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Scion 84210-12040 Back-Up Lamp Switch Assembly

2004-2013 Scion 8421012040

Customer Questions & Expert Answers (2)
84210-12040 Toyota Back-Up Lamp Switch Assembly Product Photo 1 of 9
  • Part Description
    Switch Assy, Back-Up Lamp
  • Part Name Code
    84210
  • Replaced By
    84210-52050
  • Manufacturer
    Toyota
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  • Q&A
  • Product Specifications

    BrandGenuine Scion
    Part Name Code84210
    Manufacturer Part Number84210-12040
    Part DescriptionSwitch Assy, Back-Up Lamp
    Item Dimensions14.0 x 11.9 x 2.2 inches
    Item Weight0.70 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerToyota
    SKU84210-12040
    WarrantyThis genuine Toyota part is covered by warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Trim & Engine Important vehicle option details
    2005-2013 Scion tCG|4 Cyl 2.4L, 4 Cyl 2.5L2ARFE, 2AZFE; AGT20L-ALFGKA, AGT20L-ALFGKK, AGT20L-ALTGKA, AGT20L-ALTGKK, ANT10L-ALMGKA, ANT10L-ALPGKA
    2004-2006 Scion xA4 Cyl 1.5L1NZFE; NCP61L-HHMNKA, NCP61L-HHPNKA
    2008-2013, 2004-2006 Scion xB4 Cyl 1.5L, 4 Cyl 2.4L1NZFE; NCP31L-DHMNKA, 2AZFE; AZE151L-FHMNKA, AZE151L-FHMNKK, AZE151L-FHPNKA, AZE151L-FHPNKK, NCP31L-DHPNKA
  • Customer Questions & Expert Answers

    Q:
    I just want to confirm I'm purchasing a correct part before placing an order.
    A:
    You can Select Your Vehicle to check if 84210-12040 fits your vehicle.
    Posted and answered by Toyota Parts Specialist Phil
    Q:
    How to Troubleshoot and Test a Back Up Light Switch on a 1997-2001 Toyota Solara? Posted by Anastacios B.
    A:
    With the key in On, put the shift lever in Reverse to check if back-up lights come on. If not, inspect the ignition switch, GAUGE fuse, bulbs, and wire harness. If lights stay on constantly, examine the wire harness. If only one light works, check its bulb and harness. To test the back-up light switch, disconnect the connector, unscrew the switch from the transaxle top, and use an ohmmeter to check continuity when the plunger is depressed/released. If the switch malfunctions, replace it.
    You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Toyota Parts Specialist Timur / Mar 21, 2025

Genuine Toyota Part 84210-12040, the Right Choice

Get the reliability of purchasing Toyota part # 84210-12040 Back-Up Lamp Switch Assembly. It is also referred to as Back Up Light Switch. The first option should always be to use OEM parts. Toyota manufactures these components with high quality material and rigorously tested with high reliability and durability. This part fits 2005-2013 tC, 2004-2013 xB, 2004-2006 xA.

ToyotaPartsDeal.com is a leading supplier of genuine Toyota parts and accessories, such as 8421012040 Back-Up Lamp Switch Assembly. In need of OEM Toyota parts? We offer a wide selection of genuine parts available that are competitively priced and trusted across the market. All parts sold on our website are covered by warranty. Combine that with our simple return policy and fast delivery service and your shopping experience will be stress-free and dependable. For detailed Scion parts information, click here.

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