Ground Circuit inspection

Check for Open in Harness

1. Ignition "OFF".
2. Disconnect HO2S connector.
3. Measure resistance between terminal "2" of the HO2S harness connector and chassis ground.
   1. Specification: Approx. 0Ω
      Fig 1: Measuring Resistance Between Terminal 2 Of HO2S Harness Connector And Chassis Ground

      
4. Is the resistance within specifications?

   YES

   1. Go to "COMPONENT INSPECTION " procedure.

   NO

   1. Check for open in Ground harness. Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.