For 1990-2009 cars

# COMPUTER COMMAND CONTROL DIAGNOSTIC CHARTS

#### VEHICLES AFFECTED: 1982 Pontiac Grand Prix With C-3

Attached are revised diagnositc charts for the 1982 C-3 system. These are charts that have been revised since the publication of Pontiac's 1982 Grand Prix/Bonneville Service Manual. These diagnostics should be used in plae of the same chart shown in the Service Manual. Refer to the list below for the titles of the revised charts and the page numbers they replace.

SYSTEM PERFORMANCE CHECK 6E-22 CHART NO. 2 6E-24 CHART NO. 34 6E-38 TROUBLE CODE 41) 6E-42 TROUBLE CODE 42) CHART NO. 43 6E-43 TROUBLE CODE 55 6E-47 ESC SYSTEM CHECK 6E-55 EGR VALVE CHECK 6E-57 TCC ELECTRICAL DIAGNOSIS 6E-60

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.