AutoCodes – Chevrolet – C0274 2016 Chevrolet Silverado

C0274 2016 Chevrolet Silverado Code - Isolation Valve High Temperature

Quick Answer

The solenoid valves are integral parts of the brake pressure modulator. Common causes include Faulty Electronic Brake Control Module (EBCM) with Brake Pressure Modulator Valve (BPMV), Brake Pressure Modulator Valve harness is open or shorted, Brake Pressure Modulator Valve 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: C0274 2016 Chevrolet Silverado indicates Isolation Valve High Temperature.
Common causes: Common causes include Faulty Electronic Brake Control Module (EBCM) with Brake Pressure Modulator Valve (BPMV), Brake Pressure Modulator Valve harness is open or shorted, Brake Pressure Modulator Valve 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 226

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 Jul 05, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C0274 2016 Chevrolet Silverado Description

The solenoid valves are integral parts of the brake pressure modulator. The brake pressure modulator contains an isolation solenoid valve and a dump solenoid valve for each wheel. A traction/stability control supply solenoid valve and an isolation solenoid valve for each brake circuit. The solenoid valves are not engaged during normal system operation. When the ABS, the traction control, or the stability control operation is required the Electronic Brake Control Module (EBCM) turns the required solenoid ON. The Diagnostic Trouble Code (DTC) will be set due to the extended operation of the ABS, the traction control, or the stability control.

OBDII Code C0274 2016 Chevrolet Silverado - Isolation Valve High Temperature - AutoCodes.com — C0274 2016 Chevrolet Silverado Code - Isolation Valve High Temperature

What does this mean?

What are the Possible Causes of the DTC C0274 2016 Chevrolet Silverado?

Faulty Electronic Brake Control Module (EBCM) with Brake Pressure Modulator Valve (BPMV)
Brake Pressure Modulator Valve harness is open or shorted
Brake Pressure Modulator Valve circuit poor electrical connection

How to Fix the DTC C0274 2016 Chevrolet Silverado?

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 does this mean?

Code Tech Notes

If the C0274 code is combined with other codes, fix other codes first.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0274 2016 Chevrolet Silverado 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 C0274 2016 Chevrolet Silverado code?

Need more information on how to fix the C0274 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0274 2016 Chevrolet Silverado 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 C0274 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code C0274 in a 2016 Chevrolet Silverado?

The common symptoms include the check engine light illuminating, decreased fuel efficiency, and possible issues with the vehicle's braking system.

2. What does the OBDII code C0274 "Isolation Valve High Temperature" mean in a 2016 Chevrolet Silverado?

This code indicates that the isolation valve in the vehicle's brake system is experiencing high temperatures.

3. What are the possible causes of OBDII code C0274 in a 2016 Chevrolet Silverado?

Possible causes include a malfunctioning isolation valve, wiring issues, a faulty brake system component, or overheating of the brake system.

4. How can I diagnose the OBDII code C0274 in my 2016 Chevrolet Silverado?

Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the brake system components, checking the wiring for any damage, and testing the isolation valve for proper functionality.

5. Can I continue driving my 2016 Chevrolet Silverado with OBDII code C0274?

It is not recommended to continue driving the vehicle with this code present, as it may affect the performance of the brake system and potentially lead to safety hazards.

6. How can I repair OBDII code C0274 in my 2016 Chevrolet Silverado?

Repairing this code may involve replacing the isolation valve, repairing any damaged wiring, addressing overheating issues in the brake system, or fixing any faulty brake components.

7. Is OBDII code C0274 a serious issue in a 2016 Chevrolet Silverado?

Yes, this code should be addressed promptly to ensure the proper functioning of the brake system and maintain vehicle safety.

8. Can I reset the OBDII code C0274 in my 2016 Chevrolet Silverado without fixing the underlying issue?

While you can clear the code with an OBDII scanner, it is recommended to fix the underlying problem to prevent further issues.

9. How much does it typically cost to repair OBDII code C0274 in a 2016 Chevrolet Silverado?

The cost of repair can vary depending on the exact cause of the issue, but it may involve parts and labor expenses ranging from $200 to $500 or more.

10. How often does OBDII code C0274 occur in a 2016 Chevrolet Silverado?

The occurrence of this code can vary, but it is not an extremely common issue. If you encounter this code, it is essential to address it promptly to avoid any potential safety risks.