SPECIAL BULKHEAD CONNECTORS SERVICE INFORMATION. Cadillac DeVille 1983

A SPECIAL PRODUCTION TRIAL IS BEING RUN ON 100 1983 ELDORADOS AND ON 100 1983 C-CARS INVOLVING THE INSTALLATION OF CERTAIN WIRE HARNESSES USING NEWLY DESIGNED BULKHEAD CONNECTORS. IN THE INVOLVED VEHICLES, THESE HARNESSES ARE IDENTIFIED BY A LABEL REFERENCING THIS BULLETIN ATTACHED TO THE BULKHEAD CONNECTORS. THE HARNESS CIRCUITS ARE IDENTICAL TO THE NORMAL 1983 CIRCUITS SHOWN IN THE 1983 SERVICE INFORMATION MANUAL EXCEPT THEY ARE INDEXED DIFFERENTLY IN THE BULKHEAD CONNECTORS. WHEN INVESTIGATING OR TROUBLESHOOTING THE AFFECTED CIRCUITS, IT IS NECESSARY TO REFER TO THE CONNECTOR INDEXING INCLUDED IN THIS BULLETIN. ON THE 'C'-SERIES VEHICLES, THE AFFECTED CONNECTORS ARE LOCATED AT THE CENTER BULKHEAD. ON THE ELDORADO VEHICLES, THE AFFECTED CONNECTORS ARE LOCATED AT THE CENTER BULKHEAD AND LEFT HAND BULKHEAD. IF REPAIRS NECESSITATE COMPLETE HARNESS REPLACEMENT, THE FOLLOWING SERVICE HARNESSES ARE AVAILABLE THROUGH GM OF CANADA PARTS: 'C' SERIES VEHICLES INSTRUMENT PANEL HARNESS-GASOLINE 12028090 INSTRUMENT PANEL HARNESS-DIESEL 12036366 ENGINE HARNESS-GASOLINE 12028092 ENGINE HARNESS-DIESEL 12028093 UNDERHOOD HARNESS 12028094 'E' SERIES VEHICLES (GASOLINE ONLY) INSTRUMENT PANEL HARNESS 12028096 ENGINE HARNESS 12028097 UNDERHOOD HARNESS 12028099 FORWARD LAMP HARNESS 12028098 DASH HARNESS 12028095 (SEE CHARTS IN BULLETIN)

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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.