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My brake light no longer works and turn signal no longer works on the left side...The light does turn on though.I've tried multiple bulbs for the turn and brake.The turn signal blinks super fast on my cluster also.its the left side

Fuse maybe?

 
Rep Power: 308

I would check the grounds for that side.

 
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shiat...i dont know where to look for that

 
Rep Power: 308

Black wiring that connects to the metal chassis of the car. Start at the bulbs socket and go backwards.

 
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what am i looking for though?

 
Rep Power: 308

Make sure the connection point at the chassis is tight (connector ring terminals are held tight to chassis with screw) You could try removing the screw and terminals and clean grounding area and connectors with some sandpaper and re-secure.

What year are we talking about ??

 
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2002 civic...lx model

 
Rep Power: 308

Brake and turn signal both out on left side only ??

 
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exactly...not seeing any issues with grounding

 
Rep Power: 308

Grounds O.K. ??

Grab a cheap 12 Volt test lamp at the auto store. Or a cheap DMM and test if voltages present. Inspect sockets terminals to make sure they are not damaged.

I have the wiring page available if you need it. PM with E-mail address and I can send it to you.

 
Rep Power: 243

this might sound a lil dumb i had the same problem in one of my prevent car i own.. it was a wire getting pitch somewhere.. try putting a higher fuse in to the fuse box..
do u have aftermarket side mirriors?? the one with the led lights?

 
Rep Power: 388

^ if the wire isnt getting pinched, then a larger fuse will blow the bulbs.

Got a voltage meter? - compare the two sides.

 
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na i found out the problem last night...its the part you put the bulb to.the little medal pieces inside came off...i had an extra but cant find the biznatch...hope honda doesnt charge too much

 
Rep Power: 308

The sockets should run $6-$10 my guess. Nice thing is they are easy to change do to the connectors used.