AutoCodes – Generic – C1265

C1265 Code - Left Rear 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: C1265 indicates Left Rear 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 15,911

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 C1265 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 C1265 - Left Rear Inlet Valve Solenoid Malfunction - AutoCodes.com — C1265 Code - Left Rear Inlet Valve Solenoid Malfunction

What does this mean?

What are the Possible Causes of the DTC C1265?

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 C1265?

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 C1265 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 C1265 code?

Need more information on how to fix the C1265 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1265 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1265 Buick — Left Rear Inlet Valve Solenoid Malfunction
C1265 Cadillac — Left Rear Inlet Valve Solenoid Malfunction
C1265 Chevrolet — Left Rear Inlet Valve Solenoid Malfunction
C1265 GMC — Left Rear 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 C1265 Code

1. What are the common symptoms of OBDII code C1265 (Left Rear Inlet Valve Solenoid Malfunction)?

- Common symptoms include the ABS light being illuminated on the dashboard, potential loss of ABS functionality, and possible changes in braking performance.

2. What can cause the OBDII code C1265 to trigger?

- The code C1265 may be triggered by a faulty left rear inlet valve solenoid, wiring issues, a failed ABS pump, or low brake fluid levels.

3. How can I diagnose the cause of OBDII code C1265?

- Diagnosis typically involves using a diagnostic scanner to retrieve the code, checking the condition of the left rear inlet valve solenoid, inspecting wiring for damage, and testing the ABS system.

4. Is it safe to drive with OBDII code C1265 present?

- It is generally not recommended to drive with code C1265 present as it may affect the proper functioning of the ABS system, potentially compromising braking performance in certain situations.

5. Can I repair OBDII code C1265 on my own?

- Repairing code C1265 often requires specialized knowledge and tools. It is recommended to seek assistance from a qualified mechanic or technician for proper diagnosis and repair.

6. How much does it typically cost to repair OBDII code C1265?

- The cost of repairing code C1265 can vary depending on the underlying cause. Costs may include parts replacement, labor fees, and diagnostic charges, which can range from a few hundred to over a thousand dollars.

7. Are there any DIY tips for addressing OBDII code C1265?

- DIY tips for code C1265 may include checking and cleaning electrical connections, inspecting for visible damage to wiring, and ensuring proper brake fluid levels before seeking professional assistance.

8. Can a left rear inlet valve solenoid malfunction be prevented?

- Preventive maintenance, such as regular brake system inspections and fluid checks, can help prevent issues that may lead to a left rear inlet valve solenoid malfunction triggering code C1265.

9. Will resetting the OBDII code C1265 clear the issue?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing code C1265. It is crucial to address the root cause to prevent the issue from reoccurring.

10. How long does it take to repair OBDII code C1265?

- The repair time for code C1265 can vary depending on the specific cause and complexity of the repair. It may take a few hours to a full day for a mechanic to diagnose and fix the issue.