Re: Headlights - all OFF when high beams activated
[Re: RobX4406]
#1523206
10/25/13 10:01 PM
10/25/13 10:01 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
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Posts: 14,889
up yours
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Only one wire should be hot at any time. One for lows or one for highs. I would test at the switch and at the socket for the lights. Sounds like you may have an issue at the high beam power splice under the hood. Again, the ground circuit SHOULD be ok, but since the current is doubled up in high it doesn't hurt to double check it, but you'd usually have weak lights with a poor ground, not completely zero light.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: Headlights - all OFF when high beams activated
[Re: MONC]
#1523208
10/26/13 01:23 AM
10/26/13 01:23 AM
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Joined: Aug 2011
Posts: 1,028 NB, Canada
moparfan53
super stock
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I had the exact same problem with my '69 Charger. After checking switches, bulkhead connectors etc, it turned out to be a corroded/dirty terminal in the wiring connector beside the battery. Regarding the circuit breaker in the h/lamp switch, I had one go bad in another car. In that case, the high beams would come on for a few seconds, then go out. Let us know what you find.
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Re: Headlights - all OFF when high beams activated
[Re: Mopar-Al]
#1523209
10/26/13 03:49 PM
10/26/13 03:49 PM
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Joined: Apr 2004
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Quote:
I can only give my info learned that happened on my 72 cuda years ago. I went through the same issue. Everytime I hit the brights, they quit working. A guy at the dodge dealership told me my voltage reg was putting out too much and running wide open full charge. Turned out the ground was bad on the volt reg and was the culprit. I went through 2 regs before I finally got the gremlin. I changed all that everyone else said also
Thanks very much for the reply. This feedback is helpful. As I have found most of the time my electrical gremlins had to do with bad grounds. The fact the car was just painted makes me lean toward this as well. That's why I asked if the hi-beam dimmer switch needed to be grounded as well.
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Re: Headlights - all OFF when high beams activated
[Re: moparfan53]
#1523210
10/26/13 03:52 PM
10/26/13 03:52 PM
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Joined: Apr 2004
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Quote:
I had the exact same problem with my '69 Charger. After checking switches, bulkhead connectors etc, it turned out to be a corroded/dirty terminal in the wiring connector beside the battery.
Didn't think of this either. Thanks very much. Will check that out too
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Re: Headlights - all OFF when high beams activated
[Re: MONC]
#1523211
10/26/13 09:14 PM
10/26/13 09:14 PM
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Joined: Jan 2003
Posts: 6,232 JERSEY
RJS
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UPDATE with my Demon today!!! Went back out to the garage and pulled out the headlights to meter the pigtails again. I do have power on Violet for low beams and red when in Hi Beam mode. So I took the forward harness off the bulkhead and unwrapped it again but still saw no physical problems. So now I put the meter on OHMs and started checking the Red wire from headlight pigtail back to bulkhead connector and what do I see? Wait for it, NO CONTINUITY!!!!!!!! Started to sex-up the wire (wiggle it) and it was making and breaking. Bad crimp on the RED at the bulkhead side of the forward light harness. Now Hi beams and Low beams like everyone else. Thanks for this thread to motivate me again and thanks for the help from people with suggestions. Ron
Last edited by RJS; 10/26/13 09:15 PM.
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Re: Headlights - all OFF when high beams activated
[Re: RJS]
#1523212
10/27/13 04:22 PM
10/27/13 04:22 PM
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Ok well we got RJS' light problem fixed now mine. I first went to the connection by the battery as that was the easiest to get to. The connections were all gummed up. I cleaned them the best I could put some dialectric grease in there and now... When I activate lights the high beams go on , BUT should the lows go off or stay on?? I haven't had a car with 2 lights on each side in a while I can't recall
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Re: Headlights - all OFF when high beams activated
[Re: buildanother]
#1523222
11/10/13 02:22 PM
11/10/13 02:22 PM
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* UPDATE * Fixed the issue. It was that connector by the battery. Went back and cleaned it up some more and now when high beams are one, all 4 lights are on, low beam only the lows are on. Thanks to everyone for their insights and special thanks to Moparfan53 for the pic reference and the answer to my problem Onto much bigger issues...
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