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Home >> Cadillac >> 2021 >> CT5 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Controls And Fuel - 3.0L (LGY) - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC P0036-P0038, P0054, P0056-P0058, P0060, P0141, or P0161 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition - On / Vehicle - In Service Mode
  2. Perform the scan tool control function: Heated Oxygen Sensor 2 Heater/Heated Oxygen Sensor 2 Heater Bank 2 - Increase/Decrease

    Verify the scan tool parameter:

    • Heated Oxygen Sensor 2 Heater Control Circuit High Test Status/Heated Oxygen Sensor 2 Heater Control Circuit High Test Status Bank 2 = Not Run or Okay
    • Heated Oxygen Sensor 2 Heater Control Circuit Low Test Status/Heated Oxygen Sensor 2 Heater Control Circuit Low Test Status Bank 2 = Not Run or Okay
    • Heated Oxygen Sensor 2 Heater Control Circuit Open Test Status/Heated Oxygen Sensor 2 Heater Control Circuit Open Test Status Bank 2 = Not Run or Okay
    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  3. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.

    Verify the DTC does not set.

    • If the DTC sets 

      Refer to: Circuit/System Testing

    • Go to next step: If the DTC does not set 
  4. All OK.