Code P047, Pcm/IPC Data Problem: Action
WARNING: This page is about a different car, the 1995 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
PCM turns on MIL. PCM sets all data to zero. PCM boosts idle to compensate for possible A/C clutch engagement. Cooling fan control will be based on engine coolant temperature only.
Courtesy of GENERAL MOTORS CORP.