IN 2002 Buick LeSabre left turn rear light and left brake light don't work. Whenturn signal switch is turn left blinker light has with very high frequency.

20

Asked by Apr 06, 2013 at 12:38 PM about the 2002 Buick LeSabre Custom Sedan FWD

Question type: Maintenance & Repair

IN 2002 Buick LeSabre left turn rear light and left brake light don't work. When turn signal switch is turn left  blinker light has with very high frequency.

9 Answers

11,155

the high frequency of blinks means you need to replace one or both bulbs on that side.

2 of 2 people found this helpful.
102,845

It sounds like you could have lost the ground wire connection on that corner. Check the continuity to ground with a meter if you have one. You can install a new ground wire from the black wire to a metal screw into the body of the car.

3 of 3 people found this helpful.
20

all bulbs are OK

20

when I click "lock doors' all lights are on, so that bulbs are OK

105

When you lock doors and lights come on that is that one bulb or two coming on? Replace the Brake / Turn light and that should take care of it. The full light assembly must be removed to get to bulbs. I had the same thing on my 02 LeSabre.

20

Thank you. But this is not the case. I looked attentively. All back rear lights were on (identically on the left and right sides; I don't remember : 3 or 4). An important factor you missed. When I tested left and right turn lights, frequency of blinker inside the car is about twice higher for the left side, which doesn't work (left rear light didn't work but the front one works).

1 of 1 people found this helpful.
20

Thanks. Without electric scheme it is difficult to determine which fuse controls the left turn and brake circuit. As to ground, usually there is only one ground wire. Since all other electric modes are OK, this is not the reason.

1 of 1 people found this helpful.

The rear bulb has two filaments. The one for thebreak/turn is burned out. The tail light one is good. Replace the bulb

30

The multifunction switch is a known failure part....try and get to the probably three plugs running down the steering column and clean or reseat for good connections. and see it that helps, if not may need replace it, that is what I am doing at this time with a 2004. BE VERY careful around the steering column and the air bag wires and connections so as not to set it off....

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