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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 2000 (Automatic Transmission - 4T45-E - DTC P0973 To DTC P2797) >> DTC P2797 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. If DTC P0B09, P1808, P1809 or P2796 is set diagnose those DTCs first. Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
  2. Perform the Transmission Fluid Check to verify correct fluid level and condition. The transmission fluid level should be within the crosshatch band and the transmission fluid should be red or dark brown.
  3. Ignition ON, engine OFF, command the ECM Aux Trans Pump ON and OFF with a scan tool. Listen for the auxiliary transmission pump operation. A stethoscope may be necessary to hear pump operation.
  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 observe from the Freeze Frame/Failure Records data.