1kz Ecu Pinout Portable

1KZ-TE ECU pinout

Understanding the is essential for engine swaps, troubleshooting, or installing performance chips like a Unichip . The 1KZ-TE is a 3.0L turbo diesel engine common in Toyota Hilux, Prado, and HiAce models. Technical Overview

Part 5: Swapping a 1KZ-TE into Another Vehicle – Pinout Guide

• Locate the TE1 (Test) pin (often on Connector #2 or a sub-connector).
• Locate the E1 (Ground) pin.
• Bridge them with a paperclip.
• Turn the ignition ON (do not start).
• Count the flashes of the Check Engine Light on the dash.

Without the correct pinout:

When reviewing your specific 1KZ unit, check for these common differences: Early vs. Late Models 1kz ecu pinout

| Pin | Wire Color | Signal | Description | |-----|------------|--------|--------------| | A1 | B-R | +B1 | Main relay power input | | A2 | B-Y | +B | Main relay power input | | A3 | B-W | E1 | ECU ground (power) | | A4 | W-B | E2 | ECU ground (sensor return) | | A5 | R-L | #10 | Injector 1 | | A6 | R | #20 | Injector 2 | | A7 | R-W | #30 | Injector 3 | | A8 | R-B | #40 | Injector 4 | | A9 | G-B | VTA | TPS (throttle position sensor) | | A10 | L-R | IDL | TPS idle contact | | A11 | B-O | VCC1 | TPS +5V reference | | A12 | B | E2G | TPS ground | | A13 | W | THW | Engine coolant temp sensor | | A14 | R-B | THA | Intake air temp sensor | | A15 | G-R | VAF | Air flow meter signal | | A16 | B-Y | KS | Knock sensor | | A17 | L-Y | NE+ | Crank position sensor (+) | | A18 | B | NE- | Crank position sensor (-) | | A19 | G-O | G+ | Cam position sensor (G1) | | A20 | B-W | G- | Cam position sensor ground | | A21 | B-R | STA | Starter signal (from ignition switch) | | A22 | R-Y | NSW | Neutral start switch (A/T) / Clutch (M/T) | | A23 | G-W | A/C | A/C request signal | | A24 | L | PS | Power steering oil pressure switch | 1KZ-TE ECU pinout Understanding the is essential for

Early Type (Pre-1996 – 2-plug ECU)

• Battery + (B+) / Main power feed — constant 12V (often fused at under-hood fuse/relay).
• IG (Ignition/switched 12V) — ECU power when key ON.
• EFI Main Relay (power feed switched to injectors, sensors).
• Ground (GND) — chassis/engine ground pins; multiple ground pins often present (E/GND, IG GND).