Signal Circuit Inspection
- Check Open or Short In Signal Circuit
- IG "OFF" and disconnect HO2S (B1/S1) connector.
- IG "ON"
- Measure voltage between signal terminal of HO2S (B1/S1) harness connector and chassis ground.
Specification: Approx. 0.45V
- Is the measured voltage within specification?
YES
Go to "GROUND CIRCUIT INSPECTION " procedure.
NO
Repair Open or Short circuit and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.