NISSAN 25360-79905 Door Switch Assembly

The genuine NISSAN 25360-79905 (Door Switch Assembly / SWITCH ASSY-DOOR) is a premium quality, original equipment manufacturer part that plays a vital role in the operation of the vehicle's convenience and safety systems. This electromechanical switch is mounted directly into the door frame and is designed to detect the open or closed status of the door.

Operating Principle and Function

The door contact switch is a simple yet critical circuit component. When the door closes, it mechanically depresses the switch plunger, opening (or closing, depending on the system design) the circuit. When the door is opened, the spring-loaded mechanism returns the switch to its default position, sending a signal to the Body Control Module (BCM). This signal activates several functions, including:

• Automatic illumination and shut-off of the interior cabin lighting.
• Open-door warning indicators on the instrument cluster (visual and acoustic warnings).
• Status monitoring for the factory anti-theft alarm system and central locking.
• Automatic headlight shut-off upon opening the door on specific vehicle models.

Technical Specifications

• Manufacturer: NISSAN (Original Equipment Manufacturer)
• Part Number: 25360-79905
• Component Type: Electromechanical push-button switch (with spring return)
• Rated Voltage: 12V DC (automotive low-voltage system)
• Housing Material: High-strength, heat- and UV-resistant plastic (ABS/PC) with a protective rubber boot against moisture and dust
• Connector Type: Vehicle-specific OEM pin connector for stable, corrosion-free contact

Typical Signs of Failure

Like all mechanical and electrical components, the door switch can wear out over time due to continuous physical operation and environmental exposure (moisture, dust, temperature fluctuations). The most common symptoms of failure include:

• Interior lights fail to turn on when opening the door, or remain continuously lit even when the door is closed.
• The instrument cluster falsely indicates an open door while driving.
• False alarm triggers when locking the vehicle, or the central locking immediately unlocks itself.
• Tears in the rubber dust boot, leading to moisture ingress and internal contact corrosion.

Genuine NISSAN parts guarantee a perfect fit, precise electrical resistance according to factory specifications, and a long service life, preventing the contact issues frequently encountered with aftermarket alternatives.