GM 12-Pin Headlight Wire Harness Connector – Female OEM Multi-Variant

This 12-pin female headlight connector is designed for General Motors vehicles with multi-function LED or HID headlight assemblies. The 12-pin configuration integrates low beam, high beam, DRL, turn signal, leveling motor, and adaptive lighting circuits. Multiple variants are available to match different GM headlight harness configurations – select the variant matching your OEM connector shape and wire gauge.

Key Specifications

Why Headlight Connectors Fail

GM headlight connectors are exposed to road vibration, thermal cycling, and moisture from the headlight housing. Terminal oxidation, housing stress cracks, or melted connectors from high-current LED drivers cause intermittent headlight failures, DRL malfunctions, or B-code fault codes. Replacing the connector restores full headlight circuit integrity and eliminates ghost lighting faults.

Variant Guide

Multiple variants are available to match different GM headlight harness configurations. Each variant corresponds to a specific connector body shape, terminal pitch, or wire gauge used across different GM model years and platforms. Select the variant that matches your OEM connector.

• Female / Female 1 / Female 2 / Female 3 – Bare housing variants for different GM harness configurations
• Female 15CM / Female 15CM 1 / Female 15CM 2 / Female 15CM 3 – Pre-wired variants with 15cm leads

Installation Steps

1. Disconnect the vehicle battery
2. Remove the headlight assembly to access the harness connector
3. Release the locking tab and unplug the original 12-pin connector
4. Transfer terminals to the new housing or splice in the pre-wired variant
5. Reinstall the headlight and verify all functions (low/high beam, DRL, turn signal)

Frequently Asked Questions

Q: What GM models use a 12-pin headlight connector?
A: Common models include Chevrolet Malibu, Cruze, Equinox, Silverado, Buick Verano, Lacrosse, Cadillac ATS/CTS, and GMC Sierra/Terrain with LED or HID headlight systems. Verify connector shape before ordering.

Q: How do I identify which variant I need?
A: Compare the connector body shape, locking tab position, and terminal pitch of your existing OEM connector with the variant images. If unsure, contact us with your vehicle year/make/model.

Q: What fault codes indicate a headlight connector issue?
A: Common codes include B0080-series headlight circuit faults, DRL open circuit, and HID ballast communication errors on GM diagnostic systems.

Q: Are terminals included?
A: Yes, terminals are included with all variants.

Compatible Applications

• Chevrolet Malibu / Cruze / Equinox – LED headlight harness
• Chevrolet Silverado / Colorado – Multi-function headlight connector
• Buick Verano / LaCrosse / Envision – HID/LED headlight wiring
• Cadillac ATS / CTS / SRX – Adaptive headlight module connector
• GMC Sierra / Terrain / Acadia – Headlight assembly harness