Ground Circuit Inspection

■ Check Open in Ground Circuit 

1. IG KEY "OFF".
2. Disconnect HO2S (S2) connector.
3. 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 KIA MOTORS AMERICA, INC.
   Fig 2: HO2S Ground Connector Terminal

   Courtesy of KIA MOTORS AMERICA, INC.
4. 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.