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Engine-Codes – GMC – B1395 2017 GMC Sierra

B1395 2017 GMC Sierra Code - Control Module Voltage Reference Output 1

Quick Answer

The B1395 diagnostic trouble code for a 2017 GMC Sierra specifically relates to the Control Module Voltage Reference Output 1. Common causes include Faulty control module, Wiring or connection issues, Corrosion on electrical components. 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 2017 GMC Sierra indicates Control Module Voltage Reference Output 1.
Common causes
Common causes include Faulty control module, Wiring or connection issues, Corrosion on electrical components.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code B1395 2017 GMC Sierra Description

The B1395 diagnostic trouble code for a 2017 GMC Sierra specifically relates to the Control Module Voltage Reference Output 1. This code indicates that there is an issue with the voltage reference output from a control module within the vehicle's electronic system. The control module is responsible for regulating various functions and systems in the vehicle, and if the voltage reference output is not functioning correctly, it can lead to disruptions in the performance of the vehicle.

OBDII Code B1395 2017 GMC Sierra - Control Module Voltage Reference Output 1
B1395 2017 GMC Sierra Code - Control Module Voltage Reference Output 1

Common Causes of B1395 2017 GMC Sierra

  1. Faulty control module.
  2. Wiring or connection issues.
  3. Corrosion on electrical components.
  4. Power supply problems.
  5. Environmental factors such as moisture or heat affecting the control module.

Symptoms of B1395 2017 GMC Sierra

  1. Check engine light illuminated on the dashboard.
  2. Inaccurate or erratic readings from sensors.
  3. Unusual behavior of vehicle systems, such as the HVAC or ABS.
  4. Loss of power or engine stalling.
  5. Difficulty starting the vehicle.

How to Fix B1395 2017 GMC Sierra

  1. Begin by conducting a thorough inspection of the control module and wiring to identify any visible damage or loose connections.
  2. Test the voltage output of the control module using a multimeter to determine if it is within the specified range.
  3. Replace the control module if it is determined to be faulty. Ensure the new module is compatible with the vehicle's make and model.
  4. Repair or replace any damaged wiring or connectors.
  5. Clear the diagnostic trouble codes from the vehicle's system and perform a test drive to verify that the issue has been resolved.

Cost to Fix B1395 2017 GMC Sierra

The cost of repairing a Control Module Voltage Reference Output 1 issue in a 2017 GMC Sierra can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the repair costs for this type of issue can range from $200 to $500, including parts and labor. However, it is essential to note that the actual cost may be higher or lower based on factors such as location, the severity of the problem, and the labor rates of the auto repair shop. It is recommended to obtain a detailed quote from a trusted mechanic before proceeding with the repair.

What does this mean?

Tech Notes for B1395 2017 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 2017 GMC Sierra Code

1. What does the OBDII code B1395 mean on a 2017 GMC Sierra?

The B1395 code indicates an issue with the Control Module Voltage Reference Output 1, which is responsible for supplying a stable voltage to certain vehicle sensors.

2. What are the common symptoms of code B1395 in a 2017 GMC Sierra?

Symptoms may include warning lights on the dashboard, malfunctioning sensors, poor vehicle performance, or intermittent electrical issues.

3. What causes the B1395 code to appear?

Common causes include a short or open circuit in the voltage reference circuit, a faulty control module, damaged wiring, or a failed sensor.

4. Can I still drive my 2017 GMC Sierra with the B1395 code active?

While the vehicle may still be drivable, ignoring the issue can lead to further problems with sensor functionality and performance. It’s best to address the problem promptly.

5. How do I diagnose the B1395 code in my GMC Sierra?

Diagnosis involves inspecting the wiring and connectors for damage, testing the voltage reference circuit, and using a scan tool to monitor sensor data and pinpoint the fault.

6. What tools are needed to fix the B1395 code?

A multimeter, wiring diagram, and an OBDII scan tool are typically required to diagnose and repair the issue.

7. What repairs can resolve code B1395 in a 2017 GMC Sierra?

Repairs may include fixing or replacing damaged wiring, cleaning or reconnecting loose connectors, or replacing the faulty control module or sensor.

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

Repair costs can vary widely depending on the root cause, ranging from $50 for wiring repairs to over $500 if a control module replacement is necessary.

9. Can a dead battery cause the B1395 code in my GMC Sierra?

While a dead battery is unlikely to directly cause this code, low voltage or electrical issues related to the battery can affect the control module’s operation.

10. How can I prevent the B1395 code from recurring?

Regularly inspect and maintain your vehicle’s wiring and connectors, and address any electrical issues promptly to prevent voltage reference circuit problems.

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