Component Description
WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
The ECM receives two vehicle speed signals via CAN communication line. One is sent from "unified meter and A/C amp." and the other is from TCM (Transmission control module). The ECM uses these signals for ASCD control. Refer to "AUTOMATIC SPEED CONTROL DEVICE (ASCD) " for ASCD functions.