LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2013 >> FX37 Base, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Security Control System >> DTC/Circuit Diagnosis >> DTC B2193: Chain Of ECM-IMMU >> DTC Logic >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

NOTE:
  • If DTC B2193 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to "BCM: DTC LOGIC ".
  • If DTC B2193 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to "BCM: DTC LOGIC ".
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B2193 CHAIN OF ECM-BCM Inactive communication between ECM and BCM
  • Harness or connectors (The CAN communication line is open or shorted)
  • BCM
  • ECM