Reference Ground Circuit Inspection

Ignition "OFF".
Disconnect HO2S and PCM connectors.
Measure resistance between terminals 2 of the sensor harness connector and 46 of the PCM harness connector.
Specification : Approx. 0Ω

Fig 1: Measuring Resistance Between Sensor Harness Connector Terminal 2 And PCM Harness Connector Terminal 46
Courtesy of KIA MOTORS AMERICA, INC.
Is resistance within the specification?
YES
- Go to "TERMINAL AND CONNECTOR INSPECTION " procedure.
NO
- Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.