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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 P1808 or P1809 (Hybrid) >> Circuit/System Verification (Hybrid)

Circuit/System Verification (Hybrid)

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. Perform the Transmission Fluid Check .
  2. Ignition ON, engine off, gear selector in Park, Reverse, Neutral, or Drive, observe the scan tool ECM TFP switch A parameter should read Low. Engine running, observe the scan tool ECM TFP switch A parameter should read High.
  3. 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.
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