Re: Brake Light Problem on 2000 JGC
Jeff, thanks for the info, and I will work on the ground situation.
But, as I said in my original post, I have put a new bulb in the left brake light, so I doubt it is a bad one. --James-- |
Re: Brake Light Problem on 2000 JGC
Jeff, thanks for the info, and I will work on the ground situation.
But, as I said in my original post, I have put a new bulb in the left brake light, so I doubt it is a bad one. --James-- |
Re: Brake Light Problem on 2000 JGC
Jeff, thanks for the info, and I will work on the ground situation.
But, as I said in my original post, I have put a new bulb in the left brake light, so I doubt it is a bad one. --James-- |
Re: Brake Light Problem on 2000 JGC
The brake light and signal ground through the fizture bolts, the running
lights ground through the wiring harness. You have changed all the rears out, but you still have tow up front connected to the brake circuit, the front signals. Do the signals work? They use the same bulb element as the brake lights. If not, then I would next look at the front bulb for a loose glass part or filament short.... If it is ok, then I would be looking at any trailer hitch plugs. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's James wrote: > > Brake lights work fine, when neither the parking lights or headlights are > on. > > When either the parking lights or headlights are turned on, the left > brakelight goes off !!! > > I have put brand new bulbs in left/right/upper-center brakelight housings. > > Again, the brake lights operate ok, as long as I don't have the headlights > or the parking lights on. The minute I turn either of them on, the LEFT > brake light will not work !!! This is truly weird. > > Can anyone help me ??? > > Thanks !! > > --James-- |
Re: Brake Light Problem on 2000 JGC
The brake light and signal ground through the fizture bolts, the running
lights ground through the wiring harness. You have changed all the rears out, but you still have tow up front connected to the brake circuit, the front signals. Do the signals work? They use the same bulb element as the brake lights. If not, then I would next look at the front bulb for a loose glass part or filament short.... If it is ok, then I would be looking at any trailer hitch plugs. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's James wrote: > > Brake lights work fine, when neither the parking lights or headlights are > on. > > When either the parking lights or headlights are turned on, the left > brakelight goes off !!! > > I have put brand new bulbs in left/right/upper-center brakelight housings. > > Again, the brake lights operate ok, as long as I don't have the headlights > or the parking lights on. The minute I turn either of them on, the LEFT > brake light will not work !!! This is truly weird. > > Can anyone help me ??? > > Thanks !! > > --James-- |
Re: Brake Light Problem on 2000 JGC
The brake light and signal ground through the fizture bolts, the running
lights ground through the wiring harness. You have changed all the rears out, but you still have tow up front connected to the brake circuit, the front signals. Do the signals work? They use the same bulb element as the brake lights. If not, then I would next look at the front bulb for a loose glass part or filament short.... If it is ok, then I would be looking at any trailer hitch plugs. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's James wrote: > > Brake lights work fine, when neither the parking lights or headlights are > on. > > When either the parking lights or headlights are turned on, the left > brakelight goes off !!! > > I have put brand new bulbs in left/right/upper-center brakelight housings. > > Again, the brake lights operate ok, as long as I don't have the headlights > or the parking lights on. The minute I turn either of them on, the LEFT > brake light will not work !!! This is truly weird. > > Can anyone help me ??? > > Thanks !! > > --James-- |
Re: Brake Light Problem on 2000 JGC
The brake light and signal ground through the fizture bolts, the running
lights ground through the wiring harness. You have changed all the rears out, but you still have tow up front connected to the brake circuit, the front signals. Do the signals work? They use the same bulb element as the brake lights. If not, then I would next look at the front bulb for a loose glass part or filament short.... If it is ok, then I would be looking at any trailer hitch plugs. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's James wrote: > > Brake lights work fine, when neither the parking lights or headlights are > on. > > When either the parking lights or headlights are turned on, the left > brakelight goes off !!! > > I have put brand new bulbs in left/right/upper-center brakelight housings. > > Again, the brake lights operate ok, as long as I don't have the headlights > or the parking lights on. The minute I turn either of them on, the LEFT > brake light will not work !!! This is truly weird. > > Can anyone help me ??? > > Thanks !! > > --James-- |
Re: Brake Light Problem on 2000 JGC
"James" <jnipperxxx@nospamfdn.com> wrote in message news:q_GdnVZ8neaGKPbfRVn-iQ@comcast.com... > Jeff, thanks for the info, and I will work on the ground situation. > > But, as I said in my original post, I have put a new bulb in the left > brake > light, so I doubt it is a bad one. > That is not a safe assumption, I have taken out a bad bulb and put in another bad bulb on many occasions. The trick is to test the bulb before you put the lens cover back on. Take the lens cover off of BOTH sides, then take a known good bulb and put it in the offending socket. If the problem follows the bulb, then the socket is needing attention, if the good bulb works on both sockets, then the offending bulb is bad. There are two filiments inside the bulb, one for the running lights and another for the brake lights. Use a multi meter, or multiple bulbs and sockets, to test the integrity of a bulb. If a bulb works in one socket but not another, then the offending socket is the problem, if the bulb fails in more than one socket, then the bulb itself is bad. The common point on both bulbs and sockets is the ground, which is the case of the bulb and the outside of the socket. |
Re: Brake Light Problem on 2000 JGC
"James" <jnipperxxx@nospamfdn.com> wrote in message news:q_GdnVZ8neaGKPbfRVn-iQ@comcast.com... > Jeff, thanks for the info, and I will work on the ground situation. > > But, as I said in my original post, I have put a new bulb in the left > brake > light, so I doubt it is a bad one. > That is not a safe assumption, I have taken out a bad bulb and put in another bad bulb on many occasions. The trick is to test the bulb before you put the lens cover back on. Take the lens cover off of BOTH sides, then take a known good bulb and put it in the offending socket. If the problem follows the bulb, then the socket is needing attention, if the good bulb works on both sockets, then the offending bulb is bad. There are two filiments inside the bulb, one for the running lights and another for the brake lights. Use a multi meter, or multiple bulbs and sockets, to test the integrity of a bulb. If a bulb works in one socket but not another, then the offending socket is the problem, if the bulb fails in more than one socket, then the bulb itself is bad. The common point on both bulbs and sockets is the ground, which is the case of the bulb and the outside of the socket. |
Re: Brake Light Problem on 2000 JGC
"James" <jnipperxxx@nospamfdn.com> wrote in message news:q_GdnVZ8neaGKPbfRVn-iQ@comcast.com... > Jeff, thanks for the info, and I will work on the ground situation. > > But, as I said in my original post, I have put a new bulb in the left > brake > light, so I doubt it is a bad one. > That is not a safe assumption, I have taken out a bad bulb and put in another bad bulb on many occasions. The trick is to test the bulb before you put the lens cover back on. Take the lens cover off of BOTH sides, then take a known good bulb and put it in the offending socket. If the problem follows the bulb, then the socket is needing attention, if the good bulb works on both sockets, then the offending bulb is bad. There are two filiments inside the bulb, one for the running lights and another for the brake lights. Use a multi meter, or multiple bulbs and sockets, to test the integrity of a bulb. If a bulb works in one socket but not another, then the offending socket is the problem, if the bulb fails in more than one socket, then the bulb itself is bad. The common point on both bulbs and sockets is the ground, which is the case of the bulb and the outside of the socket. |
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