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Home >> Hyundai >> 2004 >> Elantra GLS, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System >> DTC Trouble Shooting Procedures >> DTC P0325: Knock Sensor (KS) Circuit Malfunction >> Inspection Procedures >> 2. Check For Open In Harness

2. Check For Open In Harness

  1. Turn ignition to OFF position and disconnect KS and ECM connectors.
  2. Measure resistance between KS harness connector terminal 2 and ECM harness connector terminal 54.
  3. Measure resistance between KS harness connector terminal 1 and ECM harness connector terminal 10.
    Fig 1: Checking KS Harness For Open Circuit
    G00750524Courtesy of HYUNDAI MOTOR CO.
    • Specifications: below 1Ω 

Does each resistance indicate continuity? 

Yes: Go to next step.

No: Repair open in harness.