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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1176 (Engine Control System - DTCS U0101 To P0175 (VK56DE)) >> DTC U0101: Can Comm Circuit >> On Board Diagnosis Logic

On Board Diagnosis Logic

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

This self-diagnosis has the one trip detection logic  .

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
U0101 0101 Lost communication with TCM When ECM is not transmitting or receiving CAN communication signal of OBD (emission-related diagnosis) with TCM for 2 seconds or more.
  • CAN communication line between TCM and ECM (CAN communication line is open or shorted)
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