Ground Circuit inspection

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