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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> DTC Diagnosis >> DTC P0325: Knock Sensor 1 Circuit (Bank 1)

DTC P0325: Knock Sensor 1 Circuit (Bank 1)

P0325 - KNOCK SENSOR 1 CIRCUIT (BANK 1)

Description:  The knock sensor detects vibrations upon increase and decrease in engine RPM. The knock sensor generates a voltage based on this vibration. If the voltage goes outside a calibrated level, a DTC is set.
Possible Causes: 
  • Knock sensor circuit short to GND
  • Knock sensor circuit short to voltage
  • Knock sensor circuit open
  • Damaged knock sensor
Diagnostic Aids:  A knock sensor voltage greater than 0.5 volt with the key ON engine OFF indicates a concern is present.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All - GO to Pinpoint Test DG . GO to Pinpoint Test DG .