SERVICE MANUAL UPDATE-SEC 8A (REVISED ELEC. DIAGNOSTICS)

SUBJECT: SERVICE MANUAL UPDATE - SECTION 8A - REVISED ELECTRICAL DIAGNOSTICS

MODELS AFFECTED: 1991 REGAL

This bulletin supplement provides late production and revised information to Section 8A - Electrical Diagnostics, as follows:

The UPDATE CHANGE SUMMARY follows the service manual index. The summaries show wiring changes since publication of the final edition of the 1991 Service Manual. All changes are labeled with LATE PRODUCTION OR REVISED note.

The MULTI-USE INDEX allows the user to reference the Section 8A Supplement or 1991 Service Manual.

Please update your service manual accordingly.

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.