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04-07-2013, 10:48 AM | #1 |
Member
Join Date: Sep 2010
Location: Aurora, CO
Posts: 59
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Brake light wiring
Hey everyone,
I am trying to figure out why one brake light would be very bright, as it should be and the other light is very dim, only barely lighting the filament. Any thoughts? |
04-07-2013, 10:52 AM | #2 |
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Join Date: Jan 2011
Location: Cape Coral, Fl
Posts: 75
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Re: Brake light wiring
Check your ground
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04-07-2013, 11:22 AM | #3 |
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Join Date: May 2010
Location: Mpls, MN
Posts: 27,582
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Re: Brake light wiring
I agree with Larry, that it sounds like a poor ground. Take a jumper wire and touch the housing to a good ground. If no change, then remove the lens and touch the light socket body to a good ground.
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04-07-2013, 12:42 PM | #4 |
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Join Date: Jun 2010
Location: Temecula, CA
Posts: 4,066
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Re: Brake light wiring
Tail lights are grounded through the fender, the frame, etc. Many points to check.
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04-07-2013, 03:08 PM | #5 |
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Join Date: May 2010
Location: brentwood, ca
Posts: 4,214
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Re: Brake light wiring
Try my trick for cleaning the barrel of the socket for each light. When you disassemble the tail lite assembly, use a plumbers pipe fitting wire brush to brighten the light socket after you remove the wire/pig tail. Also clean the threads of the mounting screws on the back of the tail light assembly. Bob
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04-08-2013, 11:50 AM | #6 |
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Join Date: Sep 2010
Location: Aurora, CO
Posts: 59
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Re: Brake light wiring
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04-08-2013, 12:00 PM | #7 |
Senior Member
Join Date: May 2010
Location: So Cal
Posts: 8,711
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Re: Brake light wiring
Is the bulb the right voltage, try swapping the bulbs and see what happens.
Bob |
04-08-2013, 12:27 PM | #8 |
Senior Member
Join Date: May 2010
Location: Pine, AZ
Posts: 792
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Re: Brake light wiring
Check the voltage. It should be about 6.2 V for 6V system and 12.4 for 12V system. If it is lower than that check the wiring from the driver's side to the passenger side especially the bullet connections. Solder them instead of crimping as makes a better electrical connection. You should also make sure the wiring is not a jury rig and using very small electrical wire instead of the proper size.
Bulbs are 1156 for 12V and 1133 for 6V 32 candle power or 1141 for 12V or 1129 for 6V 21 candle power for the Stop light. |
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