Possible Cause

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD and 2019 Nissan NV2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

TCM does not receive the CAN communication signal from the ECM
- Harness or connectors (ECM to TCM circuit is open or shorted)
The engine speed is more less 150 rpm even if the vehicle speed is more than 10 km/h (7 MPH)
- Harness or connectors (ECM to TCM circuit is open or shorted)