For 1990-2009 cars

# DOOR JAMB SWITCH CORROSION NEW SWITCH SERVICE PROCEDURE

#### VEHICLES AFFECTED: 1988-89 BUICK REATTA

Some early 1988 Reattas may exhibit door jamb switch corrosion leading to any of the following comments:

o Unwanted theft alarm o Unwanted interior light operation o Battery drain

To eliminate switch corrosion, a new style door jamb switch with integral jumper harness was phased into production on 1988 model Reattas and will be used on all 1989 Reattas, refer to figure. Cars built with both old and new style door jamb switches should be serviced with the new switch and jumper harness, P/N 3520112, which is currently available from CANSPO. Cars with the new switch and jumper harness will require a new switch service procedure should the door jamb switch require service.

Service procedure for old style door jamb switches:

1. Remove one screw and pull door jamb switch out. 2. Disconnect door jamb switch. 3. Connect new door jamb switch with integral jumper harness. 4. Remove carpet retainer and move carpeting from kick panel area to expose wiring harness. 5. Pull door jamb switch harness and jumper connection through quarter panel and into the instrument panel area. 6. Install door jamb switch and screw. 7. Carefully push excess wiring into instrument panel area. 8. Reinstall carpeting and carpeting retainer.

Service procedure for new style door jamb switches:

1. Remove carpet retainer and move carpeting from kick panel area to expose wiring harness. 2. Remove one screw and gently pull door jamb switch and jumper out. 3. Disconnect door jamb switch with integral jumper harness. 4. Connect new door jamb switch with integral jumper harness. 5. Pull door jamb switch harness and jumper connection through quarter panel and into the instrument panel area. 6. Install door jamb switch and screw. 7. Carefully push excess wiring into instrument panel area. 8. Reinstall carpeting and carpeting retainer.

Use the most applicable labour operation from the Canadian labour Time Guide and claim 0.2 hours each side.

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.