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Home >> Pontiac >> 2009 >> Vibe Base, 2.4 0, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 157 (Engine Controls And Fuel - 4.6L - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0030, P0036, P0050, P0053, P0054, P0056, P0059, P0060, P0135, P0141, P0155, or P0161 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Engine idling, command the appropriate HO2S heater ON and OFF with a scan tool while observing the HO2S Heater Circuit Test Status parameter. The parameter should display OK or Not Run.
  2. Engine idling at operating temperature, observe the scan tool HO2S Heater parameter . The amperage should be within 1-2 A.
  3. Engine idling at operating temperature, move the related wiring and connectors while observing the HO2S Heater parameter with a scan tool. The parameter should not change with movement.
    • If movement affects the parameter, repair the appropriate harness or connector.
  4. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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