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Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 40 (Engine Controls - Self-Diagnostics - 2.5) >> Diagnostic Tests >> DTC P1574: Automatic Speed Control Device (ASCD) Vehicle Speed Sensor >> DTC Confirmation Test
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DTC Confirmation Test

WARNING: This page is about a different car, the 2002 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: To conduct test procedure drive wheels must be lifted in the shop or prepare to drive vehicle.

To set DTC, start engine. Using scan tool, select DATA MONITOR. Drive vehicle at more than 25 MPH. If first trip DTC is detected, perform DIAGNOSTIC PROCEDURE . DTC will set when ECM detects a difference between 2 vehicle speed signals are out of specified range.