CAMPAIGN:PULSE WIPER RELAY CAPACITOR MAY FAIL(OPT.CD4)

CONDITION

General Motors has determined that a defect which relates to motor vehicle safety exists in some early production 1983 Toronados equipped with the optional Delco/Bose radio sound system and the windshield wiper pulse delay feature. These vehicles have a noise suppression capacitor in the wiper motor pulse relay which may overheat during operation of the pulse delay feature. This condition could result in loss of windshield wiper operation and under certain conditions could result in an underhood fire. Such a fire could, in time, spread to the passenger compartment and cause burn injuries to occupants remaining in the vehicle.

VEHICLES INVOLVED

Involved are certain early production 1983 Oldsmobile Toronado models equipped with Delco/Bose sound system (option UU8) and windshield wiper pulse delay feature (option CD4) from the start of production through the following serial number.

Assembly Plant Serial Number -------------- ------------- Linden DE306965

DEALER ACTION

To prevent the possibility of this condition occurring on vehicles involved, the wiper motor pulse relay capacitor is to be removed as instucted in the Service Procedure section of this Bulletin.

Dealers are to perform this recall campaign at no charge to the owner on affected vehicles, regardless of time, mileage or ownership, and are to correct all affected vehicles in dealer new and used car inventory prior to their sale.

Whenever a vehicle subject to this campaign is taken into your new or used car vehicle inventory in the future, you should take the steps necessary to be sure the campaign correction has been made before reselling the vehicle.

Dealers are to perform the campaign services on all affected vehicles as they are brought in for any kind of service until all affected vehicles have been corrected.

SERVICE PROCEDURE

1. Open hood. Loosen and move windshield washer fluid reservoir located on the left front fender inner skirt to gain access to windshield wiper motor.

2. Remove both electrical connectors from wiper motor.

3. Remove wiper motor black plastic cover by grasping cover in area of electrical terminals and pulling outward.

4. Remove pulse relay yellow cover by unlatching from its base and rotating clockwise to clear printed circuit board components.

5. Remove capacitor from pulse relay by cutting its leads as close to terminals A and B as possible. Refer to Figure 1.

NOTICE: BE EXTREMELY CAREFUL NOT TO CUT RED COIL WIRES WHEN CUTTING THE CAPACITOR LEADS. A RED COIL WIRE IS ATTACHED TO TERMINAL B (REFER TO FIGURE 1) AND IS VERY DIFFICULT TO SEE. CUTTING THE RED COIL WIRE WILL RESULT IN TOTAL LOSS OF WIPER OPERATION.

6. Reinstall relay yellow plastic cover, wiper motor black plastic cover and electrical connectors to motor terminals.

7. Reinstall washer fluid reservoir.

8. Check operation of wiper motor, washer and pulse feature. Correct as required. Inspect operation of wiper motor, washer and pulse feature. If the windshield wipers do not work, verify that the red coil wire was not cut. If the red coil wire was cut, replace the relay.

9. Install campaign correction label as follows: Record the campaign number 83-C-2, dealer code and date on the blank campaign correction label and install on the radiator baffle where it is readily visible.

WARRANTY CLAIM INFORMATION

All dealers USING the terminal submission system are to submit campaign claims using their terminal. All other dealers are to submit campaign claims using the "yellow stripe" campaign cards. See page 59 of the Oldsmobile Claim Preparation Manual.

Operation No. Operation Labor Hours ------------ --------- ----------- V1480 Remove Pulse Wiper .2 hr. Relay Capacitor

.1 hour for clerical administration will be added to the above operation.

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.