For 1990-2009 cars

# SERVICE INFO MANUAL REVISION SIR SYSTEM DIAGNOSIS

#### SUBJECT: SIM REVISION - SECTION 9JA SUPPLEMENTAL INFLATABLE RESTRAINT (REVISED DIAGNOSIS PAGES)

#### VEHICLES AFFECTED: 1990 C,E,K,V MODELS

Attached are the revised pages of the Service Information Manual for the Supplemental Inflatable Restraint system diagnosis. Please update as indicated.

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.