Power Circuit Inspection

IG "OFF" & Disconnect HO2S (S2) connector.
IG "ON".
Measure the voltage between power terminal of HO2S (S2) harness connector and chassis ground.
Specification: Approx B+

Fig 1: Measuring Voltage Between Power Terminal Of HO2S (S2) Harness Connector And Chassis Ground
Courtesy of HYUNDAI MOTOR AMERICA
Is the measured voltage within specification?
YES

Go to "CONTROL CIRCUIT INSPECTION " procedure.

NO

Repair Open or Short circuit and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.