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: MANUAL UPDATE - SECTION 8A ELECTRICAL DIAGNOSIS (REFER TO 1989 MANUAL ADAPTOR WIRING DIAGRAM)

#### VEHICLES AFFECTED: 1990 'B' OLDSMOBILE CUSTOM CRUISER

Some Early Production 1990 Oldsmobile Custom Cruisers were produced with trailer adaptor wiring. The trailer adaptor wiring was not included in the 1990 "B" Carline Service Manual. For a circuit diagram and diagnosis description of the trailer adaptor wiring for 1990, refer to the 1989 "B" Carline Service Manual Section 8A-118.

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