AutoCodes – GMC – B3883 2018 GMC Sierra

B3883 2018 GMC Sierra Code - License Plate Lamp Circuit

Quick Answer

When the headlamp switch is placed in the HEAD or PARK position, the ground is applied to the park lamp switch ON signal circuit to the Body Control Module (BCM). Common causes include Faulty License Plate Lamp, License Plate Lamp harness is open or shorted, License Plate Lamp circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B3883 2018 GMC Sierra indicates License Plate Lamp Circuit.
Common causes: Common causes include Faulty License Plate Lamp, License Plate Lamp harness is open or shorted, License Plate Lamp circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 394

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Basic DIY (1 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B3883 2018 GMC Sierra Description

When the headlamp switch is placed in the HEAD or PARK position, the ground is applied to the park lamp switch ON signal circuit to the Body Control Module (BCM). The BCM responds by applying a voltage to the park lamps, tail lamps, and license lamps control circuits illuminating the park, tail, and license lamps. The Diagnostic Trouble Code (DTC) sets when the BCM detects a short to ground, short to voltage, or an open/high resistance in the license lamps control circuit.

OBDII Code B3883 2018 GMC Sierra - License Plate Lamp Circuit - AutoCodes.com — B3883 2018 GMC Sierra Code - License Plate Lamp Circuit

What does this mean?

What are the Possible Causes of the DTC B3883 2018 GMC Sierra?

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

How to Fix the DTC B3883 2018 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 does this mean?

Code Tech Notes

B3883:01 License Plate Lamp Circuit Short to Battery
B3883:02 License Plate Lamp Circuit Short to Ground
B3883:04 License Plate Lamp Circuit Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B3883 2018 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 B3883 2018 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 B3883 2018 GMC Sierra Code

1. What does OBDII code B3883 for a 2018 GMC Sierra mean?

The B3883 code specifically refers to an issue with the License Plate Lamp Circuit in a 2018 GMC Sierra.

2. What are the common symptoms of OBDII code B3883 in a 2018 GMC Sierra?

Common symptoms include the license plate lamp not working, flickering, or showing intermittent operation.

3. What are the possible causes of OBDII code B3883 in a 2018 GMC Sierra?

Potential causes include a faulty license plate lamp bulb, wiring issues, a defective lamp socket, or a malfunctioning control module.

4. How can I diagnose the OBDII code B3883 in my 2018 GMC Sierra?

You can start by visually inspecting the license plate lamp, checking the wiring for any damage, testing the bulb, and using a multimeter to check for continuity in the circuit.

5. Can I repair OBDII code B3883 in a 2018 GMC Sierra myself?

If you have basic knowledge of automotive electrical systems, you may be able to repair the issue yourself by replacing the faulty bulb, repairing damaged wiring, or fixing the lamp socket.

6. Is it safe to continue driving with OBDII code B3883 in a 2018 GMC Sierra?

While the issue may not affect the overall drivability of the vehicle, it is important to address it promptly to ensure proper illumination of the license plate for safety and legal compliance.

7. How much does it cost to fix OBDII code B3883 in a 2018 GMC Sierra?

The cost of repair can vary depending on the specific cause of the issue, but it may range from a few dollars for a new bulb to a bit more for professional diagnosis and repair.

8. Can resetting the OBDII system clear the B3883 code in a 2018 GMC Sierra?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not resolved, the code is likely to reappear after some driving cycles.

9. Will OBDII code B3883 cause my 2018 GMC Sierra to fail an emissions test?

While the B3883 code is not directly related to emissions, some inspection stations may flag it as a lighting system malfunction, which could result in a failed emissions test.

10. How can I prevent OBDII code B3883 from occurring in my 2018 GMC Sierra in the future?

Regularly inspecting and maintaining the license plate lamp circuit, replacing bulbs as needed, and addressing any wiring issues promptly can help prevent the recurrence of the B3883 code.