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Home >> Nissan-Datsun >> 2003 >> Altima Base, 2.5 A, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1574: ASCD Vehicle Speed Sensor >> Description

DTC P1574: ASCD Vehicle Speed Sensor: Description

The ECM receives 2 vehicle speed sensor signals via CAN communication line. One is sent from the combination meter, and the other is from the Transmission Control Module (TCM). The ECM uses these signals for ASCD control.