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Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> External Pages >> Different car >> Section 640 (Security Control System) >> Component Diagnosis >> B2193, P1612 Chain Of ECM-IMMU >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • If DTC B2193 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to "DTC LOGIC ".
  • If DTC B2193 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to "DTC LOGIC ".
    DTC DETECTION LOGIC CHART

    DTC No. Trouble diagnosis name DTC detecting condition Possible cause
    B2193 CHAIN OF ECM-IMMU Inactive communication between ECM and BCM.
    • Harness or connectors

      (The CAN communication line is open or shorted)

    • BCM
    • ECM
    P1612
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