SERV. MANUAL UPDATE-SEC.5E1 ABS DIAGNOSIS/CHART

Subject: SERVICE MANUAL UPDATE/SECTION 5E1 ABS DIAGNOSIS/CHART A INLET/OUTLET VALVE CIRCUIT TEST

Models Affected: 1991 BONNEVILLE MODELS

REVISED ELECTRONIC BRAKE CONTROL MODULE (EBCM) SOFTWARE

BONNEVILLE:

Fuse 8 in the Instrument Panel Fuseblock must be removed prior to any measurements being made in the test on page 5E1-11 in Chart A Inlet/Outlet Valve Test. Add the words "Remove Fuse 8" as a condition to the test in the third box down on the left hand side of the page in your manual.

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.