LEMON Manuals: Even more car manuals for everyone
Home >> Kia >> 2014 >> Optima EX >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) - 2.4L (Except HEV) >> DTC P0135: O2 Sensor Heater Circuit (Bank 1/Sensor 1) >> Wiring Inspection >> Control Circuit Inspection

Control Circuit Inspection

  1. Ignition "OFF".
  2. Disconnect HO2S connector.
  3. Ignition "ON" & Engine "OFF".
  4. Measure voltage between Heater Control terminal of the HO2S harness connector and chassis ground.

    Specification :  4-5V

  5. Is voltage within the specification?

    YES 

    NO 

    • Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
      NOTE:

      HO2S must have a clean air reference to function properly. The air is obtained by way of the sensor wire(s). Do not attempt to repair the wire(s), connector, or the terminals.

scientia non olet · About LEMON Manuals