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Home >> Kia >> 2005 >> Rio Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures >> DTC Troubleshooting >> DTC P0138: Ho2S Circuit High Input (Bank 1, Sensor 2) >> Inspection/Repair >> W/Harness Inspection >> Signal Circuit Inspection

Signal Circuit Inspection

  1. Ignition "OFF".
  2. Disconnect HO2S connector.
  3. Ignition "ON".
  4. Measure voltage between terminal 1 of the sensor harness connector and chassis ground.
    1. Specification: Approx. 0V
      Fig 1: Measuring Voltage Between Terminal 1 Of Sensor Harness Connector And Chassis Ground
      G07339514
  5. Is voltage within the specification?

    YES

    1. Go to "COMPONENT INSPECTION " procedure.

    NO

    1. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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