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Engine-Codes – Generic – B1328

B1328 Code - Device Power Circuit High

Quick Answer

The B1328 diagnostic trouble code (DTC) refers to a Device Power Circuit High, indicating that there is an issue with the power circuit of a particular device in the vehicle. Common causes include Wiring Harness Damage: A damaged wiring harness can cause high voltage in the power circuit, leading to the B1328 code, Faulty Connectors: Corroded or loose connectors can disrupt the power supply to the device, triggering the code, Short Circuit: A short circuit in the power supply can cause the voltage to spike, resulting in the B1328 DTC. 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 indicates Device Power Circuit High.
Common causes
Common causes include Wiring Harness Damage: A damaged wiring harness can cause high voltage in the power circuit, leading to the B1328 code, Faulty Connectors: Corroded or loose connectors can disrupt the power supply to the device, triggering the code, Short Circuit: A short circuit in the power supply can cause the voltage to spike, resulting in the B1328 DTC.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code B1328 Description

The B1328 diagnostic trouble code (DTC) refers to a Device Power Circuit High, indicating that there is an issue with the power circuit of a particular device in the vehicle. This code typically occurs when the power supply voltage going to the device is higher than the predetermined acceptable range. The affected device could be any electrical component in the vehicle, such as a sensor, actuator, or control module.

OBDII Code B1328 - Device Power Circuit High
B1328 Code - Device Power Circuit High

Common Causes of B1328

  1. Wiring Harness Damage: A damaged wiring harness can cause high voltage in the power circuit, leading to the B1328 code.
  2. Faulty Connectors: Corroded or loose connectors can disrupt the power supply to the device, triggering the code.
  3. Short Circuit: A short circuit in the power supply can cause the voltage to spike, resulting in the B1328 DTC.
  4. Defective Device: A malfunctioning device itself can draw excessive power, causing the power circuit to register high voltage.
  5. Malfunctioning Control Module: A faulty control module can send incorrect signals to the device, leading to power circuit issues.

Symptoms of B1328

  1. Check Engine Light: The illumination of the Check Engine Light on the dashboard is a common symptom associated with the B1328 code.
  2. Erratic Behavior: The affected device may exhibit erratic behavior, such as intermittent operation or incorrect readings.
  3. Loss of Functionality: The device may fail to function properly, leading to a loss of performance or comfort features in the vehicle.
  4. Electrical Issues: The vehicle may experience other electrical issues, such as flickering lights or dead batteries, due to the high voltage in the power circuit.

How to Fix B1328

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the specific DTC and pinpoint the affected device and power circuit.
  2. Inspect Wiring and Connectors: Check the wiring harness and connectors for any damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test Device Operation: Test the affected device to determine if it is functioning correctly. Replace any defective components.
  4. Check Control Module: Inspect the control module for any malfunctions or software issues. Reset or replace the module if necessary.
  5. Clear Codes and Test Drive: Clear the DTC from the vehicle's memory, then test drive the vehicle to ensure the issue has been resolved.

Cost to Fix B1328

The cost of repairing a Device Power Circuit High issue can vary depending on the specific cause of the problem and the parts and labor required for the repair. In general, the cost of repairing this issue can range from $100 to $500, including parts and labor. However, it's important to note that diagnostic time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships. Independent shops often offer lower labor rates. For a more precise estimate, it's recommended to check with local auto repair shops.

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Code B1328 Information for Specific Makes

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 B1328 Code

1. What are the common symptoms of OBDII code B1328 (Device Power Circuit High)?

- Common symptoms include the vehicle's device not functioning properly, such as the radio, navigation system, or other electronic components.

2. What are the possible causes of OBDII code B1328?

- Possible causes include a malfunctioning device, a short circuit in the device's power circuit, or a faulty wiring connection.

3. How can I diagnose OBDII code B1328?

- Diagnostic steps involve checking the affected device for proper function, inspecting the power circuit wiring for any damage, and testing the voltage in the circuit.

4. Can OBDII code B1328 be cleared/reset without fixing the underlying issue?

- Clearing the code without addressing the root cause may temporarily remove the warning light, but the issue will likely reoccur until the underlying problem is resolved.

5. What repair tips can help fix OBDII code B1328?

- Repair tips include checking and repairing any damaged wiring, replacing the faulty device, ensuring proper connections, and resetting the code after repairs.

6. Is it safe to continue driving with OBDII code B1328 present?

- It is generally safe to drive with this code, but it is recommended to address the issue promptly to prevent any inconvenience from malfunctioning devices in the vehicle.

7. Will OBDII code B1328 affect the vehicle's performance?

- This code typically does not affect the vehicle's performance in terms of driving, but it may impact the functionality of certain electronic devices.

8. How much does it cost to repair OBDII code B1328?

- Repair costs can vary depending on the underlying issue, such as replacing a faulty device or repairing damaged wiring. It is advisable to consult a professional for an accurate estimate.

9. Can extreme weather conditions trigger OBDII code B1328?

- Extreme weather conditions may not directly trigger this code, but they can potentially exacerbate existing electrical issues leading to the Device Power Circuit High fault.

10. Are there any preventive measures to avoid OBDII code B1328 in the future?

- Regularly inspecting the vehicle's electrical components, ensuring proper wiring connections, and addressing any issues promptly can help prevent OBDII code B1328 from occurring.

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