Toyota prius 3rd gen Windshield Wiper Motor Assembly (A35)

Toyota Prius 3 ^rd Generation (XW30)

Windshield Wiper Motor Assembly Wiring Guide: DIY Pinout Diagram

What is: A vehicle windshield wiper motor assembly is an electric unit that powers the windshield wipers. It converts electrical energy into mechanical motion, moving the wiper arms back and forth to clear rain, dust, and debris from the windshield. The assembly usually includes the motor, gears, and linkage, ensuring smooth and reliable wiper operation for safe driving visibility.

Windshield Wiper Motor Assembly (85110-47190)

Side view of Prius 85110-47190 wiper motor assembly

Electrical connector of Prius windshield wiper motor

Toyota Prius 3rd gen windshield wiper motor assembly front view

❮ ❯

1. Introduction

      The  Toyota Prius 3rd Generation Windshield Wiper Motor Assembly (85110-47190) is a key component designed to ensure clear forward visibility in all weather conditions. This electric motor assembly drives the front windshield wipers with smooth, consistent motion, helping to remove rain, dust, and road debris effectively. It works in coordination with the wiper switch, body ECU, and wiper linkage to provide multiple speed settings, including intermittent operation. Built for reliability and low noise, the assembly supports the Prius’s focus on efficiency and safety. Proper operation of this motor is essential for safe driving, especially during heavy rain or poor visibility conditions.

Related parts and Accessories

• Windshield Wiper Switch:-Allows the driver to select wiper modes such as off, intermittent, low, and high speed.
• Body ECU (Body Control Module):-Controls wiper operation logic, timing, and coordination with other vehicle systems.
• Wiper Linkage Mechanism:-Transfers rotational motion from the motor into the back-and-forth movement of the wiper arms.
• Windshield Wiper Arms:-Hold the wiper blades and apply pressure against the windshield for effective cleaning.
• Windshield Wiper Blades:-Rubber blades that physically wipe away water, dust, and debris from the windshield.
• Windshield Washer Motor:-Pumps washer fluid from the reservoir to help clean stubborn dirt from the windshield.
• Washer Fluid Reservoir:-Stores the washer fluid used for windshield cleaning.
• Washer Spray Nozzles :-Spray washer fluid evenly onto the windshield surface.
• Wiring Harness:-Supplies electrical power and control signals between components.
• Wiper Relay:-Controls high current flow to the wiper motor safely.
• Wiper Fuse:-Protects the wiper circuit from electrical overload or short circuits.

2. Windshield Wiper Motor Assembly Wiring Diagram & Pinout

A. Connector Location

• Windshield Wiper Motor Assembly Position: The windshield wiper motor assembly is mounted on the firewall under the cowl panel, just below the front windshield.




• Connector Type:
  • A35 (5 pin) Black housing

B. Wiring Diagram

C. Wiring Connector Pinout Table

A35 TERMINALS OF Windshield Wiper Motor Assembly CONECTOR

Terminal No	Symbol (Pin Definition)	Wiring (Color Code) & Color	Electrical Paths
A35-1	+1	(R) Red	➔ AL4 6 ➳ L48 3 (+1) [Windshield Wiper Switch Assembly]
A35-2	B	(LG) Light Green	➔ 2C 4 ➤ (IG) [WIP] 30A Blade Fuse
A35-3	+S	(G) Green	➔ AL4 12 ➳ L48 1 (+S) [Windshield Wiper Switch Assembly]
A35-4	+2	(W) White	➔ AL4 5 ➳ L87 8 ⬌ L87 9 ➔ L48 4 (+2) [Windshield Wiper Switch Assembly]
A35-5	E	(W-B) White/Black	➔ A56 10 ⬌ A56 8 ➔ ▼ A1 (Ground Point)

Go back

3. Quick Pin Summary – A35 Connector

5-Pin Black Connector

• A35-1 +1 (Low-Speed Drive Signal):
  Supplies power for low-speed wiper motor operation. Controlled by the windshield wiper switch through the body control logic. Connected to Windshield Wiper Switch Assembly, Connector L48, Terminal (+1).
• A35-2 B (Battery Power Supply) :
  Provides main battery power to the wiper motor. Power is routed through the WIP fuse and ignition circuit. Connected to the WIP 30A fuse via IG circuit.
• A35-3 +S (Intermittent / Control Signal) :
  Used for intermittent and timing-based wiper control. Signal is managed by the wiper switch and Body ECU coordination. Connected to Windshield Wiper Switch Assembly, Connector L48, Terminal (+S).
• A35-4 +2 (High-Speed Drive Signal) :
  Supplies power for high-speed wiper motor operation. Activated when high-speed mode is selected on the wiper switch. Connected to Windshield Wiper Switch Assembly via Connector L48, Terminal (+2).
• A35-5 E (Ground / Earth) :
  Provides ground reference for the wiper motor circuit. Ensures stable and safe electrical operation. Connected to vehicle ground point A1.

Quick Note: The A35 connector is a 5-pin interface for the windshield wiper motor assembly, controlling power supply, speed selection, intermittent operation, and grounding. Battery power is supplied through the WIP fuse, while separate signals from the wiper switch control low- and high-speed operation. Intermittent wiping is coordinated by the Body ECU. A proper ground ensures reliable and safe wiper performance in all weather conditions.