B1325 2018 GMC Sierra Code - Device Power Circuit Voltage
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 Faulty Control Module Power, Control Module Power harness is open or shorted, Control Module Power 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
- B1325 2018 GMC Sierra indicates Device Power Circuit Voltage.
- Common causes
- Common causes include Faulty Control Module Power, Control Module Power harness is open or shorted, Control Module Power 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.
Code B1325 2018 GMC Sierra Description
What are the Possible Causes of the DTC B1325 2018 GMC Sierra?
- Faulty Control Module Power
- Control Module Power harness is open or shorted
- Control Module Power circuit poor electrical connection
How to Fix the DTC B1325 2018 GMC Sierra?
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.
Code Tech Notes
- B1325 07: Control Module Power Circuit High Voltage
- B1325 4A Device Power Circuit Checksum Error
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1325 2018 GMC Sierra 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 B1325 2018 GMC Sierra code?
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Frequently Asked Questions about B1325 2018 GMC Sierra Code
1. What does the OBDII code B1325 mean for a 2018 GMC Sierra?
Code B1325 refers to an issue with the "Device Power Circuit Voltage," indicating a problem with the power supply to a module or component.
2. What are the common symptoms of code B1325 in a 2018 GMC Sierra?
Symptoms may include warning lights on the dashboard, erratic electrical behavior, or intermittent functionality of certain modules like the body control module (BCM).
3. What causes the B1325 code in a 2018 GMC Sierra?
Common causes include a weak or failing vehicle battery, loose or corroded battery terminals, wiring issues, or a faulty ground connection.
4. Can a low battery trigger the B1325 code in a GMC Sierra?
Yes, a low or weak battery can cause voltage irregularities, which may trigger the B1325 code.
5. How do I diagnose the B1325 code on my 2018 GMC Sierra?
Start by checking the battery voltage and connections, inspect wiring harnesses for damage, and test the ground connections to ensure they are secure and free of corrosion.
6. Is the B1325 code serious on a 2018 GMC Sierra?
While not critical, it can lead to electrical issues or module malfunctions if not addressed promptly, which may affect vehicle functionality.
7. How is the B1325 code fixed on a 2018 GMC Sierra?
Repairs may include charging or replacing the battery, cleaning and tightening battery terminals, repairing or replacing damaged wiring, or re-establishing proper ground connections.
8. Can a failing alternator cause the B1325 code in a GMC Sierra?
Yes, a failing alternator can cause inconsistent voltage supply, potentially triggering the B1325 code.
9. Does clearing the B1325 code fix the problem on a GMC Sierra?
Clearing the code may turn off the warning temporarily, but the underlying issue must be addressed to prevent the code from returning.
10. Can a professional scan tool provide more insight into the B1325 code in a GMC Sierra?
Yes, a professional scan tool can check for related codes, monitor voltage data in real-time, and help pinpoint the root cause of the issue.
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