AutoCodesGMC – B1480 2014 GMC Sierra

B1480 2014 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 2014 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.
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Code Popularity 275
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 B1480 2014 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 2014 GMC Sierra - Battery Rundown Protection Circuit - AutoCodes.com
B1480 2014 GMC Sierra Code - Battery Rundown Protection Circuit

What are the Possible Causes of the DTC B1480 2014 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 2014 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 2014 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 2014 GMC Sierra 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 B1480 2014 GMC Sierra Code

1. What does the OBDII code B1480 mean on a 2014 GMC Sierra?

The B1480 code indicates a fault in the Battery Rundown Protection Circuit, which is responsible for preventing excessive battery drain when the vehicle is off.

2. What are the common symptoms of the B1480 code on a 2014 GMC Sierra?

Symptoms may include a dead or weak battery, interior lights or accessories staying on, or intermittent electrical issues.

3. What causes the B1480 code to appear on a 2014 GMC Sierra?

Common causes include a faulty relay, damaged wiring in the battery rundown protection system, or a malfunction in the Body Control Module (BCM).

4. Can a weak battery cause the B1480 code on a 2014 GMC Sierra?

Yes, a weak or failing battery can sometimes trigger this code, as it may affect the electrical system's functionality.

5. How do I fix the B1480 code on a 2014 GMC Sierra?

Repairs may involve replacing a faulty relay, repairing damaged wiring, or reprogramming or replacing the BCM, depending on the root cause.

6. Can I drive my 2014 GMC Sierra with the B1480 code active?

It’s possible to drive the vehicle, but ignoring the issue may lead to a drained battery or other electrical problems.

7. How do I diagnose the B1480 code on a 2014 GMC Sierra?

Diagnosis typically includes inspecting the battery rundown protection relay, checking for damaged wiring or connectors, and scanning the BCM for additional fault codes.

8. Does the B1480 code mean the battery is bad on a 2014 GMC Sierra?

Not necessarily. While a bad battery can contribute to the issue, the code primarily points to a problem in the battery rundown protection circuit.

9. How much does it cost to repair the B1480 code on a 2014 GMC Sierra?

Repair costs vary but typically range from $100 to $500, depending on whether a relay, wiring repair, or BCM replacement is needed.

10. Can a software update fix the B1480 code on a 2014 GMC Sierra?

In some cases, a software update for the BCM may resolve the issue if it's related to a programming fault. A professional scan tool can confirm this.

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