I had one of my truck-lites go out recently and I'm outside of warranty, tempted to try something new. I let em know I'm at well under the rated hours, and that it is in perfect shape, and that it's just the low beam portion that went out, they seemed uninterested. Customer service offered no discount program or anything like that, so i'm expected to just buy a fresh one and hope it goes out in the first 3 years I guess? I definitely enjoyed them and got my moneys worth, but why not try something new for less money and see if they're decent? The truck lites have come down in price quite a bit it seems though.
Truck-Lite 27450C One Rectangular LED 5" X 7" Ford GM Van Jeep XJ YJ Headlight<br /> Replaces 5" x 7" or 7" x 6" headlamps -- When properly mounted, exceeds FMVSS-108 and CMVSS-108 DOT requirements for low beam and high beam performance Excellent option for light, medium and heavy-duty trucks...
I bought the Napa led lights and they fit great!!!! Cost me about $90 each . I spent an hour trying to get them to work. Finally changed enough pins to get them to work on high beam only. So they are capable but if you figue out the wires let me know. Yes I used resistors.
thanks for any help
I bought the Napa led lights and they fit great!!!! Cost me about $90 each . I spent an hour trying to get them to work. Finally changed enough pins to get them to work on high beam only. So they are capable but if you figue out the wires let me know. Yes I used resistors.
thanks for any help
1. did your headlights work OK on low & high beams beforehand?
2. what model/brand are the original headlights?
3. did NAPA lights come with any instructions? Post those here.
4. did they come with resistors? Ballast resistors are only needed for LED turn-signals to prevent hyperflashing. They fool flasher-relay into flowing more current like original incandescent bulbs. Draw accurate diagram of how you have resistors wired-in and post here.
5. post some photos of what terminals at back of light looks like
6. post some photos of headlight connector on car's harness
You shouldn't have to change out any pins, have you got pics of these things and the resistors you ran? If they have the same 3 prong design as ours it should be good...
I had my brother-in-law law in. Tried to get them to work but no bueno. They Will not be plug and play. He said he may be able to add a relay and make it work. i guess the issue is the fog lights and the switching power that these lights will never recognize.
You need to do the foglight rewire in the center console (then you can use them as driving lights when the headlights are off) as well as add resistors inline with the headlights so the high beam indicator on the dash works properly. Nothing needs to be done at the actual headlight plug although I'd suggest soldering on a nice new pigtail as the wiring and plug tends to get worn out, corroded and crumbly.
Toyota Supra has reverse polarity (GND is switched to the low and high beam) - these headlights require B+ to be switched to get the right polarity thru the diodes (typical US vehicles and other). Headlights with filaments (e.g. halogen) don’t care about the polarity and work fine in the OEM circuit. Per my brother in law the Engineer and former 85 ptype owner
if you find this in error please enlighten us This is frustrating
Okay I'm going to explain exactly how this works. You will need to reference the wiring diagrams section 4-4 for the headlights and 2-1 for the fog lights.
The first thing you need to understand is an incandescent bulb acts like a low impedance resistor in a circuit. There is continuity between the terminals. So if only one terminal is connected to power it will 'pull up' the other side to +12v if it is not grounded (bulb off). A LED or HID does not work like this - there is no continuity between the terminals.
As per 4-4 when the headlights are switched off the main headlight relay is off so they get no power.
When the headlamps are switched to on (one click past the parking lights and high beams off) the retractor relay activates the motors to raise them and then turns the headlight relay on. This provides power to the lights which pulls up the ground side of the high beams to +12v since the low/high beam switch is only grounding the low beam side. The pulled up ground of the high beam is connected to the fog light switch see 2-2 which when closed uses this to power the coil in the fog light relay. You can rewire this in the center console to get power from the illumination circuit instead so the fogs will work when the system is in parking, low beams or high beams. This is a common mod just search the forum. Obviously with LED/HID headlights they won't pull the high beam ground side to +12v because there is no continuity so the fogs won't work unless you do the rewire or add some continuity.
When the high beams are switched on, it grounds the high beam lamp only. So the fogs turn off as the power for the switch and relay coil is now a ground. The ground side of the low beams is disconnected so it is pulled up to +12V. This is connected to the power side of the high beam indicator on the cluster. Again with HID or LED lamps this won't work as there isn't continuity so the high beam indicator won't work. Only easy fix is to add some continuity.
The good news is lots of older cars work like this. So there are products on the market that add a low impedance resistor in parallel with the headlamp to provide this continuity. Because it is in parallel it won't drop the voltage going to the lamp, it just used a bit of current when the light is on. If you use one of these with each LED or HID lamp then the system will work as designed. I still recommend the fog light rewire though because it allows you to use them as driving lights with the parking lights on when driving at dusk/dawn.
Headlight LED load resistors prevent flickering and "bulb out" error messages. These 6 ohm 50-watt load resistors compensate for the low power draw of H4 LED bulbs so that they can communicate properly with your vehicle's computer system. They can also be used in conjunction with standard LED...
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Make sure you use resistors. Some are a little circuit with capacitors and only work on newer cars. For ours you need the resistor based ones. There are lots on Amazon but you need to get the right ones.
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Here is the fog light rewire thread, he bridges it with a new wire but I just cut the power wire to the switch and connected it to the power side of the map light as it is a permanent mod for me.
The fog light mod seems to have a couple different ways of accomplishing the same goal. I think I've found the best way to do it. Some people like to use the map light's power wire and actually CUT the wire and splice it to the fog light power wire. Not the best option for people who still have...
Here's relevant diagram. High-beam indicator & foglight trigger are on voltage-divider circuit, interesting...
@Vokey975j, I'm not kidding when I tell you this is an easy 5-minute fix. I used to build and sell heavy-duty battery-cables & headlight harness for Porsches with 50-year warranty. It's been 25-years and not single one has failed or come back. They sometimes pop up on eBay selling for double what I charged for them.
My shoppe installed aftermarket standalone EFI systems. Would build vehicle-specific harnesses for Accel DFI, Austronic, Autotronic, Electromotive TEC, Haltech, LinkECU, Megasquirt, MoTeC, SDS-EFI, Wolfe 3D, systems. Then dyno-tune.
I built my own wideband O2-sensor from individual parts.
So I know what I'm talking about when I tell you this is simple 5-minute fix. It took me longer to write this post than it would take for you to fix this problem. But you gotta give me more data to work with.
1. Please confirm which wires are plugged into which terminal at headlight bulb itself. Post photo of back of headlight plug on harness showing wire colours going into connector.
2. Get multimeter and learn how to use it to measure voltage and resistance. I'll probably need you to take some readings later once we know where each wire goes.
5-minutes to get your lights working!!! You've probably wasted way more time than that already!!!
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