Signal Circuit Inspection
- Ignition "OFF"
- Disconnect HO2S connector
- Ignition "ON" & Engine "OFF".
- Measure voltage between terminal 1 of the sensor harness connector and chassis ground
- Specification: Approx. 0V
- Is voltage within the specification?
YES
- Go to "COMPONENT INSPECTION " procedure.
NO
- Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure