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Home >> Chevrolet >> 2021 >> Trailblazer RS, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Controls And Fuel - 1.0L (L4B L4F L4G LIJ) Or 1.2L (L4H L4K LIF LIH) - Repair Instructions) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Sensor 1 >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
  1. GM5392500Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Component Fastener Tightening Caution

    Use the J-39194-C  wrench to install the heated oxygen sensor (1) and tighten to 42 N.m (31 lb ft).

  2. Retainer (2) - Connect [2x]
  3. Electrical Connector (1) - Connect
  4. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection
  5. Perform the HO2S heater resistance learned values reset. HO2S Heater Resistance Learned Values Reset 
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