1kz Ecu Pinout [best] <90% CERTIFIED>

The Toyota (3.0L Turbo Diesel) ECU pinout is critical for engine swaps and diagnostics, but it varies slightly depending on whether your engine is from an early (e.g., KZN130 Hilux Surf) or later model (e.g., Hilux Tiger or KZN165) Standard 1KZ-TE ECU Pinout Reference

• Pin 1: +B (12V)
• Pin 2: E (Ground)
• Pin 3: TXD (Data to immobilizer computer)
• Pin 4: RXD (Data from immobilizer computer)

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What you can ignore for a pure mechanical runner (no AC, no PS idle-up): The Toyota (3

(B-14) connect to correction resistors on the injection pump to fine-tune fuel delivery based on pump manufacturing tolerances. Diagnostic Trouble Codes (DTC) Pin 1: +B (12V) Pin 2: E (Ground)

⚠️ Pinouts vary by market (JDM, Euro, General) and transmission (A/T vs M/T). Always verify with your exact ECU part number (e.g., 89661-3A230).

Diagnostic test terminals (bridge TE1 to E1 to read blink codes). SP1 (Speed Sensor):