Engine-CodesGMC – B1516 2016 GMC Sierra

B1516 2016 GMC Sierra Code - Battery Current Sensor

Quick Answer

The B1516 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Battery Current Sensor. Common causes include Faulty battery current sensor, Wiring issues or shorts, Malfunctioning alternator. 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 2016 GMC Sierra indicates Battery Current Sensor.
Common causes
Common causes include Faulty battery current sensor, Wiring issues or shorts, Malfunctioning alternator.
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.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code B1516 2016 GMC Sierra Description

The B1516 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Battery Current Sensor. This sensor is responsible for monitoring the current flow in and out of the vehicle's battery. When this code is triggered, it indicates that there is a malfunction or issue with the battery current sensor. This can have a significant impact on the vehicle's performance and overall electrical system.

OBDII Code B1516 2016 GMC Sierra - Battery Current Sensor
B1516 2016 GMC Sierra Code - Battery Current Sensor

Common Causes of B1516 2016 GMC Sierra

  1. Faulty battery current sensor
  2. Wiring issues or shorts
  3. Malfunctioning alternator
  4. Corrosion on battery terminals
  5. Dead or failing battery

Symptoms of B1516 2016 GMC Sierra

  1. Check engine light illuminated
  2. Battery warning light on the dashboard
  3. Issues with starting the vehicle
  4. Electrical system malfunctions
  5. Reduced fuel efficiency

How to Fix B1516 2016 GMC Sierra

  1. Begin by diagnosing the specific cause of the B1516 code using a diagnostic scanner.
  2. Inspect the battery current sensor and wiring for any signs of damage or corrosion.
  3. Test the alternator to ensure it is functioning correctly and charging the battery properly.
  4. Replace the battery current sensor if it is found to be faulty.
  5. Clear the DTC and test the vehicle to ensure the issue has been resolved.

Cost to Fix B1516 2016 GMC Sierra

The cost of repairing a B1516 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of replacing a battery current sensor can range from $100 to $300, including parts and labor. Additional costs may be incurred if other components such as the alternator or battery need to be replaced. It's important to note that labor rates at auto repair shops can vary, so it's advisable to check local rates for a more accurate estimate.

Tech Notes for B1516 2016 GMC Sierra

B1516:08 Battery Current Sensor Signal Invalid

B1516:66 Battery Current Sensor Incorrect Mounting

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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 2016 GMC Sierra Code

1. What does the OBDII code B1516 mean on a 2016 GMC Sierra?

The B1516 code indicates an issue with the Battery Current Sensor, which monitors the battery's charge and discharge to maintain the electrical system's efficiency.

2. What are the common symptoms of the B1516 code on a 2016 GMC Sierra?

Symptoms may include the battery warning light turning on, erratic charging system behavior, or issues with the vehicle's Start/Stop system.

3. What causes the B1516 code to appear on a GMC Sierra?

Common causes include a faulty battery current sensor, damaged wiring or connectors to the sensor, or a malfunctioning alternator.

4. Can a weak battery trigger the B1516 code on a 2016 GMC Sierra?

Yes, a weak or failing battery may cause inaccurate readings from the battery current sensor, potentially triggering the code.

5. How do you diagnose the B1516 code on a GMC Sierra?

Diagnosis involves scanning for codes, inspecting the battery current sensor and its wiring for damage, and testing the alternator and battery performance.

6. Can I drive my 2016 GMC Sierra with the B1516 code active?

While the vehicle may still operate, ignoring the code can lead to further electrical issues or battery charging problems. It’s best to address it promptly.

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

Repairs may include replacing the battery current sensor, repairing damaged wiring, or addressing issues with the battery or alternator.

8. Where is the battery current sensor located on a 2016 GMC Sierra?

The battery current sensor is typically located on the negative battery cable near the battery.

9. Does the B1516 code require reprogramming after repair?

In some cases, the vehicle's control module may need to be reset or reprogrammed after replacing the battery current sensor to clear the code.

10. How much does it cost to fix the B1516 code on a 2016 GMC Sierra?

Repair costs vary depending on the issue, but replacing the battery current sensor generally costs $100-$300, including parts and labor.

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