bigblockmopar66
Member
Hey guys. My headlights will not work unless the high beams are on. When the high beams are on, all 4 lights work. Could this be the headlight switch? Thanks for your help.
Headlight trouble
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Bryan
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Normally when this happens it's the dipper switch located on the left hand floor of the car. That's the first place I would check. They are pretty standard, easy to replace, and run about 5-10 dollars at most auto parts stores. If I remember right, C=Mopar, Ford and AMC used interchangable three wire switches.
bigblockmopar66
Member
Bryan, are you talking about the high beam switch on the floor?
commando1
Old Man with a Hat
I call'em dimmer switches....
Yes. It's the high beam switch on the floor.
Yes. It's the high beam switch on the floor.
Bryan
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Yep, that's the one. Sorry, I spent a lot of years in the UK in my 'ute and still get some terms mixed around.
commando1
Old Man with a Hat
Then you can tell everyone here with a straight face what Spotted Dick is....
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Bryan
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In england it is a dessert food......... Here a visit to a specialist??:sleepy3:
bigblockmopar66
Member
Why would it be the dimmer switch? The high beams are working fine. The problem is when I pull the headlight switch to put the headlights on, they do not go on. When I press the dimmer switch, the headlights go on along with the high beams. Please correct me if I'm wrong, but wouldn't the headlight switch on the dash need to be replaced?
300rag
It's Not Going to Shift Itself
The dash switch would be OK because it feeds the floor switch. This switch will either power the low beams or the high beams. It would appear that the high beam position is working correctly and the low beam output is defective.
Bryan
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Expanding a bit on what 300rag said, in low position only the lows work, in high position all four lights work. If the low position is bad, the low beams wont work and the highs are turned off anyway. Sometimes they will spring to life again if you quickly push the switch several times, but it is better to just replace the it. If it is iffy, it could go out on you again at the most inopportune time.
bigblockmopar66
Member
Thanks for your help guys. Ordered a dimmer switch yesterday. I'll let you know how it works out.
bigblockmopar66
Member
Just replaced the dimmer switch and still have the same problem. Should I replace the dimmer switch connector? Or could the problem be the headlight switch itself?
I had a 71 years ago that did exactly that and it was the dimmer. So much was the short that it melted the connector to the dimmer. I am surprised to see you are still having trouble with a new dimmer. Only from experience be sure that your connector is good and is not shorting out. Go ahead and replace the switch, its not going to hurt.
commando1
Old Man with a Hat
How can anybody think of doing an electrical diagnosis without starting with this????
Easy, keep buying parts working up the chain until you find the right one. Most of us backyard guys have to use reasoning and common sense to figure things out. The ten bucks it would cost to buy that thingamajig is the price of dinner for the family.
commando1
Old Man with a Hat
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Is that what that is called? How do you use it? I may have one somewhere............nope....nope I do not own one.
commando1
Old Man with a Hat
:Groaner:
has2bmopar
Senior Member
Is it possible that the obvious was overlooked?
Try changing a headlight, it could be burned out on the low side....
Then change the other one.
Try changing a headlight, it could be burned out on the low side....
Then change the other one.
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