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Signal Circuit Inspection

Ignition "OFF"
Disconnect HO2S connector.
Ignition "ON"
Measure resistance between terminal 2 of the sensor harness connector and chassis ground.
Specification : Approx. 0V

Fig 1: Measuring Resistance Between Terminal 2 Of Sensor Harness Connector And Chassis Ground
Courtesy of HYUNDAI MOTOR AMERICA
Is voltage within the specification?
YES
- Go to "COMPONENT INSPECTION " procedure.
NO
- Repair open in the ground circuit and go to "VERIFICATION OF VEHICLE REPAIR ".