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DTC Detection Logic

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

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