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Home >> Cadillac >> 2013 >> Escalade Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Controls/Fuel - Hybrid (LZ1) - DTC P0010 To DTC P0341) >> Diagnostic Information and Procedures >> DTC P0131, P0132, P0137, P0138, P0151, P0152, P0157, or P0158 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition OFF, open the hood to disable the Auto-Stop function. Refer to Hybrid Modes of Operation Description .
  2. Ignition ON, verify the scan tool hood position parameter displays Open.
  3. Ignition ON, observe the DTC information with a scan tool. Verify no HO2S heater DTCs are set.
  4. Engine running, observe the appropriate scan tool HO2S voltage parameter. The reading should be within the range of 50-1,050 mV.
  5. 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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