Standard Ignition WP603 Windshield Wiper Switch

Wiper Switch for Toyota Sienna, Sequoia, and Venza

Standard Ignition WP603 is a direct-fit wiper switch for select Toyota vehicles with column-mounted applications. It includes windshield washer spray control and uses a 13-blade terminal layout for the specified factory connection style.

Key Features

• Direct, snap-fit attachment method for the listed applications
• Female connector with 1 polygon-shaped connector
• 13 blade terminals for factory-style electrical connection
• Plastic and metal construction
• Windshield washer spray included
• Displayed switch design

Detailed Description

Standard Ignition WP603 is a replacement wiper switch built for Toyota Sienna, Toyota Sequoia, and Toyota Venza models listed below. It is specified for column-mounted use on the applicable vehicles and is built with a direct, snap-fit attachment method to match the original switch interface. The female connector, single polygon connector shape, and 13 blade terminals support the factory wiring layout used in these applications. This part number, WP603, is a practical choice when replacing a worn or malfunctioning windshield wiper control on a Toyota Sienna, Sequoia, or Venza.

This part cross-references 846520E050 and SW8255 for the same application.

Vehicle Fitment

• Fits 2012-2020 Toyota Sienna, column mounted.
• Fits 2011 Toyota Sienna.
• Fits 2010 Toyota Sienna, from 2/10.
• Fits 2008 Toyota Sequoia, column mounted.
• Fits 2009-2011 Toyota Sequoia, w/ rear wiper.
• Fits 2009-2010 Toyota Venza, w/ rear wiper.

Common Issues This Part Can Address

• Intermittent or inoperative windshield wiper control
• Washer spray function not responding at the switch
• Wiper speed or mode selection not matching the selected position
• Electrical connection issues at the steering column switch
• Wear in the original switch mechanism

Installation Notes and Tips

Verify the connector shape, terminal count, and column-mounted configuration before installation. Compare the original switch to WP603 and confirm the vehicle year, model, and rear wiper or production-date notes where listed. For Toyota Sienna applications, confirm the 2010 build date note of from 2/10 before ordering.

Quality Assurance

Standard Ignition replacement parts are built to match the specified application details for factory-style service. Confirm all fitment and connector details against the vehicle before installation.