B1328 2016 Chevrolet Silverado Code - Device Power Circuit High

This code indicates a "Device Power Circuit High" issue, meaning there is an abnormally high voltage detected in a specific control module's power circuit.

Symptoms can include malfunctioning electronic components, warning lights on the dashboard, or intermittent electrical issues.

Common causes include faulty wiring, damaged connectors, a malfunctioning control module, or a short to voltage in the circuit.

While less common, electrical issues like a weak or overcharged battery can potentially contribute to this code if they affect the circuit's voltage.

Start by visually inspecting the wiring and connectors in the affected circuit for damage or corrosion. Then, use a multimeter to check for excessive voltage or shorts.

It depends on the severity of the issue. Minor electrical problems may not impact drivability, but ongoing electrical faults can lead to more significant issues if left unresolved.

Repairs may include replacing damaged wires, fixing corroded connectors, or replacing a faulty control module if necessary.

A blown fuse is unlikely to cause a high voltage issue, but it’s worth checking the fuses in the affected circuit during diagnostics.

Costs vary depending on the cause, but simple wiring repairs may cost $100–$200, while control module replacement can exceed $500.

Basic troubleshooting like inspecting wiring can be done at home, but more complex repairs, such as replacing a control module, may require professional assistance.