Volkswagen Golf Mk4 Rear Tail Light Wiring Harness Cable Left N/S 1J6945111T

Volkswagen Golf Mk4 Rear Tail Light Wiring Harness Cable Left N/S is an original electrical system component designed to support the rear lighting on the driver's side. Thanks to its factory-fit design, it ensures a stable electrical connection and proper operation of all lamp functions. It is a practical solution for repairs following a collision, connector damage, or issues with grounding and intermittent light failure.

Specifications and technical data

• SKU: 1J6945111T-2
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 1J6945111T
• Substitutable numbers: 1J6945111T, 1J6 945 111 T
• Location on the vehicle: Rear, Left
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the electrical system

The presented wiring harness is a component dedicated to the rear lamp on the left side of the fourth-generation Volkswagen Golf. It is responsible for transmitting electrical signals to individual lighting circuits, such as the position light, brake light, turn signal, or reversing light, depending on the lamp configuration.

Thanks to the factory wire routing and properly selected connectors, installation is orderly, which reduces the risk of insulation abrasion, loose contacts, or accidental short circuits within the rear part of the bodywork.

Construction and fitment for Volkswagen

The harness belongs to the Wires, harnesses, and connectors group, meaning it was designed as an integral part of the vehicle's electrical system. The connectors used are prepared for direct connection to the tail lamp and the rest of the body wiring, without the need to modify the factory electrical system.

The layout of the wires and the shape of the connectors are adapted to the geometry of the rear body of the Golf Mk4, which facilitates routing the harness through the original mounting points and minimizes the time required to replace the damaged component.

Service application and benefits of installation

Replacing the rear left tail light wiring harness is particularly recommended in situations where the following occur:

• intermittent light failure in the tail lamp,
• corrosion or overheating of contacts in the connector,
• mechanical damage to wires after a collision or bodywork repairs,
• installation errors following previous non-factory modifications.

Using an original harness allows for restoring the stability of the lighting system, which has a direct impact on driving safety and the vehicle's compliance with technical inspection requirements.

Characteristics of the used product

The item comes from dismantling, which means it is a used part that retains its factory construction and wiring layout. This type of component is a good choice for maintenance repairs when you want to maintain the original wiring path and compatibility with other Volkswagen electrical components.

The harness can be an attractive alternative to new replacements, especially where connector fitment and compliance with the factory electrical diagram are crucial.

Expanding your Volkswagen electrical system upgrades

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Volkswagen and need other elements from the same group, such as additional harnesses, wire sections, or lamp connectors, check out the available parts in the Volkswagen wires, harnesses, and connectors category.

Additional knowledge and inspiration

When working on the electrical system, many drivers also decide to refresh the car's interior, install better seats, a steering wheel, or a multimedia system. If you are considering such modifications and want to optimize costs, it is worth checking out the guide Premium interior for half the price: second-hand seats, steering wheels, and multimedia, which discusses the practical aspects of selecting and installing used equipment components.