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Home >> Hyundai >> 2004 >> Elantra GLS, Standard >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> DTC Trouble Shooting Procedures >> DTC P0036: O2 Sensor Heater - Heater Control Circuit (Bank 1, Sensor 2) >> Inspection Procedures >> 3. Visually Check HO2S For Conditions
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3. Visually Check HO2S For Conditions

  1. Remove HO2S.
  2. Thoroughly check HO2S for contamination, deterioration or damage.

Is HO2S contaminated, deteriorated or damaged? 

Yes: Proceed with ECM problem procedure.

No: Clean or replace HO2S.

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