Toyota prius 3rd gen Turn signal Flasher Assembly (L55)

Toyota Prius 3 ^rd Generation (XW30)

Turn signal Flasher Assenbly Wiring Guide: DIY Pinout Diagram

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What is:The Turn Signal Flasher Assembly is an electronic or electromechanical component in a vehicle’s lighting system that controls the blinking of the turn signal and hazard lights. It ensures that the signal lights flash at a consistent rate when activated.

Turn signal Flasher Assenbly – Most Common in (XW30)

Toyota Prius 3rd Gen Turn Signal Flasher Assembly 81980-46010

Original Toyota Prius Turn Signal Flasher 81980-46010 Part View

Turn Signal Flasher Unit for Toyota Prius 2010–2015

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1. Introduction

The Toyota Prius 3rd generation Turn Signal Flasher Assembly (Part No. 81980-46010) is an electronic control unit responsible for operating the vehicle’s turn signal and hazard light functions. It regulates the flashing rate of the indicator lamps to ensure proper visibility and communication to other drivers. Unlike older mechanical flashers, this electronic type provides accurate timing and is compatible with modern low-current LED bulbs. Mounted within the instrument panel junction block, it interacts with the turn signal switch and hazard switch to manage signal operation. This unit ensures consistent, reliable flashing performance for the Prius’s safety and lighting systems.

Related parts and Accessories

• Turn Signal Switch (Combination Switch) – Controls the left and right signal operation from the steering column.
• Hazard Warning Switch – Activates all turn signals simultaneously for emergency signaling.
• Turn Signal Lamps (Front and Rear)– The bulbs or LED units that provide the visible flashing light.
• Indicator Relay or Circuit (within Body ECU) – Supports signal timing and feedback control.
• Fuses (TURN, HAZARD) – Protect the flasher circuit from electrical overload.
• Wiring Harness and Connectors – Provide electrical connections between the flasher unit, switches, and lamps.
• Instrument Cluster Indicator Light – Displays flashing signals on the dashboard for driver awareness.

2. Turn signal Flasher Assenbly Wiring Diagram & Pinout

A. Connector Location

• Turn signal Flasher Assenbly Mounting Location: located under the upper dashboard, just behind the central air vents and defroster duct, near the base of the windshield.
• Connector Type:
  • L55 (8 pin) Blue housing

B. Wiring Table

Turn signal Flasher Assembly (L55)

L55 TERMINALS OF Turn Signal Flasher Assembly CONECTOR

Terminal No	Symbol	Wiring (Color Code) & Color	Electrical Paths
1	IG (Ignition Positive)	(L) Blue	➔ 3A40 ⇔ 3B76 ➔ 2B16 ➤ (IG) 7.5A Blade Fuse [ECU-IG No.2]
2	LR	(G) Green	➔ 2A 17 ⇔ 2C 36 ➳ CA1 6 ➔ C5 1 [Front Turn Signal Light RH] ➔ 2A 17 ⇔ 2D 4 ➔ LS1 2 ➳ S18 3 (B) [Rear Combination Light Assembly RH] ➔ 2A 17 ⇔ 2A 36 ➔ L27 27 (B) [Combination Meter Assembly]
3	LL	(Y) Yellow	➔ 2A 22 ⇔ 2C 17 ➳ CA1 5 ➔ C3 1 [Front Turn Signal Light LH] ➔ 2A 22 ⇔ 2D 17 ➔ LR1 55 ➳ R17 3 (B) [Rear Combination Light Assembly LH] ➔ 2A 22 ⇔ 2A 42 ➔ L27 26 (B) [Combination Meter Assembly]
4	B (Battery Positive)	(B) Black	➳ AL214 ➔ 1 2 ➤ (BAT) 10A Blade Fuse [TURN & HAZ]
5	EL	(B) Black	➔ 3A 47 ⇔ 3A 71 ➔ L47 15 (TL) [Headlight Dimmer Switch Assembly]
6	ER	(P) Pink	➔ 3A 37 ⇔ 3A 61 ➔ L47 13 (TR) [Headlight Dimmer Switch Assembly]
7	E (Ground)	(G) Green	➔ 3A 41 ⇔ 3A 64 ➔ L93 4 ⬌ L93 3 ➔ ▼ L1 (Ground Point)
8	HAZ	(Y) Yellow	➔ 3A 38 ⇔ 3A 63 ➔ L7 3 (HAZ) [Main Body ECU] ➔ 3A 38 ⇔ 3A 14 ➔ L78 8 (F) [Integration Control and Panel Assembly]

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