Standard Ignition EFL165 Automatic Headlight Sensor

Automatic Headlight Sensor for Toyota and Lexus

Standard Ignition EFL165 is an automatic headlight sensor built for vehicles that use a plug-in, square connector design with a 3-blade male terminal layout. It is a direct-fit electrical sensor for select Toyota and Lexus applications, including Toyota Corolla, Camry, RAV4, Prius, 4Runner, Matrix, Highlander, Celica, Solara, and Lexus GS300, IS300, and RX300.

Use EFL165 when you need a replacement automatic headlight sensor that matches the original connector style and vehicle application. This part cross-references AHS504 and FC755 for the same application.

Key Features

• Automatic headlight sensor for OE-style replacement
• Female connector with square plug-in design
• 3 male blade terminals for factory-style electrical connection
• Built for select Toyota and Lexus models
• Standard Ignition EFL165 part number for easy identification

Detailed Product Overview

Standard Ignition EFL165 is designed for vehicles equipped with an automatic lighting control sensor that communicates with the headlamp system. The sensor uses a single female connector, square housing, and 3-terminal blade interface to match the original electrical layout on supported applications. For drivers searching for an automatic headlight sensor for Toyota Corolla, Toyota Camry, or Lexus RX300, this part provides a direct replacement option that aligns with the factory connector style.

Compatible With 1998-2010 Toyota Corolla, 2008-2011 Toyota RAV4, 2004-2009 Toyota Prius, 2003-2009 Toyota 4Runner, 2001-2007 Toyota Highlander, 2003-2010 Toyota Matrix, 2000-2005 Toyota Celica, 1998-2001 Toyota Camry, 1999-2001 Toyota Solara, 1998-2005 Lexus GS300, 2001-2005 Lexus IS300, and 1999-2003 Lexus RX300.

What This Sensor Helps Address

• Headlights that do not switch on automatically in low-light conditions
• Intermittent automatic lighting response
• Faulty ambient light sensing input to the lighting system
• Connector mismatch during sensor replacement
• Restoring factory-style automatic headlamp operation on supported Toyota and Lexus vehicles

Installation Notes and Tips

Verify the connector shape, terminal count, and vehicle application before installation. This sensor uses a plug-in connection with a square female connector and 3 male blade terminals, so matching the original harness and sensor interface is important. Confirm the part number EFL165 against the existing unit and vehicle service information before replacement.

Quality Assurance

Standard Ignition supplies electrical replacement parts for factory-style fit and function on listed applications. EFL165 is cataloged for specific Toyota and Lexus fitments to support accurate replacement selection.