Toyota Rav4 Mk2 Rear Door Wiring Loom Electric Wire Harness Left N/S 8215342071

Toyota Rav4 Mk2 Rear Door Wiring Loom Electric Wire Harness Left N/S is an original electrical installation component designed for installation on the driver's side in the rear part of the vehicle body. This used, fully functional door wiring harness with connectors allows for the restoration of proper door electrical operation, such as power supply to modules, central locking control, or comfort equipment support.

Specifications and technical data

• SKU: RHD-8215342071
• Mark: Toyota
• Condition: Used
• OEM Part Number: 8215342071
• Substitutable numbers: 8215342071, 82153-42071
• Location on the vehicle: Rear, Left
• Category: Other Starters, Alternators, ECUs & Wiring

Purpose and vehicle placement

The presented wiring harness is dedicated for installation in the rear left door of the second-generation Toyota RAV4. It runs from the body to the door, creating a flexible electrical connection between the vehicle's main installation and the receivers located in the door. Its placement in the rear zone, on the left side, makes this component responsible for stable power supply and signal transmission in one of the sections of the installation most exposed to movement and bending – in the grommet between the pillar and the door.

Construction and technical function

The door wiring harness consists of a set of wires with appropriately selected cross-sections, insulation, and factory-installed connectors matched to the Toyota installation. Thanks to this:

• it ensures a proper electrical connection between the body and the door,
• it minimizes the risk of voltage drops and signal interference,
• it enables trouble-free connection of factory receivers in the door. The original design of the harness allows for maintaining compliance with the factory electrical diagram, which facilitates diagnostics and subsequent maintenance of the installation.

Benefits of using an original wiring harness

Using a factory door wiring harness in the Toyota RAV4 II brings a number of practical benefits:

• Secure fit – the length of the wires, the arrangement of connectors, and mounts correspond to factory solutions, which facilitates installation in original mounting points.
• Stable installation operation – the correct wire diameter and insulation selection promote reliable power supply to electrical components in the door.
• Reduction of modifications – no need for cutting, soldering, or adapting universal wires reduces the risk of subsequent failures. For workshops and users, this means faster replacement, lower risk of installation errors, and maintaining consistency with the vehicle's factory installation.

Condition and service application

The component comes from disassembly and is intended for service applications in vehicles where typical symptoms of door wiring harness damage have occurred, such as periodic power outages, lack of response of selected functions in the door, or visible insulation cracks in the grommet. Replacing the complete harness is the preferred solution over temporary repairs of individual wires, as it restores the integrity of the entire installation section. If you are planning a comprehensive repair or modernization of the rear body zone in your Toyota and need other elements from the same group, such as additional harnesses, connectors, or electrical installation components, check the available parts in the Other Toyota category.

Additional information and technical support

Before purchasing, it is worth comparing the connector configuration and the harness routing with the component currently installed in the vehicle to confirm full compatibility. In case of doubt, referring to Toyota service documentation or consulting an automotive electrician may also be helpful. For those interested in a broader context of component selection and operation in sports and production vehicles, an article discussing the structural and operational differences between standard and sports versions may be useful – you can find it here: Audi RS vs other models – what is hidden under the hood and chassis?.