AutoCodesGMC – B1480 2016 GMC Sierra

B1480 2016 GMC Sierra Code - Battery Rundown Protection Circuit

Quick Answer

The Body Control Module (BCM) supplies battery voltage to the front and rear reading lamps, left and right sunshade lamps, center console compartment lamp, and instrument panel compartment lamp via the courtesy lamp control circuit. Common causes include Faulty Lamp, Lamp harness is open or shorted, Lamp 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
B1480 2016 GMC Sierra indicates Battery Rundown Protection Circuit.
Common causes
Common causes include Faulty Lamp, Lamp harness is open or shorted, Lamp 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 263
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 20, 2023
💬 Need more help? Ask Coddy for instant answers — it's free!

Code B1480 2016 GMC Sierra Description

The Body Control Module (BCM) supplies battery voltage to the front and rear reading lamps, left and right sunshade lamps, center console compartment lamp, and instrument panel compartment lamp via the courtesy lamp control circuit. When the instrument panel compartment, center console armrest, or sunshade mirror is opened, the switch contacts close allowing battery voltage to flow illuminating the respective lamps. The front and rear reading lamps are controlled by individual switches that are activated by the occupants when additional cabin lighting is required. In the event that any of these courtesy lamps were to remain illuminated for more than 10 min with the ignition switch in the OFF position, the BCM will deactivate the courtesy lamp control circuit to prevent total battery discharge. The Diagnostic Trouble Code (DTC) will be set when the BCM detects a fault in the courtesy lamps control circuit.
OBDII Code B1480 2016 GMC Sierra - Battery Rundown Protection Circuit - AutoCodes.com
B1480 2016 GMC Sierra Code - Battery Rundown Protection Circuit

What are the Possible Causes of the DTC B1480 2016 GMC Sierra?

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

How to Fix the DTC B1480 2016 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 B1480 2016 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 B1480 2016 GMC Sierra code?

Need more information on how to fix the B1480 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1480 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 B1480 2016 GMC Sierra Code

1. What does the OBDII code B1480 mean for a 2016 GMC Sierra?

The code B1480 indicates an issue with the Battery Rundown Protection Circuit, which is designed to prevent battery drain when the vehicle is turned off.

2. What are the common symptoms of code B1480 in a 2016 GMC Sierra?

Symptoms may include a drained battery, electrical components staying powered after the ignition is off, or intermittent electrical issues.

3. What causes the B1480 code to appear on a 2016 GMC Sierra?

Common causes include a faulty relay, wiring issues, a malfunctioning control module, or a stuck component that fails to shut off when the vehicle is off.

4. Can a dead battery trigger code B1480 on a 2016 GMC Sierra?

Yes, a dead or weak battery can contribute to this code, especially if the battery rundown protection circuit is already failing.

5. How is the B1480 code diagnosed in a 2016 GMC Sierra?

A technician will typically inspect the battery, test the relay and related circuits, check for damaged wiring, and use a scan tool to verify the code and monitor system functionality.

6. Is it safe to drive a 2016 GMC Sierra with the B1480 code active?

While the vehicle may still be drivable, it is not recommended as the battery may drain unexpectedly, leaving you stranded.

7. How do you fix the B1480 code on a 2016 GMC Sierra?

Repairs may include replacing a faulty relay, repairing damaged wiring, reprogramming the control module, or replacing the battery if it has been compromised.

8. Can resetting the code B1480 fix the issue on a 2016 GMC Sierra?

Resetting the code may clear it temporarily, but if the underlying issue isn’t resolved, the code will likely return.

9. How much does it typically cost to repair the B1480 code in a 2016 GMC Sierra?

Repair costs vary but can range from $100 to $300 depending on whether the issue is with a relay, wiring, or the control module.

10. What can be done to prevent the B1480 code from appearing on a 2016 GMC Sierra?

Regular maintenance, ensuring the battery is in good condition, and promptly addressing electrical issues can help prevent this code from appearing.

Discuss the causes and fixes for B1480 2016 GMC Sierra OBDII Code

Code B1480 2016 GMC Sierra comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play