This is long, so I apologize up front. Tested a lot of different stuff, and am running out of ideas.
Problem:
Rear brake/turn lights do not illuminate the marker function of the light with LED bulbs. Incandescent bulbs work just fine, all functions.
Background:
Pulled every inch of wire out of my 2000 Floe enclosed trailer. Installed alll new LED lights all the way around. Also installed junction box- everything ties back to there. I ran new brown and white wires to each of the front marker lights and 1 pair to the 7 rear marker lights.
Each turn signal gets its own brown/white/yellow (or green) set of wires. I tried to wire it so troubleshooting would be easier next time. My intent was to try and isolate the various lights into relatively isolated "circuits."
Troubleshooting Information:
Tow vehicle is an 05 silverado 3/4 ton dmax
Turn/brake running light/marker light function does not work.
Turn signal works.
Brake function works.
All running lights work.
Grounds are tested and verified good all the way around.
Tested and have ~11.4 volts at rear turn lights on trailer.
Ground shows 0.0v.
Green/Yellow wires in socket show 0.0 or -0.1
Tested and have ~12.6 volts at truck harness.
7 pin to flat 4 adapter is brand new and tests out good.
Fuses all check out, nothing is blown.
LED bulbs test out and function when hooked to 12v power supply (both functions- low power and high power)
The rear turn/brake LED bulbs in running light function work fine until I hook up the green or yellow brake/turn wire. When that wire is hooked up, the brake/turn running light function turns off.
I can hold the bulb in the socket so the 2nd contact on the bottom of the bulb does not touch the green/yellow contact in the socket, and it illuminates like the running light function should. As soon as I touch it to the turn/brake contact, it stops working.
Grabbed an old socket and did same test directly to truck, Tests out the exact same directly wired to the truck harness. Running light function works until green/yellow wire is brought into the mix.
Now here's the fun part. If I use a traditional incandescent light bulb, there are ZERO issues- everything functions 100% normal as it should. The only issue is with the LED 1157 bulbs and when the green/yellow wires are hooked up.
Does anyone have any ideas on what I can look for next?
It's a matter of personal pride at this point, yes, I could just give up and use 2 regular light bulbs for the turn/brake lights, but everything else is LED and I want to finish it out right.
Problem:
Rear brake/turn lights do not illuminate the marker function of the light with LED bulbs. Incandescent bulbs work just fine, all functions.
Background:
Pulled every inch of wire out of my 2000 Floe enclosed trailer. Installed alll new LED lights all the way around. Also installed junction box- everything ties back to there. I ran new brown and white wires to each of the front marker lights and 1 pair to the 7 rear marker lights.
Each turn signal gets its own brown/white/yellow (or green) set of wires. I tried to wire it so troubleshooting would be easier next time. My intent was to try and isolate the various lights into relatively isolated "circuits."
Troubleshooting Information:
Tow vehicle is an 05 silverado 3/4 ton dmax
Turn/brake running light/marker light function does not work.
Turn signal works.
Brake function works.
All running lights work.
Grounds are tested and verified good all the way around.
Tested and have ~11.4 volts at rear turn lights on trailer.
Ground shows 0.0v.
Green/Yellow wires in socket show 0.0 or -0.1
Tested and have ~12.6 volts at truck harness.
7 pin to flat 4 adapter is brand new and tests out good.
Fuses all check out, nothing is blown.
LED bulbs test out and function when hooked to 12v power supply (both functions- low power and high power)
The rear turn/brake LED bulbs in running light function work fine until I hook up the green or yellow brake/turn wire. When that wire is hooked up, the brake/turn running light function turns off.
I can hold the bulb in the socket so the 2nd contact on the bottom of the bulb does not touch the green/yellow contact in the socket, and it illuminates like the running light function should. As soon as I touch it to the turn/brake contact, it stops working.
Grabbed an old socket and did same test directly to truck, Tests out the exact same directly wired to the truck harness. Running light function works until green/yellow wire is brought into the mix.
Now here's the fun part. If I use a traditional incandescent light bulb, there are ZERO issues- everything functions 100% normal as it should. The only issue is with the LED 1157 bulbs and when the green/yellow wires are hooked up.
Does anyone have any ideas on what I can look for next?
It's a matter of personal pride at this point, yes, I could just give up and use 2 regular light bulbs for the turn/brake lights, but everything else is LED and I want to finish it out right.
