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DTC Detection Logic

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DTC DETECTION 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)
  • IPDM E/R
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