So I starting having an issue with my 2003 chevy malibu where if I hit the brake, the reverse and turn signal light would light up on the back right rear side. After replacing the brake light bulb and the problem still persisting, I decided to take a better look at the electrical connectors.
Yep! there was the problem. The pigtail connector to the brake light, which connects to the bulb connector plate, had a broken pin which connects the ground wire. After doing some internet searches, I discovered that is a fairly common problem in GM vehicles from the early 2000, however it is easily fixes. I simple purchased a new ACDelco PT246 GM Original Equipment 6-Way Female Black Multi-Purpose Pigtail. It took about 15 minutes to replace. However, I also noticed that the pin on the connector plate was also badly damaged, so I ordered a new TYC 11-5157-20 Chevrolet Replacement Right Connector Plate. Now this connector plate is for the right side (passenger’s side). If you need the left side (driver’s side). It is TYC 11-5158-20 Chevrolet Replacement Left Connector Plate. The pigtail can be used for wither side. So in all, fixing my 2003 chevy malibu right rear brake light was relatively simple