Controls the amount of fuel injected into the cylinders. This is a high-priority signal for engine starting and idling. TCV (Timing Control Valve):
The official Toyota 1KZ-TE Engine Repair Manual (RM710E) is the most authoritative source for full electrical schematics. You can often find PDF previews or community guides on platforms like Pinterest or Scribd . 1kz ecu pinout
| Pin | Signal | Description | |-----|--------|--------------| | C1 | SL1 | Lock-up solenoid | | C2 | SL2 | Shift solenoid 2 | | C3 | SL3 | Shift solenoid 3 | | C4 | SL4 | Accumulator / line pressure solenoid | | C5 | OD1 | Overdrive switch input | | C6 | OD2 | Overdrive indicator light | | C7 | L1 | L position switch | | C8 | L2 | 2 position switch | | C9 | L3 | 3 position switch | | C10 | L4 | N position switch | | C11 | L5 | R position switch | | C12 | NCO | Transmission fluid temp sensor signal | | C13 | ECT | ECT ground | | C14 | +B | Shift solenoid power | | C15 | SLN | Linear solenoid (throttle pressure) | | C16–22 | — | Various grounds + unused | Controls the amount of fuel injected into the cylinders
This ECU has : A (24-pin), B (22-pin), C (22-pin), D (16-pin – OBD-II diagnostic port, not always fully pinned). You can often find PDF previews or community
. While pinouts can vary slightly between models like the KZN130 Surf, KZN165 Hilux, and KZN185 Prado, the core signal architecture remains consistent across early and late models. Core Pinout Architecture
Pin A3 (ground) corrodes. Symptoms include random stalling and low injection pump pressure.
For highly specific wiring tasks, such as rewiring a custom harness, refer to detailed technical guides on platforms like Scribd or Slideshare that provide full terminal maps and expected voltage waveforms. To help you further, could you tell me: