DTC P1720: VSS: Description

WARNING: This page is about a different car, the 2004 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If DTC P1720 is displayed with DTC U1000, U1001, first perform the trouble diagnosis for DTC U1000, U1001. Refer to "DTC U1001 CAN COMMUNICATION LINE ".

ECM receives two vehicle speed signals via CAN communication line. One is sent from VDC/TCS/ABS control unit (models with VDC), ABS actuator and electric unit (models without VDC) via "unified meter and A/C amp.", and the other is from TCM (Transmission control module). ECM uses these signals for engine control.