DTC Detection Logic
WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
When ECM is not transmitting or receiving CAN communication signal of OBD (emission-related diagnosis) with TCM for 2 seconds or more.
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DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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U0101 |
LOST COMM (TCM) (Lost Communication with TCM) |
Diagnosis condition |
Ignition switch ON |
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Signal (terminal) |
CAN communication signal |
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Threshold |
ECM is not transmitting or receiving CAN communication signal of OBD (emission-related diagnosis) with TCM. |
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Diagnosis delay time |
2 seconds or more |
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