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Removal Procedure

CAUTION: Refer to Heated Oxygen Sensor Resistance Learn Reset Caution .
CAUTION: Refer to Heated Oxygen and Oxygen Sensor Caution .
    Fig 1: View Of Electrical Connectors
    GM1923753Courtesy of GENERAL MOTORS CORP.
  1. Remove the connector position assurance (CPA) retainer from the heated oxygen sensor (HO2S) connection.
  2. Disconnect the engine wiring harness electrical connector (2) from the HO2S electrical connector (1).
  3. Remove the HO2S electrical connector (1) clip from the transmission fluid fill tube bracket.
    4. Fig 2: View Of HO2S
    GM1923757Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Excessive Force and Oxygen Sensor Caution .
  4. Remove the HO2S (1). Use the J 39194-B  , if required. See Special Tools .
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