Right High Beam Inop, all other lights work properly
This is a 2006 Ram 3500 Quad-Dually with 115,000 miles. I just purchased it. Right high beam is inop. Changed all front bulbs and Right high beam is still inop. Traced the wire for continuity to the module on the other side. The wire is good. Is it a module problem ? All of the fuses seem good.
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Well, where to start... First there are 4 different headlamp systems available for 2001 Dodge Ram 1500.
> WITH Daytime Running Lights and WITH Quad Headlamps
> WITH Daytime Running Lights and WITHOUT Quad Headlamps
> WITHOUT Daytime Running Lights and WITH Quad Headlamps
> WITHOUT Daytime Running Lights and WITHOUT Quad Headlamps
So providing you with an EXACT flow chart of what happens depends on which system your truck is equipped with.
However, the general jist of it goes like this:
The Violet wire you mention is your power feed to the bulbs (high beam and low beam elements) from the headlamp fuse (HOT AT ALL TIMES). The dimmer switch basically determines which of the two headlamp elements is going to get grounded to complete the circuit. When the Violet/White wire gets grounded, that is low beam. When the Red/Orange wire gets grounded, that is high beam.
Just a little "Automotive Electrical Systems 101":
Your Headlamps work just like ALL automotive electrical circuits. The power goes from battery POSITIVE to battery NEGATIVE in order to complete the circuit. PERIOD! Every circuit on your vehicle is as simple as that. If you take a closer look at the wiring diagrams, you will see this.
wire a relay parallel into the low beam light power wires
run a fuse controlled wire from the battery to the relay
when in low beam the relay activates to turn on the lights
when in high beam there is no power to activate the relay so the lights go out
If you read the regulation carefully , you will see that is also required to have a separate on/off switch for the lights
I cant tell you off the top of my head, but the easiest way is as follows.
Turn on your low beams, with a test light or volt meter, find the wire that powers the low beams (it will lose power when you switch to high beam).
Once you have found that wire, wire the lights and relays as if the hot low beam wire is your "switch", it will supply the switch power source the 12v it needs to turn on the power to the lights.
I'd still vote for the bulb being bad. The high and low beams use two different filaments, so unless the bulb is physically broken, it is common for the low beam to be bad whilst the high beam is good.
That's why you see some people driving around with their high beams on -- they don't want to get stopped for a 'light out' citation..
When you take the bulb out to replace it, be sure to look at how it is mounted before removing. You don't want to accidently adjust your headling out of kilter.
first thing to do, go with the replacement of the light bulbs, high beam and low beam are two different fillaments on the ligh bulb, as for the rear also replace the bulbs, when your flasher rellay flashes faster, it means that there is less drop of current in the circuit, like only one light bulb working.