- Feb 23, 2024
- 125
- 268
Question for all
Has anyone here successfully managed to trigger a relay for auxillary lights using signal from the high beams? I have a few ideas, but nothing concrete.
One of the options is a harness with a trigger wire spliced into it that fits into the back of a headlight and plugs into the factory harness. I would route the trigger wire to a relay- the aux lights would be powered direct to the battery.
I have heard that these systems are sensitive, but to my limited knowledge of electrical systems I cant imagine how this (stealing a few milliamps) could cause issues for the light or control module.
Another spitball idea is wiring a current sensitive relay to 1 of the headlight fuses that only triggers when volts at the fuse exceed a certain value (assuming the high beams draw more current than the low beams or drl).
Anyone got any ideas or thoughts on my ideas?
Thanks for your help!
Has anyone here successfully managed to trigger a relay for auxillary lights using signal from the high beams? I have a few ideas, but nothing concrete.
One of the options is a harness with a trigger wire spliced into it that fits into the back of a headlight and plugs into the factory harness. I would route the trigger wire to a relay- the aux lights would be powered direct to the battery.
I have heard that these systems are sensitive, but to my limited knowledge of electrical systems I cant imagine how this (stealing a few milliamps) could cause issues for the light or control module.
Another spitball idea is wiring a current sensitive relay to 1 of the headlight fuses that only triggers when volts at the fuse exceed a certain value (assuming the high beams draw more current than the low beams or drl).
Anyone got any ideas or thoughts on my ideas?
Thanks for your help!
