1kz Ecu Pinout

Ground tracks. E01 and E02 are heavy-duty grounds for high-current drivers like the spill valve. E1 and E2 are sensor grounds. Fuel Control Circuit

| Pin | Name | Description | Wire Color (Typical) | | :--- | :--- | :--- | :--- | | 1 | IGSW | Ignition Power | Black/White | | 3 | E01 | Engine Ground | Brown | | 5 | #10 | Injector 1 | Red | | 6 | #20 | Injector 2 | White | | 7 | #30 | Injector 3 | Green | | 8 | #40 | Injector 4 | Blue | | 9 | E1 | Sensor Ground | Brown | | 10 | +B | Battery Power | Black/Orange | | 12 | STA | Starter Signal | Black/White |

: Japanese Domestic Market (JDM) ECUs may have specific pins for features not found in export models (like speed limiters or specific immobilizer setups), often requiring extra attention during a swap.

Tells the ECU the engine is cranking so it can provide extra fuel for startup. 1kz ecu pinout

| Pin | Signal | |-----|--------| | D1 | SIL (Serial communication – Toyota scan tool) | | D4 | CG (Chassis ground) | | D5 | SG (Signal ground) | | D7 | K-Line (ISO 9141-2) – if OBD-II compliant | | D9 | +B (Battery power) | | D14 | TC (Diagnosis terminal – same as C7) | | D16 | +B (Switched ignition) |

Turn the key to the ON position. Connect your multimeter negative probe to the chassis frame and probe the and BATT pins. Both must read 11.5V to 12.6V . If +B has no voltage, inspect the EFI main relay and ignition switch circuit. Step 2: Test Sensor Reference Voltage

3. Step-by-Step Wiring for an Engine Swap (Standalone Configuration) Ground tracks

ECU HEADER PINOUT (Looking into the metal ECU case pins) +------------------------+ +------------------+ | 1 2 3 4 5 6 7 8 | | 1 2 3 4 5 6 | | 9 10 11 12 13 14 15 16 | | 7 8 9 10 11 12 | +------------------------+ +------------------+ HARNESS PLUG PINOUT (Looking directly at the plastic wire face) +------------------------+ +------------------+ | 8 7 6 5 4 3 2 1 | | 6 5 4 3 2 1 | | 16 15 14 13 12 11 10 9 | | 12 11 10 9 8 7 | +------------------------+ +------------------+ Numbered from left to right.

If your 1KZ-TE cranks but refuses to fire up, or dies immediately after starting, the SPV circuit is often the culprit.

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. Fuel Control Circuit | Pin | Name |

Intake Manifold Pressure Sensor (MAP Sensor) signal. Measures boost pressure to calculate fuel delivery.

The following table details the primary pins found on the KZN130 1KZ-TE ECU , typically organized into three main connectors (A, B, and C). Terminal Name Function Description +BF Power supply (Fused) A-2 BATT Constant battery power for ECU memory A-7 +B Switched ignition power A-9 IGSW Ignition switch signal B-1 THF Fuel temperature sensor signal B-2 PIM Intake manifold pressure signal (Boost) B-4 THW Engine coolant temperature sensor B-11 VC 5V reference power for sensors C-4 / C-17 NE+ / NE- Engine speed (Revolution) signals C-5 / C-18 TDC+ / TDC- Top Dead Center (Crank position) signals C-8 M-REL Main relay control signal C-11 SPV Spill Control Valve (Controls fuel injection volume) C-12 TCV Timer Control Valve (Controls injection timing) C-24 E1 Engine ground Key Systems and Troubleshooting

As he pored over the wiring diagrams, Tom noticed that the 1KZ-TE ECU had 35 pins, each with its own specific function. He started to make a list, categorizing the pins into groups: power and ground, fuel injectors, ignition coils, sensors, and so on.

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

Controls the advance and retard mechanism inside the pump by altering internal fuel pressure.