AutoCodesGMC – B1516 2015 GMC Sierra

B1516 2015 GMC Sierra Code - Battery Current Sensor

Quick Answer

The Battery Current Sensor is a 3-wire hall effect current sensor. Common causes include Faulty Battery Current Sensor, Battery Current Sensor harness is open or shorted, Battery Current Sensor 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
B1516 2015 GMC Sierra indicates Battery Current Sensor.
Common causes
Common causes include Faulty Battery Current Sensor, Battery Current Sensor harness is open or shorted, Battery Current Sensor 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.
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Code Popularity 235
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 20, 2023
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Code B1516 2015 GMC Sierra Description

The Battery Current Sensor is a 3-wire hall effect current sensor. The Body Control Module (BCM) supplies 5 V and ground to the battery current sensor. The battery current sensor measures the amount of current flowing to or from the battery, and supplies a Pulse Width Modulation (PWM) signal to the BCM. The Diagnostic Trouble Code (DTC) will be set when the BCM detects a fault with the Battery Current Sensor.
OBDII Code B1516 2015 GMC Sierra - Battery Current Sensor - AutoCodes.com
B1516 2015 GMC Sierra Code - Battery Current Sensor

What are the Possible Causes of the DTC B1516 2015 GMC Sierra?

  • Faulty Battery Current Sensor
  • Battery Current Sensor harness is open or shorted
  • Battery Current Sensor circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B1516 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1516 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 B1516 2015 GMC Sierra code?

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Need Help with the Code?

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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 B1516 2015 GMC Sierra Code

1. What does the OBDII code B1516 mean on a 2015 GMC Sierra?

The B1516 code indicates an issue with the battery current sensor, which monitors and reports the current flowing to and from the battery.

2. What are the common symptoms of code B1516 in a 2015 GMC Sierra?

Symptoms may include a check engine light, charging system warnings, erratic battery voltage readings, or improper battery charging.

3. What causes the B1516 code to appear?

Common causes include a faulty battery current sensor, corroded or damaged wiring, loose connections, or issues with the vehicle’s charging system.

4. Can a bad battery trigger the B1516 code?

While a bad battery itself may not trigger the code, it can cause abnormal readings that may lead to the detection of a battery current sensor issue.

5. How do you diagnose the B1516 code?

Diagnosis typically involves using a scan tool to confirm the code, inspecting the battery current sensor and its wiring, and testing the charging system for proper operation.

6. Can I drive my 2015 GMC Sierra with the B1516 code?

Driving with this code is generally safe in the short term, but it’s important to address the issue promptly to avoid potential charging system failures.

7. How do you fix the B1516 code on a 2015 GMC Sierra?

Repairs may include replacing the battery current sensor, repairing or replacing damaged wiring, or ensuring all connections are clean and secure.

8. Where is the battery current sensor located on a 2015 GMC Sierra?

The battery current sensor is typically located on the negative battery cable or integrated into the battery cable assembly.

9. How much does it cost to fix the B1516 code on a 2015 GMC Sierra?

Repair costs can vary but generally range from $100 to $300, depending on whether just the sensor needs replacement or additional wiring repairs are required.

10. Can clearing the code fix the B1516 issue?

Clearing the code may temporarily remove the warning, but the underlying problem must be resolved to prevent the code from returning.

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