's functionality.

7. Are there any DIY tips for troubleshooting OBDII code C1263 before seeking professional help?

You can visually inspect the right front inlet valve solenoid and its wiring for any obvious signs of damage. However, diagnosing the specific cause of the malfunction may require specialized tools and expertise.

8. What are the potential risks of ignoring OBDII code C1263, Right Front Inlet Valve Solenoid Malfunction?

Ignoring this code can lead to compromised ABS system performance, which can impact vehicle stability and braking efficiency, especially in emergency situations. It is crucial to address this issue promptly.

9. How long does it typically take to repair OBDII code C1263?

The repair time for this code can vary depending on the exact cause of the malfunction. It could range from a quick solenoid replacement to more in-depth diagnostics and repairs involving the ABS system components.

10. Is it possible for OBDII code C1263 to cause other related issues in the vehicle?

While the code itself relates to the right front inlet valve solenoid malfunction, unresolved ABS system problems can potentially lead to further issues with the vehicle's braking system and overall safety.