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Home › Saturn › 2007 › Ion Red Line › Repair and Diagnosis › Engine Performance › System › Engine Controls And Fuel - DTC P0017 To DTC P0122 › DTC P0053 or P0054 › Circuit/System Verification

Circuit/System Verification

  1. Allow the engine to reach operating temperature.
  2. Engine running, verify the appropriate scan tool HO2S Heater parameter is varying between 0.5-2 amp.
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