1nz Ecu Pinout May 2026
The Toyota 1NZ-FE is the legendary 1.5-liter inline-four engine found in the Toyota Prius (Gen 1 & 2), Yaris (Vitz), Echo, Scion xA, xB, and the Japanese-market Toyota bB. While reliable, electrical gremlins or swap projects often require a technician to interface directly with the Engine Control Unit (ECU) .
The 1NZ-FE uses a simple ON/OFF VVT-i. The ECU pin E5-12 (VVT Solenoid) sends a ground signal to advance cam timing. At idle, duty cycle is 0%; under load, it pulses. Actuator Outputs (Making the Engine Run) These pins are where the ECU controls the mechanical parts. Do not use a standard test light on these; use a Logic Probe or LED test light (low current). 1nz ecu pinout
| Sensor | Connector | Pin | Signal Wire | Voltage/Spec | | :--- | :--- | :--- | :--- | :--- | | | E6 (B) | 23 | Light Green | 3.0-3.8V @ idle; ~1.0V @ decel | | TPS (VTA) | E6 (B) | 22 | Blue/Red | 0.5V (Closed) to 4.5V (WOT) | | Engine Coolant Temp | E6 (B) | 20 | Red/White | 2.5V cold to 0.2V hot | | Cam Position (VVT-i) | E6 (B) | 9 | Yellow | 5V square wave | | Crank Position (NE) | E6 (B) | 8 | White | 5V square wave | The Toyota 1NZ-FE is the legendary 1