Please correct the following figure in your 1986 Grand Am Service Manual.
On page 6E3-A-4, Figure A-3, Air Temperature Signal Terminal should be labeled Bll and not Cll as shown.
Terminal is correctly identified on page 8A-21-4.
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.