| Suffix Example | Vehicle | Engine | |----------------|---------|--------| | 89661-0W590 | Toyota Camry 2007-2011 | 2AZ-FE (2.4L) | | 89661-33260 | Toyota Corolla 2005-2008 | 1ZZ-FE (1.8L) | | 89661-06A70 | Toyota Prius 2004-2009 | 1NZ-FXE (1.5L Hybrid) | | 89661-0P130 | Toyota RAV4 2006-2012 | 2AZ-FE | | 89661-30490 | Toyota Highlander 2008-2013 | 2GR-FE (3.5L V6) |
: Note the exact 10-digit code (e.g., 89661-3F160).
Read the print directly off the face sticker of your ECU casing (e.g., 89661-3A070 ).
Ensure both pins read above 12.0V when the key is turned to the ON position. toyota 89661 ecu pinout
Do you have the (the five digits after 89661) or the engine model you are working with? Engine Control Toyota 89661 Wiring Diagram - Pinterest
use a test light on ECU connector pins; it can draw too much current and fry the internal circuits. Use a digital multimeter.
Wiring mistakes can fry sensitive internal components instantly. This comprehensive guide will help you decode Toyota ECU part numbers, identify your specific connector configuration, and safely trace pinouts for your project. Understanding Toyota 89661 Part Numbers | Suffix Example | Vehicle | Engine |
: Switched 12V power inputs from the EFI Main Relay.
Power grounds for high-current components like fuel injectors and coil igniters. Ignition and Fuel Control
: The sticker on the ECU case will have the full number (e.g., 89661-XXXXX). Do you have the (the five digits after
The pinout for the supercharged 4A-GZE engine (found in the AE101 Corolla) provides a good example of how a performance MAP (Manifold Absolute Pressure)-based ECU differs from the AFM (Air Flow Meter) design shown above. The 89661-12790 uses a 22-pin (Y), 26-pin (X), and 16-pin (Z) connector layout.
❗ These are – using the wrong pinout can destroy the ECU or wiring.
