DTC P0501: Range/Performance Problem in Vehicle Speed Sensor Circuit: General Description

The vehicle speed sensor (VSS) is attached to the transmission housing. The VSS outputs a pulsing signal for every revolution of the differential gear via the speedometer gear. The engine control module (ECM) receives the signal and determines the vehicle speed. If there are signal dropouts, the ECM detects a malfunction that may be caused by an open, a temporary open, or a short to ground. Based on the velocity ratio measured by the VSS and the CVT speed sensor, a malfunction is detected and a DTC is stored.