John.a

Hi, Im fairly new to these lexus vehicles Just need some info The ecu at the front passenger side near main fuse box which is the engine control unit has two connecting ports one large and one smaller, i want to know what as these two connectors for? Im assuming the larger connector is from.the main engine loom, so what is the smaller one? Please help 😅 Also can we get hold of these connectors themselves? The picture is an example