DTC P0325: Knock Sensor 1 Circuit (Bank 1 or Single Sensor): DTC Detecting Condition

2009 Hyundai Sonata SE, 3.3 FSECTION DTC Detecting Condition
DTC DETECTING CONDITION CHART

Item Detecting Condition Possible Cause
DTC Strategy
  • Signal open
  • Poor connection
  • Open in harness
  • Knock sensor
  • PCM
Enable Conditions
  • Pressure in intake manifold is normal.
  • Engine speed β‰₯ 2200rpm
Threshold value
  • Filter coefficient < 1.0
Diagnosis Time
  • Continuous
MIL On Condition
  • 2 driving cycles
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.