Autotecnica TY1321529 Ambient Light Sensor

Brand Autotecnica TY1321529
Connector Gender Male female
Terminal Gender Male
Fits Lexus and Toyota · 78 vehicles

OEM-spec replacement. A smart aftermarket alternative to expensive genuine components.

ISO/TS 16949 quality. Manufactured under strict quality management specifications.

Cross-references Autotecnica TY1321529, Standard Ignition EFL165 and 5S8091 for the same application. See all 4.

$41.39Free shipping
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Free returns within 60 days if it doesn't fit when fitment is verified.

Ambient Light Sensor for Toyota and Lexus

Autotecnica TY1321529 is an ambient light sensor built for select Toyota and Lexus vehicles that use an automatic lighting control system. It is a direct-fit electrical replacement for restoring proper light detection in models such as the Toyota Corolla, Matrix, RAV4, Prius, Highlander, Sequoia, Celica, Solara, and Lexus GS300, GS430, GS400, and IS300.

  • Male female connector gender with male terminal gender
  • OE-style replacement for ambient light sensing in automatic headlamp systems
  • Fits a wide range of Toyota Corolla and Lexus applications across multiple model years
  • Cross-references Standard Ignition EFL165 for the same application
  • Part number TY1321529 for ordering and catalog lookup

This ambient light sensor monitors surrounding light levels and sends the signal needed for automatic lighting operation. Autotecnica TY1321529 is manufactured to ISO/TS 16949 QMS specifications and is positioned as an aftermarket replacement for vehicles that require OEM-style electrical fit and function. It is a practical choice for drivers and technicians servicing Toyota Corolla, Matrix, and related Lexus and Toyota platforms where the original sensor has failed or become inconsistent.

Common Problems It Can Help Solve

  • Automatic headlights that do not switch on or off correctly
  • Inconsistent ambient light readings from a worn sensor
  • Lighting system faults caused by a failed electrical sensor
  • Restoring factory-style automatic light control response
  • Replacing a damaged or aging sensor on Toyota and Lexus vehicles

Installation Notes and Tips

Verify connector style and terminal gender before installation. Confirm vehicle fitment by year, make, and model, since TY1321529 is used across multiple Toyota and Lexus applications. For best results, inspect the connector and surrounding wiring for corrosion or damage before installing the new sensor.

Quality Assurance

Autotecnica manufactures this part under ISO/TS 16949 QMS specifications and backs it with a two-year, unlimited mileage warranty. It is intended as a replacement option for technicians and DIY owners who want an OEM-specification alternative for Toyota and Lexus ambient light sensor service.

This part fits 78 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypeNotes
2019ToyotaCorollaSESedan—
2018ToyotaCorolla———
2017ToyotaCorolla———
2016ToyotaCorolla———
2015ToyotaCorolla———
2014ToyotaCorolla———
2013ToyotaCorolla———
2013ToyotaMatrix———
2012ToyotaCorolla———
2012ToyotaMatrix———
2012ToyotaRAV4Sport——
2011ToyotaCorolla———
2011ToyotaMatrix———
2011ToyotaRAV4———
2010ToyotaCorolla———
2010ToyotaMatrix———
2010ToyotaRAV4———
2009ToyotaCorolla———
2009ToyotaMatrix———
2009ToyotaPrius———
2009ToyotaRAV4———
2008ToyotaCorolla———
2008ToyotaMatrix———
2008ToyotaPrius———
2007ToyotaHighlanderLimited——
2007ToyotaMatrix———
2007ToyotaPrius———
2007ToyotaSequoia———
2006ToyotaCorolla———
2006ToyotaHighlanderSport——
2006ToyotaMatrix———
2006ToyotaPrius———
2006ToyotaSequoia———
2005LexusGS300———
2005LexusGS430———
2005LexusIS300———
2005ToyotaCelica———
2005ToyotaCorolla———
2005ToyotaHighlander———
2005ToyotaMatrix———
2005ToyotaPrius———
2005ToyotaSequoia———
2004LexusGS300———
2004LexusGS430———
2004LexusIS300———
2004ToyotaCelica———
2004ToyotaCorolla———
2004ToyotaHighlander———
2004ToyotaMatrix———
2004ToyotaPrius———
2004ToyotaSequoia———
2003LexusGS300———
2003LexusGS430———
2003LexusIS300———
2003ToyotaCelica———
2003ToyotaCorolla———
2003ToyotaHighlander———
2003ToyotaMatrix———
2003ToyotaSequoia———
2002LexusGS300———
2002LexusGS430———
2002LexusIS300———
2002ToyotaCelica———
2002ToyotaCorolla———
2002ToyotaHighlander———
2002ToyotaSequoia———
2001LexusGS300———
2001LexusGS430———
2001LexusIS300———
2001ToyotaCelica———
2001ToyotaCorolla———
2001ToyotaHighlander———
2001ToyotaSequoia———
2000LexusGS300———
2000LexusGS400———
2000ToyotaCelica———
2000ToyotaCorolla———
2000ToyotaSolara———
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Autotecnica — TY1321529Standard Ignition — EFL1655S809189121-12010