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Home >> Kia >> 2004 >> Rio Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Fuel System & Fault Isolation >> DTC Troubleshooting >> DTC P0131: Ho2S Circuit Low Input (Bank 1, Sensor 1) >> Inspection/Repair >> W/Harness Inspection >> Signal Circuit Inspection

Signal Circuit Inspection

  1. Ignition "OFF"
  2. Disconnect HO2S connector
  3. Measure resistance between terminal 1 of the sensor harness connector and chassis ground
    1. Specification : Infinite
      Fig 1: Measuring Resistance Between Terminal 1 Of Sensor Harness Connector And Chassis Ground
      G07331657
  4. Is resistance within the specification?

    YES

    1. Go to "COMPONENT INSPECTION " procedure.

    NO

    1. Repair open or short to ground in signal circuit and go to "VERIFICATION OF VEHICLE REPAIR " procedure
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