Ground Circuit Inspection
- Ignition switch OFF & Disconnect HO2S (B1/S2) connector.
- Measure resistance between ground terminal of HO2S (B1/S2) and chassis ground.
Specification: Below 1Ω
- Is the measured resistance within specification?
YES
- Go to "COMPONENT INSPECTION ".
NO
- Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR ".