LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2012 >> EX35 Base, AWD >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Power Control System (Power Distribution System) >> DTC/Circuit Diagnosis >> DTC B2553: Ignition Relay >> DTC Logic >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

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 information.
  • 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