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Home >> Kia >> 2006 >> Rio5 Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures (2 Of 2) >> DTC P1550 Knock Sensor Evaluation Ic >> Signal Circuit Inspection

Signal Circuit Inspection

  1. Key "OFF".
  2. Disconnect Knock sensor connector.
  3. Key "ON".
  4. Measure the voltage between terminal 1 of knock sensor harness connector and chassis ground.
  5. Measure the voltage between terminal 2 of knock sensor harness connector and chassis ground.

    Specification: Approx 2.4V

  6. Is the measured voltage within specification?

    YES 

    NO 

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