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DTC Detection Logic

WARNING: This page is about a different car, the 2011 Nissan 370Z. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION LOGIC

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B2553 IGN POWER CIRCUIT BCM detects a difference of signal for 2 seconds or more between the following items.
  • Ignition relay ON/OFF operation
  • Ignition relay (IPDM E/R) feedback.
  • Harness or connectors (Ignition relay feedback circuit is open or short)
  • BCM
  • IPDM E/R