AutoCodes – GMC – B1327 GMC

B1327 GMC Code - Device Power 1 Circuit Low

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: B1327 GMC indicates Device Power 1 Circuit Low.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 2,214

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 08, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B1327 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 B1327 GMC - Device Power 1 Circuit Low - AutoCodes.com — B1327 GMC Code - Device Power 1 Circuit Low

What does this mean?

What are the Possible Causes of the DTC B1327 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 B1327 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 B1327 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 B1327 GMC code?

Need more information on how to fix the B1327 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1327 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

B1327 2014 GMC Sierra — Device Power 1 Circuit Low
B1327 2015 GMC Sierra — Device Power 1 Circuit Low
B1327 2016 GMC Sierra — Device Power 1 Circuit Low
B1327 2017 GMC Sierra — Device Power 1 Circuit Low
B1327 2018 GMC Sierra — Device Power 1 Circuit Low

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 B1327 GMC Code

1. What are the common symptoms of OBDII code B1327 GMC (Device Power 1 Circuit Low)?

- Common symptoms include issues with power windows, power locks, interior lights, or other electrical components.

2. What are the possible causes of OBDII code B1327 GMC?

- The code B1327 GMC can be caused by a faulty power window switch, damaged wiring, blown fuse, or a malfunctioning control module.

3. How can I diagnose the OBDII code B1327 GMC?

- To diagnose the code, you can use an OBDII scanner to retrieve the specific fault code, visually inspect the wiring and connectors, and test the power window switch and related components.

4. What are some repair tips for fixing OBDII code B1327 GMC?

- Repair tips include checking and replacing blown fuses, repairing damaged wiring, replacing faulty power window switches, and resetting the control module.

5. Can OBDII code B1327 GMC be fixed at home, or do I need professional help?

- Depending on the root cause of the code, some fixes can be done at home, such as replacing a fuse or a power window switch. However, more complex issues may require professional assistance.

6. Is it safe to continue driving with OBDII code B1327 GMC present?

- It is generally safe to drive with this code, but it is recommended to address the issue promptly to avoid further electrical problems or potential safety concerns.

7. How much does it typically cost to repair OBDII code B1327 GMC?

- The cost of repair can vary depending on the underlying cause, but it may range from a simple fuse replacement costing a few dollars to a more involved repair that could be a few hundred dollars.

8. Can a faulty battery or alternator cause OBDII code B1327 GMC to appear?

- While a faulty battery or alternator can cause electrical issues, they are not typically directly related to the specific code B1327 GMC. It is essential to diagnose the issue accurately to determine the exact cause.

9. Will resetting the OBDII system clear the B1327 GMC code?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not fixed, the code is likely to reappear once the problem is detected again.

10. Are there any preventive measures to avoid OBDII code B1327 GMC in the future?

- Regularly checking and maintaining the electrical components in your vehicle, such as power window switches and wiring, can help prevent issues that may trigger the B1327 GMC code.