Toyota prius 3rd Gen Camshaft Position Sensor "VVT Sensor (Intake Side)" Assembly (D18)

Toyota Prius 3 ^rd Generation (XW30)

Camshaft Position Sensor "VVT Sensor (Intake Side)" Assembly Wiring Guide: DIY Pinout Diagram

What is: The Camshaft Position Sensor (VVT Sensor) Assembly monitors the exact position and rotation speed of the camshaft, sending real-time data to the ECU. This information helps control Variable Valve Timing (VVT) for optimal engine performance. By adjusting valve timing based on sensor feedback, the system improves power, fuel efficiency, and emissions. A faulty sensor can cause rough idling, poor acceleration, and engine warning lights.

Camshaft Position Sensor Assembly (90919-05060)

Top view of Toyota 90919-05060 camshaft sensor assembly

Prius 3rd generation VVT camshaft sensor unit with connector port

Toyota Prius 3rd gen camshaft position sensor VVT sensor assembly 90919-05060 close-up view

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1. Introduction

      The  Toyota Prius 3rd Generation Camshaft Position Sensor (VVT Sensor) Assembly (90919-05060) is a precision engine management component that monitors the camshaft’s position and rotational speed. Its signals allow the Engine Control Unit (ECU) to accurately control Variable Valve Timing (VVT), ensuring efficient air-fuel intake and optimal combustion. By continuously adjusting valve timing based on driving conditions, it enhances fuel economy, reduces emissions, and improves overall engine responsiveness. This sensor is vital for smooth hybrid engine operation, especially during engine start-stop transitions. A malfunctioning sensor can lead to hard starting, reduced power, rough idling, and triggered warning lights.

Related parts and Accessories

• Engine Control Unit (ECU / ECM):-Receives camshaft position signals and adjusts VVT timing.
• Crankshaft Position Sensor:- Works together with the camshaft sensor for synchronized timing.
• Variable Valve Timing (VVT) Actuator / VVT Gear:-Adjusts camshaft angle based on ECU commands.
• VVT Oil Control Valve (OCV / VVT Solenoid):- Regulates oil flow to operate the VVT actuator.
• Timing Chain Assembly:-Coordinates camshaft and crankshaft rotation.
• Engine Wiring Harness:- Carries electrical signals to and from the sensor.
• Hybrid Control ECU:- Coordinates engine timing with hybrid system operation.

2. Camshaft Position Sensor Assembly Wiring Diagram & Pinout

A. Connector Location

• Camshaft Position Sensor Assembly Position: Located on the cylinder head near the intake camshaft, beside the timing chain area.


• Connector Type:
  • D18 (3 pin) Black housing

B. Wiring Table

Camshaft Position Sensor "VVT Sensor (Intake Side)" Assembly (D18)

D18 TERMINALS OF Camshaft Position Sensor "VVT Sensor (Intake Side)" Assembly CONECTOR

Terminal No	Symbol (Pin Definition)	Wiring (Color Code) & Color	Electrical Paths
D18-1	VVI+	(B) Black	➔ D28 76 (G2+) [Engine Control Module]
D18-2	VC	(R) Red	➔ D28 99 (VCV1) [Engine Control Module]
D18-3	VVI-	(W) White	➔ D28 122 (GL-) [Engine Control Module]

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