Pumping Current Circuit Inspection

Ignition "OFF".
Disconnect HO2S and PCM connectors.
Measure resistance between terminals 4 of the sensor harness connector and 44 of the PCM harness connector.
Specification: Approx. 0Ω

Fig 1: Measuring Resistance Between Sensor Harness Connector Terminal 4 And PCM Harness Connector Terminal 44
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.