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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 485 (Engine Control System (VK56VD) DTC/Circuit Diagnosis (1 Of 6)) >> DTC/Circuit Diagnosis >> DTC U0101: Can Comm Circuit >> DTC Description >> DTC Detection Logic

DTC Detection Logic

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.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

U0101

LOST COMM (TCM)

(Lost Communication with TCM)

Diagnosis condition

Ignition switch ON

Signal (terminal)

CAN communication signal

Threshold

ECM is not transmitting or receiving CAN communication signal of OBD (emission related diagnosis)

Diagnosis delay time

TCM for 2 seconds or more