B1328 2015 GMC Sierra Code - Device Power Circuit High
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 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
- B1328 2015 GMC Sierra indicates Device Power Circuit High.
- Common causes
- Common causes include 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.
Code B1328 2015 GMC Sierra Description
What are the Possible Causes of the DTC B1328 2015 GMC Sierra?
- Battery voltage
- Faulty Control Module
- Control Module harness is open or shorted
- Control Module circuit poor electrical connection
How to Fix the DTC B1328 2015 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1328 2015 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 B1328 2015 GMC Sierra code?
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Frequently Asked Questions about B1328 2015 GMC Sierra Code
1. What does OBDII code B1328 mean on a 2015 GMC Sierra?
Code B1328 indicates a "Device Power Circuit High" issue, meaning the voltage in a specific power circuit is higher than expected.
2. What are the common symptoms of code B1328 in a 2015 GMC Sierra?
Symptoms may include warning lights on the dashboard, malfunctioning electronic components, or intermittent issues with powered devices like the radio or HVAC system.
3. What causes the B1328 code to appear on a GMC Sierra?
Common causes include a faulty wiring connection, damaged power supply circuit, a failing control module, or an overcharging alternator.
4. Can a blown fuse cause the B1328 code?
Not directly, but a blown fuse may be a symptom of underlying electrical issues contributing to the circuit high voltage condition.
5. How do you diagnose the B1328 code?
Diagnosis involves inspecting the wiring and connectors for damage, testing the voltage in the affected circuit, and using a scan tool to identify the specific device or module reporting the issue.
6. Is it safe to drive with the B1328 code active?
It is generally not recommended, as the high voltage condition can damage sensitive electronic components over time.
7. How can the B1328 code be fixed?
Repairs may include replacing damaged wiring, repairing connectors, replacing a faulty control module, or addressing an overcharging alternator.
8. Can a weak battery cause the B1328 code?
A weak battery is unlikely to cause this code, but electrical issues like overcharging from a faulty alternator could lead to it.
9. How much does it cost to fix a B1328 code on a 2015 GMC Sierra?
Repair costs vary depending on the root cause but typically range from $100 for simple wiring repairs to $500 or more for module replacement.
10. Can clearing the B1328 code with a scan tool solve the issue?
Clearing the code may temporarily turn off the warning light, but the underlying problem must be addressed to prevent the code from returning.
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