For 1990-2009 cars

# CHECK ENGINE LAMP DRIVER BOARD LOCATION INFORMATION

WE HAVE RECEIVED COMMENTS QUESTIONING THE LOCATION OF THE "CHECK ENGINE LIGHT" DRIVER MODULE ON ALL MODELS WITH GAS ENGINES. THIS DEVICE IS TAPED TO THE MAIN WIRING HARNESS BEHIND THE I/P, JUST TO THE RIGHT OF VEHICLE CENTER LINE. IT IS CONTAINED INSIDE A LIGHT GREEN CASE WITH A SNAP OPEN END COVER. THE CASE IS APPROXIMATELY 1/2" THICK 3" LONG AND 1-1/2" WIDE. IT IS SHOWN ON PAGE 219 OF THE 1982 ELECTRICAL TROUBLESHOOTING MANUAL TITLED "LIGHT DRIVER MODULE" AND IN THE 1982 CUTLASS CIERA AND OMEGA MANUAL ON PAGE 6E1-63 FIG. 6E1-66.

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.