1kz Ecu Pinout -

: Points to a malfunction in the crank position sensor or its wiring to pins TDC+ and TDC-. Code 13 (NE Signal)

| Pin | Wire Color | Signal | Description | |-----|------------|--------|--------------| | B1 | B-W | M-REL | Main relay control (ECU triggers relay) | | B2 | L | FAN | Radiator fan relay control | | B3 | G-R | EGR | EGR vacuum switching valve (VSV) | | B4 | R | VSV1 | Fuel pressure VSV (spill control valve) | | B5 | B-Y | VCV | Spill control valve (fuel pump) | | B6 | L-R | TCV | Timing control valve (injection timing) | | B7 | Y | EDU | Injector driver ground (to EDU – early models) | | B8 | W | EDU+ | Injector driver power (to EDU) | | B9 | B-O | ELS | Electrical load signal (from alternator) | | B10 | G | SPD | Vehicle speed sensor (from combination meter) | | B11 | W-B | W | Check engine light (warning lamp) | | B12 | R-B | TACH | Tachometer output | | B13 | G-B | FPR | Fuel pump relay (lift pump – some models) | | B14 | L-B | STP | Stop light switch (brake input) | | B15 | R-W | +BM | Backup power for ECU memory (constant +12V) | | B16 | B | E01 | Power ground (injector driver) |

If you are swapping a 1KZ-TE into an older Hilux (like a 3L or 5L conversion) or a custom rig, you only need a handful of wires connected to make the engine start and run: 1kz ecu pinout

: Spill Control Valve (critical for fuel injection timing and starting). Performance & Troubleshooting

Because wiring colors can vary by year (e.g., 1993 vs. 1999) and model (Hilux vs. Prado), it is crucial to consult specific manuals. : Points to a malfunction in the crank

for a particular year and model Compare different ECU part numbers (e.g., 89661-35xxx) Troubleshoot specific codes (like code 12 or 13)

A common mistake during wiring harness splices is reading the pin chart backwards. 1999) and model (Hilux vs

If you have a 1KZ-TE ECU on your bench, look at the connector ends.

Check Engine Light (Malfunction Indicator Lamp / MIL) output to instrument cluster.

You can troubleshoot electrical issues by checking voltages at these pins or reading DTCs via the (B-7) terminal when bridged with ground. Code 12 (TDC Signal)

Connects to crucial sensors like MAP, Throttle Position (TPS), and Coolant Temp.