Power Circuit Inspection
- IG "OFF" & Disconnect HO2S(S1) connector.
- IG "ON" & ENG "OFF".
- Measure voltage between power terminal of HO2S(S1) heater harness connector and chassis ground
Specification: B+
- 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.