Signal Circuit Inspection
- Ignition "OFF" and disconnect HO2S (S2) connector.
- Ignition "ON"
- Measure voltage between Pin No. 1 (signal) terminal of HO2S (S2) harness connector and chassis ground.
Specification : Approx 0.45V
- Is the measured voltage within specification?
YES
- Go to "Component Inspection " procedure.
NO
- Repair or replace as necessary and then, go to "Verification Of Repair " procedure.