Ground Circuit Inspection

IG KEY "OFF".
Disconnect HO2S (S2) connector.
Measure resistance between ground terminal of HO2S (S2) and chassis ground.
Specification: below 1Ω

Fig 1: Measuring Resistance Between Ground Terminal Of HO2S (S2) And Chassis Ground
Courtesy of HYUNDAI MOTOR AMERICA
Is the measured resistance within specification?
YES
- Go to "COMPONENT INSPECTION " procedure.
NO
- Repair Open circuit and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.