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DTC Detection Logic

WARNING: This page is about a different car, the 2010 Infiniti G37. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION CONDITION CHART

DTC (On board display) Trouble diagnosis name DTC detecting condition Possible causes
U1000 (100) CAN COMM CIRCUIT If ICC sensor integrated unit is not transmitting or receiving CAN communication signal for 2 seconds or more CAN communication system
NOTE: If "U1000" is detected, first diagnose the CAN communication system.
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