Hyundai / Kia 14-Pin Waterproof Headlight Wire Harness Connector – OEM MG656862 / MG656862-5 | Female

The OEM MG656862 / MG656862-5 is a 14-pin waterproof female connector used in Hyundai and Kia advanced headlight assembly harnesses. The MG656862 is the base part number; MG656862-5 is a variant with a different sealing or locking configuration. The 14-pin configuration integrates LED driver, AFS stepper motor, headlight leveling, DRL, turn signal, and CAN bus circuits for Hyundai/Kia advanced headlight systems. The waterproof sealed design protects against moisture ingress in the headlight assembly environment. Available bare or with 15cm pre-wired leads.

Key Specifications

• OEM Part Numbers: MG656862 / MG656862-5
• Pin count: 14-pin
• Gender: Female
• Sealing: Waterproof (IP67-equivalent)
• Housing material: High-temp nylon (PA66)
• Available as: Bare connector or 15cm pre-wired leads
• Application: LED headlight, AFS, headlight leveling harness
• Compatible brands: Hyundai, Kia

14-Pin Headlight Circuit Breakdown

• Pins 1–2: LED driver power supply and ground
• Pins 3–4: LED driver CAN bus (CAN High / CAN Low)
• Pins 5–6: AFS stepper motor control (A / B phase)
• Pins 7–8: Headlight leveling motor control
• Pin 9: DRL (Daytime Running Light) circuit
• Pin 10: Turn signal circuit
• Pin 11: Position / tail light circuit
• Pins 12–13: Headlight module LIN bus
• Pin 14: Headlight module wake-up / enable signal

Compatible Hyundai / Kia Models

• Hyundai Tucson (NX4, 2020–present): LED headlight with AFS option
• Hyundai Sonata (DN8, 2019–present): LED headlight with AFS
• Hyundai Santa Fe (MX5, 2020–present): LED headlight option
• Kia Sportage (NQ5, 2021–present): LED headlight with AFS option
• Kia K5 / Optima (DL3, 2019–present): LED headlight with AFS
• Kia Sorento (MQ4, 2020–present): LED headlight option

Common Fault Codes (Hyundai/Kia GDS / KDS)

• B1600–B1699: AFS stepper motor circuit fault
• B1700–B1799: Headlight leveling motor circuit fault
• B2800–B2899: LED driver module fault
• U0140: Lost communication with Body Control Module (if headlight CAN bus is affected)

Frequently Asked Questions

Q: What is the difference between MG656862 and MG656862-5?
A: MG656862 is the base connector housing. MG656862-5 is a variant with a “-5” suffix indicating a different sealing configuration or locking tab variant. Match the suffix to your original OEM connector housing.

Q: My Hyundai/Kia headlight works but AFS doesn’t — is this the connector?
A: Yes. Corroded AFS stepper motor circuit pins (pins 5–6) cause AFS failure while LED illumination continues to work. This is a common symptom of partial connector corrosion on the MG656862 connector.