The replacement procedures found in the above mentioned electrical systems manuals contain errors that could lead to confusion when replacing the PASS-Key Decoder Module.
The following procedures replace the procedures presently found in the manuals on the following pages:
1991 Park Avenue/Ultra - page 196
1992 Park Avenue/Ultra - page 210
1992 LeSabre - page 203
Please update your respective Electrical Systems Manual accordingly.
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.