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Home >> Infiniti >> 2013 >> EX37 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 38 (Power Control System) >> Power Distribution System >> Component Diagnosis >> DTC B261A: Push-Button Ignition Switch >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

WARNING: This page is about a different car, the 2008 Infiniti EX35. 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
B261A PUSH-BUTTON IGNITION SWITCH BCM detects a difference of signal for 1 second or more between the following information.
  • Power supply position by push-button ignition switch
  • Power supply position from IPDM E/R (CAN)
  • Harness or connectors (Push-button ignition switch circuit is open or shorted.)