Signal Circuit Inspection
■ Check Voltage
- IG "OFF" and disconnect HO2S (S2) _DOWN connector.
- IG "ON"
- Measure voltage between signal terminal "1" of HO2S (S2) _DOWN harness connector and chassis ground.
Specification: Approx. 0.45V
- Is the measured voltage within specification?
YES
- Go to "GROUND CIRCUIT INSPECTION " procedure.
NO
- Repair open in harness, and go to "Verification Of Vehicle Repair " prcedure.