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Home >> Hyundai >> 2004 >> Elantra GLS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Fuel System >> DTC Trouble Shooting Procedures >> DTC P2237, P2243, P2251 & P2626: Linear O2 Sensor Circuit Open (Bank 1, Sensor 1) >> Inspection Procedures >> 2. Visually Check HO2S
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

2. Visually Check HO2S

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

Is HO2S contaminated, deteriorated or damaged? 

No 

Yes: Clean or replace HO2S.

Proceed with ECM problem procedure.

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