How to Install LED Light Bulb Load Resistor for Use with Trailer with LED Lighting

Updated 03/12/2020 | Published 09/22/2015

Question:

2013 ford escape. Proper installation ? 230004a.

asked by: Don

Expert Reply:

The Diamond LED Light Bulb Load-Resistor Kit # DI34ZR wires in parallel with each trailer lighting circuit. For a trailer with LED lighting (that does not present the same electrical load as an incandescent type bulb) you will wire one resistor inline with each circuit, so for a typical 4-pole installation you'll need three, for left turn/stop, right turn/stop and running light circuits. The kit includes quick-splice connectors.

expert reply by: Adam R

3/9/2020

Ive installed load resistors on brake/turn circuits2 after the converter 5 to 4 wire and hyper flashing has stopped when turns are on but when I apply brake they hyper flash. Should I install another resistor before the converter for the brake only? Weird

Chris R.

3/11/2020

A couple of things you will want to check here. I would first make sure the converter box you're using is properly grounded. Verify that the ground wire is securely attached and there isn't any debris or corrosion getting in the way of a good connection. A weak ground could be allowing too much power to come through. It also wouldn't hurt to check your signal light fuses under the hood to make sure they're all in good condition. You really shouldn't need to add any more resistors to the equation. Let me know if the above doesn't help and we can go from there.

3/11/2020

Grounds a clean and secure. New fuses.

Chris R.

3/12/2020

You could try adding a resistor to just the brake light circuit before the converter like you mentioned. This may provide enough resistance to prevent that hyper-flashing but I can't be certain. Please let me know what you find and I'm going to keep looking into this for other possible solutions if it doesn't work.