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Home >> Cadillac >> 2013 >> Escalade Hybrid, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Controls/Fuel - 5.3L, 6.0L, 6.2L - DTC P0010 To DTC P0430) >> Diagnostic Information and Procedures >> DTC P0134, P0140, P0154, or P0160 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition ON, observe the DTC information with a scan tool. Verify no HO2S heater DTCs are set.
  2. Run the engine for greater than 5 minutes.
  3. Engine idling at operating temperature, observe the appropriate scan tool Heated Oxygen Sensor voltage parameter. Verify the following:
    • The HO2S Bank 1 or 2 Sensor 1 parameter should vary from below 200 mV to above 800 mV and respond to fueling changes.
    • The HO2S Bank 1 or 2 Sensor 2 parameter should fluctuate at less than 380 mV or greater than 520 mV. The values should not remain within 380 mV and 520 mV.
  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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