WARNING: This page is about a different car, the 2018 Nissan NV3500 HD, 2018 Nissan NV2500 HD, and 2018 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.
DTC
CONSULT screen items
(Trouble diagnosis content)
DTC detecting condition
U1000-01
CAN COMM CIRCUIT
[-]
When air bag diagnosis sensor unit is not transmitting or receiving CAN communication signals for 2 or more seconds.