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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 52 (Engine Controls And Fuel - 1.4L (LV7) - DTC P0010 To DTC P0366) >> Diagnostic Information and Procedures >> DTC P0030-P0032, P0036-P0038, P0053, P0054, P0135, P0141, P103B, or P103C: HO2S Heater(s) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
  1. Engine running.
  2. Verify the parameters listed below do not display Malfunction.
    • HO2S 1 or 2 Heater Control Circuit High Voltage Test Status
    • HO2S 1 or 2 Heater Control Circuit Open Voltage Test Status
    • HO2S 1 or 2 Heater Control Circuit Low Voltage Test Status
    • If Malfunction is displayed 

      Refer to Circuit/System Testing.

    • If Malfunction is not displayed 
  3. Observe the scan tool HO2S 1 Heater or HO2S 2 Heater parameter. The amperage should be between 0.3 - 2.4 A.
    • If not between 0.3 - 2.4 A 

      Refer to Circuit/System Testing.

    • If between 0.3 - 2.4 A 
  4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed in the Freeze Frame/Failure Records data.
  5. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

    • If the DTC does not set 
  6. All OK.
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