Toyota 89661 Ecu Pinout ^new^

2. High-Density Metal-Case Connectors (Late 90s – Early 2000s)

Ignition switch signal. Tells the ECU that the key has been turned to the "ON" position.

The Engine Control Unit (ECU) is the brain of your Toyota vehicle. Among the various ECU families manufactured by Toyota and Denso, part numbers starting with are the most common. Whether you are performing an engine swap (like dropping a 1JZ, 2JZ, or 1UZ into a different chassis), troubleshooting a misfire, or wiring a standalone piggyback system, understanding the 89661 ECU pinout is critical. toyota 89661 ecu pinout

Because "89661" covers so many different modules, use these steps to identify your exact wiring: Toyota 89661 ECU Pinout: Find 89661-50241 Pinouts

Engine load inputs. PIM is used for Manifold Absolute Pressure (MAP) sensors, while VG (V-Grounded) denotes Mass Air Flow (MAF) signals. VTA / VTA1: Throttle Position Sensor (TPS) signal. THW: Coolant Temperature Sensor input (Thermistor Water). THA: Intake Air Temperature Sensor input (Thermistor Air). The Engine Control Unit (ECU) is the brain

Toyota's main ECU families include (e.g., 89661-33C01, 89661-12P30, 89661-17300), Fujitsu (e.g., 89661-4A250, 89661-42680), and Mitsubishi/Bosch for some diesel models.

) is . If your car is in "limp mode," a guide to replacing ECU capacitors is often more valuable than the pinout itself, as it can resolve internal signal interference. Because "89661" covers so many different modules, use

A customer had a 2001 Toyota Tacoma that cranked but would not start. Using the 89661-33260 pinout:

| 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) |