Volkswagen VW Passat B6 Door Harness Loom Cable Wiring Rear Left N/S 3C4971693KJ

Volkswagen VW Passat B6 Door Harness Loom Cable Wiring Rear Left N/S is an item from the Cables, harnesses and connectors group, designed to support the electrical system in the rear left door. It enables the correct connection of factory electrical receivers in the door to the vehicle's main wiring, ensuring stable operating parameters for comfort and safety systems. As a Volkswagen brand part, it provides a tailored service solution for users who value compliance with factory specifications.

Specifications and technical data

• SKU: 3C4971693LP
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 3C4971693LP
• Substitutable numbers: 3C4971693LP, 3C4 971 693 LP, 3C4971693KJ, 3C4 971 693 KJ
• Location on the vehicle: Rear, Left
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function of the wiring harness

The presented wiring harness is designed for installation in the rear left door area, where it is responsible for transmitting signals and power between the body modules and the components located in the door. This includes, among others, circuits related to comfort, control, and signaling, which allows for maintaining the full functionality of the door equipment in accordance with the vehicle manufacturer's requirements.

Thanks to appropriately selected wire cross-sections, proper insulation, and factory connectors, the harness ensures stable electrical connections and reduces the risk of interference in system operation. The design, intended for a specific location on the vehicle, facilitates routing the installation through original mounting points without the need for modifications.

Benefits of using an original Volkswagen wiring harness

Using a harness dedicated to a specific model and location on the vehicle allows for maintaining the consistency of the electrical system and avoiding problems typical of universal solutions. Key advantages include:

• factory-matched length and layout of wires to the geometry of the rear left door,
• use of original connectors compatible with the body wiring,
• maintaining the clarity of the installation during diagnostics and potential future repairs,
• reducing the risk of assembly errors resulting from DIY harness fabrication.

An element configured in this way allows for more predictable operation of electrical systems and facilitates cooperation with factory service procedures.

Assembly and operational characteristics

The wiring harness intended for the rear left door is prepared for operation in conditions typical for a body zone exposed to temperature changes, humidity, and the movement of door components. Proper wire routing and the use of correct mounting points limit mechanical stress, which promotes a longer service life of the installation.

The used part allows for an economical repair of the electrical system while maintaining compliance with factory solutions. In many cases, this is a beneficial alternative to makeshift repairs, such as soldering or extending individual wires, which can lead to unstable connections or diagnostic problems.

Application in service and diagnostics

Replacing the complete harness in the rear left door is particularly recommended in situations where there has been mechanical damage to the wires, insulation breakage, or problems with contact corrosion. Using a ready-made element from the Cables, harnesses and connectors group simplifies the service process because it eliminates the need to recreate the original wire routing and select connectors.

This solution is also beneficial from the point of view of computer diagnostics – maintaining the factory structure of the installation facilitates the interpretation of errors stored in controllers and allows for faster localization of any irregularities in the operation of systems associated with the door.

If you are planning a comprehensive repair or upgrade of the door zone in your Volkswagen and need other elements from the same group, such as door harnesses, transition connectors, or body wire sections, check the available parts in the Volkswagen cables, harnesses and connectors category.

For those interested in the wider use of dismantled components in vehicle upgrade projects, including in the area of electrical installation, an article describing the practical aspects of tuning using used parts may be helpful – you can find it here: Emotions and design – visual and mechanical tuning of a Seat using dismantled components.