Virtual Ground Output Circuit Inspection
- Check Open or Short in signal circuit
- IG KEY "OFF".
- Disconnect HO2S(S1) connector.
- IG KEY "ON" & ENG "OFF".
- Measure the voltage between Virtual Ground Output terminal of HO2S(S1) harness connector and chassis ground.
Specification : Approx 2.5V
- Is the measured voltage within specification?
YES
Go to "COMPONENT INSPECTION " procedure.
NO
Repair Open or Short circuit and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.