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Home >> Nissan-Datsun >> 2017 >> Maxima S >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (1 Of 4) >> DTC/Circuit Diagnosis >> DTC U0101: Can Comm Circuit >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

When ECM is not transmitting or receiving CAN communication signal of OBD (emission-related diagnosis) with TCM for 2 seconds or more.

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) with TCM.
Diagnosis delay time 2 seconds or more
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