Power Circuit Inspection
- Ignition "OFF" and disconnect HO2S (S2) connector.
- Ignition "ON".
- Measure voltage between Pin No. 3 (power) terminal of HO2S (S2) harness connector and chassis ground.
Specification: Approx 12V
- Is the measured voltage within specification?
YES
- Go to "Control Circuit Inspection " procedure.
NO
- Repair or replace as necessary and then, go to "Verification of Vehicle Repair " procedure.