Power Circuit Inspection

■ Linear Type 

1. Ignition "OFF" & Disconnect HO2S (B1S1) connector.
2. Ignition "ON"
3. Measure voltage between Pin No. 2 (Power) terminal of HO2S (B1S1) harness connector and chassis ground.

   Specification:  Approx 12V

4. 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.