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Circuit/System Testing: Notes

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect for DTC P0C2B. Diagnose P0C2B before performing this procedure.
  2. Ignition ON, engine OFF, observe the Aux. Trans. Fluid Pump Fault Status 1 and Aux. Trans. Fluid Fault Status 2 displays with the scan tool.
  3. Command the aux. trans. fluid pump speed to 50 percent with the scan tool.
    • Refer to the applicable diagnostic procedure below for the fault status indicated by the scan tool display.
    • If No Fault status is displayed, review the Freeze Frame/Failure Records and perform the diagnosis indicated by the Fault Status parameter display.
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