Control Circuit Inspection
- IG "OFF" & disconnect HO2S(B1/S1) connector.
- IG "ON" & ENG "OFF".
- Measure voltage between terminal 2 of HO2S(B1/S1) harness connector and chassis ground.
Specification: Prix. 0 V
- Is the measured voltage within specification?
YES
- Go to HO2S(B1/S1) "Component Inspection" procedure.
NO
- Repair short to battery in HO2S(B1/S1) Heater control circuit and go to "VERIFICATION OF VEHICLE REPAIR " procedure.