1kz Ecu Pinout [top] Jun 2026

Usually feature a 3-plug ECU setup (26-pin, 16-pin, 22-pin configuration).

Websites like ToyoDIY , PradoPoint , or HiluxSurf.co.uk frequently host high-resolution pinout images specific to different ECU part numbers (e.g., 89661-xxxxx).

Controls fuel injection timing by regulating internal pump pressure. 1kz ecu pinout

To read the codes manually, follow this procedure:

The 1KZ-TE is a 3.0L, 4-cylinder, SOHC turbo-diesel engine with electronically controlled injection. This system offers more precise fuel delivery and better cold-start performance than its mechanical predecessor, the 1KZ-T. Usually feature a 3-plug ECU setup (26-pin, 16-pin,

Check for 12V at the +B pin and toggling voltage at the SPV pin while cranking.

The 1KZ-TE ECU uses multiple connectors to interface with the engine harness. Connector configurations vary between vehicle models, with common setups including 26, 16, and 22-pin plugs. To read the codes manually, follow this procedure:

Unlike its fully mechanical predecessor (the 1KZ-T), the utilizes an electronically controlled injection pump. The ECU does not just monitor the engine; it actively calculates fuel volume, injection timing, spill valve operation, and automatic transmission shift points (on ECT models). Key Variants to Watch For

Found in the KZN185 Surf and 90 Series Prado, often featuring different pin locations for the immobilizer (if equipped). Key Pin Designations

Below is the breakdown of the standard 1KZ-TE ECU pinout (found in models like the KZN130, KZN185, and KZJ90/95).