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Home >> Suzuki >> 2009 >> Equator Base, 4D Pickup >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (VQ40DE) - (4 Of 5) >> DTC U1001: CAN COMM Circuit >> On Board Diagnosis Logic
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On Board Diagnosis Logic

The MIL will not illuminate for this diagnosis. 

DTC DETECTING CONDITION AND POSSIBLE CAUSE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
U1001
1001
CAN communication line
  • When ECM is not transmitting or receiving CAN communication signal other than OBD (emission-related diagnosis) for 2 seconds or more.
  • Harness or connectors (CAN communication line is open or shorted)