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Home >> Infiniti >> 2012 >> M37 x >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 106 (Security Control System) >> DTC/Circuit Diagnosis >> DTC B210B: Starter Control Relay >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If DTC B210B is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to "DTC LOGIC ".
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B210B START CONT RLY ON When comparing the following items, IPDM E/R detects that starter control relay is stuck in the ON position for 1 second or more.
  • Starter control relay signal (CAN) from BCM
  • Starter relay status signal (CAN) from BCM
  • Starter control relay and starter relay status signal (IPDM E/R input)
  • Starter control relay control signal (IPDM E/R output)
  • P/N position signal input
  • Harness or connectors (The CAN communication line is open or shorted.)
  • IPDM E/R
  • BCM