Power Circuit Inspection

IG "OFF" & Disconnect HO2S(B1/S1) connector.
IG "ON" & ENG "OFF".
Measure voltage between terminal 1 of HO2S(B1/S1) harness connector and chassis ground.
Specification: B+

Fig 1: Measuring Voltage Between Terminal 1 Of HO2S(B1/S1) Harness Connector And Chassis Ground
Courtesy of KIA MOTORS AMERICA, INC.
Is the measured voltage within specification?
YES
- Go to HO2S(B1/S1) heater "Control Circuit Inspection" procedure.
NO
- Repair open or short to ground in HO2S(B1/S1) Heater power circuit then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.