SERVICE MANUAL UPDATE SEC. 8A- ELECTRICAL DIAGNOSIS. Buick Skylark 1989

MODELS AFFECTED: 1989 SKYLARK

The following pages reflect product changes. These pages are contained herein:

8A-1-0 INDEX

8A-1-1 INDEX

In addition, the following pages should be revised to reflect minor changes for late production, as noted:

8A-14-6 Change the 2 BLK/WHT wire between the Door Lock Relay Assembly, terminal D, and splice S305 to .5 BLK/WHT.

8A-20-2 Change the .5 BLK/WHT wire from splice S129 to .8 BLK/WHT.

8A-20-4 Change the .8 BLK/ORN wire from the Manifold Air Temperature (MAT) Sensor to .8 BLK/YEL.

8A-23-6 Change the .5 BLK wire from the Throttle Position Sensor (TPS), terminal B, to .8 BLK.

8A-67-1 Change the .5 DK BLU wire from the Engine Control Module ECM, terminal 2 of connector C2, to .8 DK BLU.

8A-67-1 Change the .5 DK GRN/WHT wire from the A/C Compressor Control Relay, terminal 2, to .8 DK GRN/WHT.

8A-114-0 Change the terminals on the Dome Light from B to A and from A to B.

8A-114-1 See Update Change for page 8A-114-0.

8A-114-3 Change the .8 BLK/ORN (40) wire from connector C102 to .8 DK BLU (909).

8A-114-3 New Ground G109 - Add a .8 BLK (150) wire from the Underhood Light to ground G109.

8A-130-0 See Update Change for page 8A-14-6.

8A-134-0 Change the .8 BLK/PNK wire from the Luggage Compartment Lid Release Solenoid to 2 BLK/PNK.

8A-140-0 Change direction of connector C306.

8A-151-0 Change the BLK (900) wire from the capacitor to BLK (899).

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.