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Car Forum / Volvo Cars / May 2005One light always on
Have a '92 Volvo 240GL. The right rear brakelight is the problem. When I put the bulb in with just the car lights on, all lights are fine except for the right brake light. It is lit up in the "brake applied" position(brighter than the normal taillight). When I push the brake with it like this, the fuse blows. The circuit board was pretty old and raggy, so I have replaced it and problem still exists. Both brake lights are new. I can't figure out what is causing this? With the right brake light removed (this is the only way I can press the brakes without blowing the fuse) everything works fine...including the left brake light and the 3rd (rear window light) brake light. Can anyone help me? I don't know what is going on. > Have a '92 Volvo 240GL. The right rear brakelight is the problem. > When I put the bulb in with just the car lights on, all lights are fine [quoted text clipped - 8 lines] > > Can anyone help me? I don't know what is going on. Look at the wiring inside the car, it's possible one of the wires has chafed and is shorting to ground. check wiring in trunk especially if any lights are in truck lid itself the wiring there likes to break especially if you tend to load the trunk full may have pinched a wire to ground on the truck hinge common problem with toyota's too. > Have a '92 Volvo 240GL. The right rear brakelight is the problem. > When I put the bulb in with just the car lights on, all lights are fine [quoted text clipped - 8 lines] > > Can anyone help me? I don't know what is going on. > Have a '92 Volvo 240GL. The right rear brakelight is the problem. > When I put the bulb in with just the car lights on, all lights are fine [quoted text clipped - 8 lines] > > Can anyone help me? I don't know what is going on. Something is screwed up in the way the taillight is wired, or maybe you have the wrong bulb holder. What you're going to have to do is compare your taillight circuit boards, and make sure that the bad one is an exact mirror image of the good one, right down to bulb holders and which wires connect where. Removing the taillights from the car may be the best way to accomplish this.  SignatureMike F. Thornhill (near Toronto), Ont. Replace tt with t (twice!) and remove parentheses to email me directly. (But I check the newsgroup more often than this email address.) >> Have a '92 Volvo 240GL. The right rear brakelight is the problem. >> When I put the bulb in with just the car lights on, all lights are fine [quoted text clipped - 15 lines] > wires connect where. Removing the taillights from the car may be the > best way to accomplish this. I vote for the holder. Wiring shorts should blow the fuse regardless of whether the bulb is in or not, unless I'm missing something. Mike I thought about that too, but I used the left brake light holder for the right and it still does the same thing. I can't tell any difference at all between the holders, but I could be wrong. >I thought about that too, but I used the left brake light holder for > the right and it still does the same thing. I can't tell any > difference at all between the holders, but I could be wrong. Are you sure you have the right bulbs? For example, dual filament bulbs instead of single filament? Mike Yes...I even bought 2 new bulbs to make sure nothing was wrong with the bulbs. > Yes...I even bought 2 new bulbs to make sure nothing was wrong with the > bulbs. Be sure that isn't like still getting a wrong number when using redial... they should be dual filament (two contact patches on the end instead of one.) Did this just start one day, or was it after changing something? Mike > > Yes...I even bought 2 new bulbs to make sure nothing was wrong with the > > bulbs. [quoted text clipped - 6 lines] > > Mike Going up a couple of posts... The bulb holder for the brake/tail should be noticeably different from left to right, black on the left and white on the right. (All other holders should be black, and identical from left to right, and this info only applies to sedans, wagons use black holders all around.) SignatureMike F. Thornhill (near Toronto), Ont. Replace tt with t (twice!) and remove parentheses to email me directly. (But I check the newsgroup more often than this email address.) Hmmm....I actually have all black holders. It has been working for many years with those holders though. Car is actually my girlfriends, so I don't always have it to work on or check things out. Problem just started to happen, I didn't change anything. I am leaning more towards a short somewhere as well. The wires are in a plastic type tubing and are tucked away pretty good, so it will be tough to get to them. I would love to have a wiring diagram to help out though. > > > Yes...I even bought 2 new bulbs to make sure nothing was wrong with the > > > bulbs. [quoted text clipped - 19 lines] > Replace tt with t (twice!) and remove parentheses to email me directly. > (But I check the newsgroup more often than this email address.) Actually, all the bulb holders are black. The problem just started happening. It is actually my girlfriend's car, so I don't have it to work on all the time. I think it has got to be a short somewhere though. I need to try and find a manual for it to see some wiring diagrams. Does anyone know if the wiring to the right taillight is feeding from the left taillight...or how it is run? > > > Yes...I even bought 2 new bulbs to make sure nothing was wrong with the > > > bulbs. [quoted text clipped - 19 lines] > Replace tt with t (twice!) and remove parentheses to email me directly. > (But I check the newsgroup more often than this email address.) > Actually, all the bulb holders are black. The problem just started > happening. It is actually my girlfriend's car, so I don't have it to [quoted text clipped - 3 lines] > Does anyone know if the wiring to the right taillight is feeding from > the left taillight...or how it is run? With the wrong holder (assuming a 3 contact holder for a double filament bulb), all that happens is the taillight comes on during braking and vice versa. Both taillight and brake lights are fed separately from the bulb failure relay, which is under the dash, so they have their own wires. (Left and right taillights are even on different fuses.) There's a third "tail light" wire that bypasses the bulb failure relay used for the license lights. license light - white left tail - red right tail - brown left brake - yellow-gray right brake - yellow My guess is the bulb holder is either defective (2 of the metal conductive strips are touching) or the part of the metal contact strip that touches the circuit board is bridging 2 circuit board traces. SignatureMike F. Thornhill (near Toronto), Ont. Replace tt with t (twice!) and remove parentheses to email me directly. (But I check the newsgroup more often than this email address.) |
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