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Home >> Infiniti >> 2023 >> QX55 Essential >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (1 Of 5) >> DTC/Circuit Diagnosis >> DTC U0101: Can Comm Circuit >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

U0101

00

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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