B1980 – OBD-II DTC

OBD-II DTC B1980 – Bulb – Outage Condition Detected

DTC B1980 meaning

DTC B1980 refers to a diagnostic trouble code indicating a bulb outage condition detected in the vehicle’s lighting system. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various components and systems within the vehicle. When the system detects that a bulb is not functioning correctly, it triggers this code to alert the driver or technician of the issue.

DTC B1980 symptoms

Common symptoms associated with DTC B1980 may include:

• Warning lights illuminated on the dashboard
• Inoperative exterior or interior lights
• Flashing or flickering lights
• Inconsistent lighting performance

DTC B1980 causes

Several factors can lead to the triggering of DTC B1980, including:

• Burnt-out bulbs
• Faulty wiring or connections
• Defective light control module
• Corrosion in the bulb socket
• Issues with the vehicle’s body control module (BCM)

DTC B1980 seriousness

The seriousness of DTC B1980 can vary depending on the specific bulb that is out. While some bulbs, like turn signals or brake lights, are critical for safe driving, others may be less urgent. However, it is advisable to address this code promptly to ensure all vehicle lights are functioning correctly and to maintain safety on the road.

How to diagnose DTC B1980

To diagnose DTC B1980, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the B1980 code.
2. Inspect all exterior and interior lights for functionality.
3. Check for any blown fuses related to the lighting system.
4. Examine wiring and connections for signs of damage or corrosion.
5. Test the light control module and BCM for proper operation.

How to fix DTC B1980 step-by-step instructions

To fix DTC B1980, follow these step-by-step instructions:

1. Identify the specific bulb that is out and replace it if necessary.
2. Repair or replace any damaged wiring or connectors.
3. Clean any corrosion found in the bulb socket.
4. Test the light control module and replace it if it is defective.
5. Clear the DTC using an OBD-II scanner and retest the system.

How to erase DTC B1980

To erase DTC B1980, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Navigate to the option to clear or erase trouble codes on the scanner.
4. Confirm the action to erase the DTC.
5. Disconnect the scanner and start the vehicle to ensure the code does not return.

Recommended tools for OBD-II diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.