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