AutoCodes – GMC – C1267 GMC

C1267 GMC Code - Right 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: C1267 GMC indicates Right 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 9,812

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 C1267 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 C1267 GMC - Right Rear Inlet Valve Solenoid Malfunction - AutoCodes.com — C1267 GMC Code - Right Rear Inlet Valve Solenoid Malfunction

What does this mean?

What are the Possible Causes of the DTC C1267 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 C1267 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 C1267 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.

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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 C1267 GMC Code

1. What does the OBDII code C1267 mean on a GMC vehicle?

C1267 indicates a malfunction in the right rear inlet valve solenoid, which is part of the ABS system responsible for controlling brake pressure.

2. What are the common symptoms of code C1267 on a GMC?

Common symptoms include the ABS warning light being illuminated, reduced braking performance, and possible issues with traction control or stability systems.

3. What causes the C1267 code on a GMC vehicle?

The most common causes include a faulty right rear inlet valve solenoid, damaged wiring or connectors to the solenoid, or issues with the ABS control module.

4. Can I drive my GMC with the C1267 code?

While the vehicle may still be drivable, the ABS system may not function properly, increasing the risk of skidding or losing control during hard braking or slippery conditions.

5. How is the C1267 code diagnosed?

A mechanic will use an OBDII scanner to confirm the code, visually inspect the solenoid and wiring, and test the ABS system components for faults.

6. How do you fix the C1267 code on a GMC?

Possible fixes include replacing the faulty right rear inlet valve solenoid, repairing damaged wiring or connectors, or reprogramming or replacing the ABS control module if necessary.

7. How much does it cost to repair the C1267 code on a GMC vehicle?

Costs can vary depending on the issue, but replacing the solenoid typically ranges from $200 to $500, including parts and labor.

8. Can a bad ABS sensor cause the C1267 code?

No, the C1267 code specifically relates to the right rear inlet valve solenoid, not the ABS wheel speed sensors.

9. Does the C1267 code mean the ABS system has completely failed?

Not necessarily. The code indicates an issue with the solenoid, but other parts of the ABS system may still function. However, full functionality may be compromised.

10. Can clearing the C1267 code fix the problem?

Clearing the code may turn off the warning light temporarily, but the underlying issue with the solenoid must be addressed to prevent the code from returning.