Power Circuit Inspection

IG "OFF".
Disconnect HO2S (B1S1) connector.
IG "ON" & ENG "OFF".
Measure voltage between terminal 4 of HO2S (B1S1) harness connector and chassis ground.
Specification : B+

Fig 1: Measuring Voltage Between Terminal 4 Of HO2S (B1S1) Harness Connector And Chassis Ground
Courtesy of HYUNDAI MOTOR CO.
Is the measured voltage within specification?
YES
- Go to "CONTROL CIRCUIT INSPECTION " procedure.
NO
- Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.