AutoCodes – GMC – B1395 GMC

B1395 GMC Code - Control Module Voltage Reference Output 1

Quick Answer

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Common causes include Low battery voltage, Faulty Control Module, Control Module harness is open or shorted. 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 GMC indicates Control Module Voltage Reference Output 1.
Common causes: Common causes include Low battery voltage, Faulty Control Module, Control Module harness is open or shorted.
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 6,361

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 24, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1395 GMC Description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Damage to components, and incorrect data can occur when the voltage is out of range. The vehicle has multiple Control Modules that will set this Diagnostic Trouble Code (DTC).

OBDII Code B1395 GMC - Control Module Voltage Reference Output 1 - AutoCodes.com — B1395 GMC Code - Control Module Voltage Reference Output 1

What does this mean?

What are the Possible Causes of the DTC B1395 GMC?

Low battery voltage
Faulty Control Module
Control Module harness is open or shorted
Control Module circuit poor electrical connection

How to Fix the DTC B1395 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 does this mean?

Code Tech Notes

B1395:03 Control Module Voltage Reference Output Circuit Short to Ground
B1395:07 Control Module Voltage Reference Output Circuit Short to Battery or Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1395 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.

Need more information about the B1395 GMC code?

Need more information on how to fix the B1395 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1395 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

B1395 2014 GMC Sierra — Control Module Voltage Reference Output 1
B1395 2015 GMC Sierra — Control Module Voltage Reference Output 1
B1395 2016 GMC Sierra — Control Module Voltage Reference Output 1
B1395 2017 GMC Sierra — Control Module Voltage Reference Output 1
B1395 2018 GMC Sierra — Control Module Voltage Reference Output 1

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 GMC Code

1. What are the common symptoms of OBDII code B1395 GMC?

- Common symptoms include issues with engine performance, illuminated warning lights on the dashboard, and potential stalling or rough idling.

2. What causes the OBDII code B1395 GMC to trigger?

- The code is typically triggered by a fault in the control module voltage reference output 1 circuit, such as a wiring issue, faulty control module, or a blown fuse.

3. How can I diagnose the cause of OBDII code B1395 GMC?

- To diagnose the issue, you can use a diagnostic scan tool to read the trouble codes, check the wiring connections, inspect the control module, and test the voltage output of the affected circuit.

4. Can I still drive my vehicle with OBDII code B1395 GMC?

- It is not recommended to drive the vehicle with this code active, as it can lead to potential performance issues and further damage if left unaddressed.

5. How can I repair OBDII code B1395 GMC?

- Repairing the code involves identifying and fixing the root cause, which may include repairing or replacing damaged wiring, replacing the control module, or addressing any other underlying issues.

6. Is OBDII code B1395 GMC a serious problem?

- While the severity of the issue can vary, it is important to address the code promptly to prevent potential damage to other components and ensure the vehicle operates correctly.

7. Can a DIY enthusiast fix OBDII code B1395 GMC?

- Depending on your level of expertise, you may be able to address this code yourself by following repair guides and using the necessary tools for diagnosis and repair.

8. Will resetting the trouble codes make OBDII code B1395 GMC disappear?

- Resetting the trouble codes may temporarily clear the code, but if the underlying issue is not resolved, the code is likely to reappear once the fault is detected again.

9. How much does it cost to repair OBDII code B1395 GMC at a professional mechanic?

- The cost of repairing this code can vary depending on the specific cause, but it may involve diagnostic fees, parts replacement costs, and labor charges, which can add up to a few hundred dollars.

10. Can OBDII code B1395 GMC affect other systems in the vehicle?

- Yes, unresolved issues related to this code can potentially affect other systems in the vehicle, leading to more significant problems if not addressed in a timely manner.