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Home >> Infiniti >> 2010 >> FX35 AWD >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Security Control System >> Component Diagnosis >> DTC B2109: Steering Lock Relay >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

NOTE:
  • If DTC B2109 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to IPDM E/R: DTC LOGIC .
  • When IPDM E/R power supply voltage is low (Approx. 7 - 8 V for about 1 second), the DTC B2109 may be detected.
DTC DETECTION LOGIC TABLE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B2109 STRG LCK RELAY OFF IPDM E/R detects that the relay is stuck in the OFF position for about 1 second even if the IPDM E/R receives steering lock relay ON/OFF signal from BCM.
  • Harness or connector (Power supply circuit)
  • IPDM E/R
  • Battery