LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Qr25DE >> DTC P1574: ASCD Vehicle Speed Sensor >> Component Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Description

The ECM receives two vehicle speed sensor 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.