For 1990-2009 cars

# SERVICE MANUAL REVISION UNDER DASH RELAY CENTER

#### VEHICLES AFFECTED: 1988 C AND H CARLINES

New art is attached, showing location of various relays and engine control fuses. This applies to 1988 C and H vehicles equipped with both the 3800 (VIN C) engine and the 3.8L (VIN 3) engine. The information will supplement diagnosis in Sections 6E3 and 8A.

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.