SERVICE MANUAL UPDATE SEC. 8A ELECTRICAL SYSTEM DIAGNOSIS. Oldsmobile Custom Cruiser 1990

For 1990-2009 cars

# SERVICE MANUAL UPDATE SEC. 8A ELECTRICAL SYSTEM DIAGNOSIS

#### SUBJECT: SERVICE MANUAL UPDATE TRAILER ADAPTOR WIRING DIAGRAM

#### MODELS/YEARS: 1990 CUSTOM CRUISER

Some 1990 Oldsmobile Custom Cruisers were produced with optional trailer adaptor wiring. The trailer adaptor wiring was not included in the 1990 Custom Cruiser Service Manual. For a circuit diagram and diagnosis of the trailer adaptor wiring for 1990, refer to the 1989 GM "B" Carline Service Manual, Section 8A-1 18-0 and-1 (Buick/Oldsmobile section of the manual).

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