Toyota 89661 Ecu Pinout ((exclusive)) Link

By understanding the Toyota 89661 ECU pinout, you'll be able to unlock the full potential of your Toyota vehicle's engine and take your tuning and modification skills to the next level.

💡 If you are performing a custom swap and your engine starts for one second then dies, you likely have a missing IGF (Ignition Confirmation) signal. Toyota ECUs require this "handshake" from the igniter to keep the fuel pump running. Safety and Best Practices toyota 89661 ecu pinout

When testing a running engine, insert your probe from the wire side of the connector to avoid stretching out the metal terminals. By understanding the Toyota 89661 ECU pinout, you'll

For more information on the Toyota 89661 ECU pinout, please consult the following resources: Safety and Best Practices When testing a running

| Pin | Wire Color | Function | Signal Type | |------|------------|-----------------------------|------------------| | A1 | W-B | Battery +B (memory) | 12V constant | | A2 | B-R | ECU Ground | 0V | | A3 | B | Main Relay control (output) | 12V when ON | | A8 | R | Injector #1 | Switched ground | | A10 | Y | Ignition coil #1 | 5V digital | | B8 | BR-Y | Crankshaft position sensor (+) | AC sine wave | | B11 | B-Y | Camshaft position sensor (G2) | Hall effect | | B24 | LG-R | APP sensor (pedal position) signal | 0.6-4.5V | | C5 | W | CAN High (diagnostic line) | 2.5-3.5V | | C6 | W-B | CAN Low | 1.5-2.5V |