by Dale M. » Fri Dec 16, 2016 9:37 am
mariannf wrote:Dale M. wrote:If you have power and ground at the ends of the wire with light fixture disconnected, and then you connect the wires to fixture and you loose power to the probe... There are two possible scenarios,... One, bring there is problem with fixture... Two, there is problem with power from tow vehicle, meaning if the power to light trailer lamps comes through a "converter" the converter may be bad because it can not supply enough voltage (power) to light the actual fixture lamps ( probe takes very little power to light lamp) ... Since Both side have same result with the testing I would be suspicious of there being bad converter in tow vehicle if there is one or there is some confusion on how lamp fixture is wired.... Are by chance new lamps LED, if the are they are very specific how they are wired or they do not work....
Dale
Good to hear from you Dale and thanks.
The new lights aren't LED. I was wondering myself if I had a voltage problem.
Do you have any guidance (or links to resources) about how to identify 1) if i have a converter, and 2) if it is not working properly?
I was thinking that next I should test the voltage coming out of the tow vehicle side of the connector. I have a mulitmeter (honestly i haven;t used it before...got it free at HF). I foudn this video..does it look about right to you for how to proceed?
https://www.youtube.com/watch?v=3H5_g2lyOcsMany thanks in advance!
mariann
Video is good for process, but color codes for wires in video are not common... The colors on his wiring are white -black - white and green with function stamped on them ... Never seen this type of cable before... Most cables for trailer are white (ground) - brown (tail/marker) - yellow (left turn/ stop) and green( right turn/stop) ..
- 4-Way_Diagram[1].png (83.45 KiB) Viewed 1998 times
Might try taking bulb out of fixture and again testing your "connection" at point you lost power when you connected fixture wires to main wires....
Dale
Lives his life vicariously through his own self.
Any statement made by me are strictly my own opinion.
You are free to ignore anything I say if you do not agree.