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Lighting System - Repair Information

File In Section: 8 - Chassis/Body Electrical

Bulletin No.: 83-81-28

Date: July, 1998

INFORMATION

Subject:
Repair Information for Lighting System

Models:
1984-86 Chevrolet Berlinetta

The 1984-86 Chevrolet Berlinetta uses a relay-controlled lighting system. Two major components of the system are the Lighting Panel Switch (P/N 1995265) and the Relay Module (P/N 1115920). The supplies of complete repair units for these components have been exhausted at GMSPO and AC Delco. In addition, the factory repair service previously offered by Delphi-E for the Lighting Panel Switch has been discontinued.

Lighting Panel Switch Repair

To provide continuing service, a factory authorized repair service for the Lighting Panel Switch has been established at Repro Parts, Inc. If a Lighting Panel Switch is determined to need repair after diagnosing the system according to the vehicle Service Manual, it may be shipped to:

Repro Parts, Inc.
Berlinetta Repair
239 James Street
Bensenville, IL 60106-3318

Be sure to include the following

^ A check or money order payable to Repro Parts for the service fee (initially set at $150.00 U.S. dollars). Call (630) 860-6950 for the latest pricing.

^ A pre-addressed return shipping label.

^ A tag attached to the part with your name, address, a daytime phone number and a description of the problem.

Relay Module Repair

The Relay Module contains a total of 7 individual relays. A service replacement relay (P/N 10026663) is still available at this time for any of the following relays. Locations are designated on the cover of the module.

^ Courtesy Lamps Relay
^ Right Turn Relay
^ Left Turn Relay
^ Park/Tail Lamps Relay
^ Headlamp Relay

The above 5 relays are identical and the same service part services any of them.

Service replacements are no longer available for the following relays

^ Flasher Select Relay
^ Beam Change Relay

The above 2 relays are identical. To replace either of them, or to replace other parts of the relay module, the owner may need to locate a used unit.

Parts Information

P/N Description

10026663 Relay Module

Parts are currently available from GMSPO.