For 1990-2009 cars

# SERVICE MANUAL UPDATE SEC. 8A ELECT. DIAG. TWILIGHT SENTINEL

#### SUBJECT: SERVICE MANUAL UPDATE - SECTION 8A ELECTRICAL DIAGNOSIS (REVISED SENTINEL TWILIGHT T82 CHART)

VEHICLES AFFECTED: 1988-89 C/H MODELS -------------------

The following component location charts omitted Twilight Sentinel Amplifier information:

#### 1988 Oldsmobile (Eighty-Eight and--Ninety-Eight)

The Component Location Chart on page 8A-101-3 should be revised to include Twilight Sentinel Amplifier - behind right hand side of IP compartment. Page/Figure 201-8-C - Connector 202-22.

#### 1989 Oldsmobile-Eighty-Eight-and Ninety-Eight

The Component location chart on page 8A-101-3 should be revised to read Twilight Sentinel Amplifier behind right hand side of IP compartment, above IP compartment. Page/Figure 201-9-B - Connector 202-32.

Please update your service manuals 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.