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Home >> Infiniti >> 2008 >> G37 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - G37 Coupe - DTC U0113, U1000, U1001, U1003, U1010, U1011 & U1024; DTC P0011 Through P0223 >> U0113, U1003 Can Comm Circuit >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

NOTE: If DTC U0113 or U1003 is displayed with DTC U1011, first perform the trouble diagnosis for DTC U1011.

Refer to "DTC LOGIC ".

DTC DETECTING CONDITION CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible Cause
U0113 Lost communication with VVEL control module CAN communication signal of OBD (emission related diagnosis) is not received VVEL control module and ECM for 2 seconds or more.
  • Harness or connectors

    (VVEL CAN communication line is open or shorted)

  • ECM
  • VVEL control module
U1003 CAN communication signal other than OBD (emission related diagnosis) is not received between VVEL control module and ECM for 2 seconds or more.
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