Signal Circuit Inspection
- IG "OFF".
- Disconnect HO2S (B1/S2) connector.
- IG "ON" & ENG "OFF".
- Measure voltage between terminal 2 of HO2S (B1/S2) and chassis ground.
Specification: Approx. 0.45V
- Is the measured voltage within specification?
YES
- Go to "COMPONENT INSPECTION " procedure.
NO
- Repair short to power in signal circuit and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.