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Home >> Hyundai >> 2009 >> Elantra GLS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures >> DTC P0036 Ho2S Heater Control Circuit (Bank 1/Sensor 2) >> Control Circuit Inspection
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Control Circuit Inspection

  1. Measure voltage between terminal 4 of the HO2S heater harness connector and chassis ground.

    Specification:  Approx. 4~5V

  2. Is voltage within the specification?

    YES 

    NO 

    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.
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