Engine-CodesGMC – B1395 2014 GMC Sierra

B1395 2014 GMC Sierra Code - Control Module Voltage Reference Output 1

Quick Answer

The B1395 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Control Module Voltage Reference Output 1. Common causes include Wiring harness issues or shorts, Faulty control module, Damaged sensor connected to the voltage reference circuit. 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
B1395 2014 GMC Sierra indicates Control Module Voltage Reference Output 1.
Common causes
Common causes include Wiring harness issues or shorts, Faulty control module, Damaged sensor connected to the voltage reference circuit.
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.
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code B1395 2014 GMC Sierra Description

The B1395 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Control Module Voltage Reference Output 1. This code indicates that there is a malfunction in the voltage reference output circuit of a control module in the vehicle. The control module is responsible for regulating various systems in the vehicle, such as the engine, transmission, and emissions control. The voltage reference output is crucial for providing stable and accurate voltage levels to sensors and components throughout the vehicle.

OBDII Code B1395 2014 GMC Sierra - Control Module Voltage Reference Output 1
B1395 2014 GMC Sierra Code - Control Module Voltage Reference Output 1

Common Causes of B1395 2014 GMC Sierra

  1. Wiring harness issues or shorts
  2. Faulty control module
  3. Damaged sensor connected to the voltage reference circuit
  4. Corrosion or poor connections in the circuit
  5. Electrical system malfunctions

Symptoms of B1395 2014 GMC Sierra

  1. Check engine light illuminated on the dashboard
  2. Engine running rough or misfiring
  3. Transmission shifting erratically
  4. Loss of power or acceleration
  5. Poor fuel efficiency

How to Fix B1395 2014 GMC Sierra

  1. Begin by conducting a thorough inspection of the wiring harness and connections related to the voltage reference output circuit.
  2. Test the control module and sensors for proper functionality using a multimeter or diagnostic tool.
  3. Replace any damaged wiring, connectors, or components as needed.
  4. Clear the DTC and reset the vehicle's computer system to see if the code reappears.
  5. Test drive the vehicle to ensure that the symptoms associated with the code have been resolved.

Cost to Fix B1395 2014 GMC Sierra

The typical repair costs for addressing a B1395 code in a 2014 GMC Sierra can vary depending on the specific cause of the issue. On average, you can expect to pay anywhere from $200 to $500 for parts and labor. However, it's important to note that diagnosis time and labor rates at auto repair shops can fluctuate based on various factors. It's recommended to check with local shops for more accurate pricing information.

Tech Notes for B1395 2014 GMC Sierra

B1395:03 Control Module Voltage Reference Output Circuit Short to Ground

B1395:07 Control Module Voltage Reference Output Circuit Short to Battery or Open

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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 B1395 2014 GMC Sierra Code

1. What does the OBDII code B1395 mean on a 2014 GMC Sierra?

Code B1395 indicates an issue with the "Control Module Voltage Reference Output 1," meaning the voltage reference signal is either out of range or malfunctioning.

2. What are common symptoms of the B1395 code in a 2014 GMC Sierra?

Symptoms may include warning lights on the dashboard, erratic sensor readings, failure of certain electrical components, or intermittent electrical issues.

3. What causes the B1395 code to appear in a GMC Sierra?

Potential causes include a faulty control module, damaged wiring or connectors, a short or open circuit in the voltage reference circuit, or corrosion in the electrical system.

4. Can the B1395 code cause drivability issues?

While it may not always directly affect drivability, the code can lead to issues with sensors or components that rely on the voltage reference, potentially impacting the vehicle's performance.

5. How do you diagnose the B1395 code on a 2014 GMC Sierra?

Diagnosis involves scanning the vehicle with an OBDII scanner, inspecting the voltage reference circuit wiring and connectors, and testing the control module for proper functionality.

6. Can a blown fuse cause the B1395 code?

Yes, a blown fuse in the circuit providing power to the voltage reference could trigger the B1395 code.

7. Is it safe to drive a 2014 GMC Sierra with the B1395 code?

Driving with this code is not recommended, as it could lead to further electrical issues or failure of critical systems if left unresolved.

8. How is the B1395 code typically repaired?

Repairs may include fixing or replacing damaged wiring, cleaning corroded connectors, replacing the control module if faulty, or addressing any related system malfunctions.

9. How much does it cost to fix the B1395 code on a GMC Sierra?

Repair costs vary depending on the root cause but typically range from $100 to $500, with higher costs if the control module needs replacement.

10. Can clearing the B1395 code solve the issue?

Clearing the code without addressing the underlying issue will not fix the problem, and the code is likely to return. Proper diagnosis and repair are necessary.

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