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If you are a Toyota technician, a JDM engine swapper, or a DIY mechanic chasing an electrical gremlin, you have likely stumbled upon a silver box with the number stamped on the side. The Toyota 89661 series ECU (Engine Control Unit) is one of the most common engine computers found across a vast range of Toyota vehicles, from the legendary Land Cruiser and Hilux to the Corolla, Camry, and RAV4.
a guaranteed replacement for all 1989 Toyota Truck PCM models with a 2.4L engine size and matching part number 89661-35150. Flagship One Inc toyota 89661 ecu pinout
Most Toyota 89661 ECUs utilize a standardized physical form factor: four rectangular connectors. Toyota refers to these as , Connector B , Connector C , and Connector D (sometimes E on older units). However, not all ECUs use all four; a basic Corolla ECU might only use A, B, and C, while a Land Cruiser ECU will use all four. If you are a Toyota technician, a JDM
On older ECUs (pre-2003), connectors are labeled E5 , E6 , E7 . On newer ones, they are A , B , C , D . Flagship One Inc Most Toyota 89661 ECUs utilize
Best for 1JZ and 2JZ JDM pinouts.
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