DTC Detection Logic

2015 Nissan-Datsun Pathfinder SL, FWDSECTION DTC Detection Logic
CONSULT Display DTC Detection Condition Possible Cause
REAR LEFT SIDE INTERNAL SENSOR
[B2721]
  • Sensor is not configured.
  • Sensor is open or short circuited.
  • Sensor element malfunction.
  • Sensor configuration.
  • Harness or connectors.
  • Rear sonar sensor LH inner.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.