AutoCodes – Buick – C1265 Buick

C1265 Buick 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 Buick 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 1,215
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 C1265 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 C1265 Buick - Left Rear Inlet Valve Solenoid Malfunction - AutoCodes.com
C1265 Buick Code - Left Rear Inlet Valve Solenoid Malfunction

What are the Possible Causes of the DTC C1265 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 C1265 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 C1265 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 C1265 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 C1265 Buick Code

What does the OBDII code C1265 mean for a Buick?

C1265 indicates a malfunction in the left rear inlet valve solenoid, which is part of the ABS (anti-lock braking system).

What are the common symptoms of code C1265 in a Buick?

Symptoms may include the ABS warning light turning on, reduced braking performance, and possible loss of ABS functionality.

What causes code C1265 in a Buick?

Common causes include a faulty solenoid, wiring issues, corroded connectors, or a malfunctioning ABS module.

Can code C1265 affect regular braking in a Buick?

Typically, regular braking remains functional, but the ABS system may not work, reducing braking stability in slippery conditions.

How is code C1265 diagnosed in a Buick?

Technicians use an OBDII scanner to confirm the code and may inspect wiring, connectors, and the ABS solenoid for faults.

How can I fix code C1265 in my Buick?

Repairs may involve replacing the left rear inlet valve solenoid, repairing damaged wiring, or addressing issues within the ABS module.

Is it safe to drive with code C1265 active in a Buick?

Driving is possible, but without ABS functionality, braking performance in emergency or slippery situations may be compromised.

How much does it cost to repair code C1265 in a Buick?

Costs vary but may range from $200 to $600, depending on whether the solenoid, wiring, or ABS module needs replacement.

Can I clear code C1265 without fixing the issue?

Clearing the code without addressing the underlying problem will likely result in the code returning and continued ABS system issues.

What tools are needed to fix code C1265 in a Buick?

A diagnostic OBDII scanner, multimeter, and basic automotive tools are typically needed to diagnose and fix this issue.

Discuss the causes and fixes for C1265 Buick OBDII Code

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