This is the Insight transmission sitting on the bench. It too is pretty unremarkable. It’s just like any other transmission. The sensor on the left is the vehicle speed sensor (VSS). It generates a 0-to-5 volt pulse as the output shaft spins. The faster the output shaft (and wheels) spin, the more frequent the pulses become. The VSS output is used for the speedometer (eliminating the speedometer cable) and for the engine control computer. This sensor is not unique to the Insight. All modern Honda’s use a similar sensor.