THE ELECTRONIC GLOW PLUG SYSTEM DIAGNOSIS CHART, FIGURE 4 ON PAGE 6A6-5 OF THE 1982 CHASSIS SERVICE MANUAL REFERS TO A CONTINUITY CHECK FROM THE CONTROL SENSOR CONNECTOR TERMINAL "D" (ORANGE) TO GROUND. THIS AREA OF THE CHART HAS BEEN REVISED TO SHOW THAT THE SAME CONTINUITY READING COULD SHOW UP IF THERE WAS A SHORT-TO-GROUND IN CIRCUIT 503 (ORANGE). THE CHART ON THE REVERSE SIDE OF THIS BULLETIN INCLUDES THIS ADDITIONAL INFORMATION. PLEASE MAKE NOTE OF THIS ADDITIONAL INFORMATION IN THE SERVICE MANUALS LISTED BELOW: 1982 CHEVROLET PASSENGER CAR 1982 BUICK REGAL, LESABRE, ELECTRA, & RIVIERA 1982 OLDSMOBILE CUTLASS, 88, 98, & TORONADO
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.