Control Circuit Inspection

Check for open in control harness.
1. Ignition "OFF".
2. Disconnect PCM connector
3. Measure resistance between terminals 6 of the HO2S heater harness connector and 8 of the PCM harness connector
  Specification: Approx 0Ω
  
  Fig 1: Measuring Resistance Between Terminals 6 Of HO2S Heater Connector And 8 Of PCM Connector
  Courtesy of HYUNDAI MOTOR CO.
4. Is resistance within the specification?
  Yes:
  - Go to next step as below
  No:
  - Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for short to ground in control circuit.
1. Measure resistance between terminal 6 of the HO2S heater harness connector and chassis ground
  Specification: infinite
  
  Fig 2: Measuring Resistance Between Terminal 6 Of HO2S Heater Connector And Chassis Ground
  Courtesy of HYUNDAI MOTOR CO.
2. Is resistance within the specification?
  Yes:
  - Go to "COMPONENT INSPECTION " procedure.
  No:
  - Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.