How-to: Rigid Dually Reverse Lights Install - Picture Heavy
10-14-2014, 09:37 AM
#81
Senior Member
To test the relay you can use these steps:
Step 1, put +12 volts directly on the 87a pin and measure voltage at pin 30. This is the normally closed contact of the relay so the +12 volts should be on that pin when the relay coil isn't energized.
Step 2, you'll want to put +12V on pin 86 and ground on pin 85. While doing this, listen for a "click" inside the relay. It'll make that sound when the coil is energized and tries to move the internal switch from the 87a to the 87 pin.
Step 3, if the coil operated correctly pin 87 should now be connected to pin 30 (as long as you keep +12V on pin 86 and ground on pin 85.) Now you'll put +12V on pin 87 and measure pin 30.
Step 1, put +12 volts directly on the 87a pin and measure voltage at pin 30. This is the normally closed contact of the relay so the +12 volts should be on that pin when the relay coil isn't energized.
Step 2, you'll want to put +12V on pin 86 and ground on pin 85. While doing this, listen for a "click" inside the relay. It'll make that sound when the coil is energized and tries to move the internal switch from the 87a to the 87 pin.
Step 3, if the coil operated correctly pin 87 should now be connected to pin 30 (as long as you keep +12V on pin 86 and ground on pin 85.) Now you'll put +12V on pin 87 and measure pin 30.
10-19-2014, 05:52 PM
#82
Senior Member
Thanks to the OP for the write up. Although I didn't use rigid, I did use some of the ideas and the relay wiring was exactly what I was looking for. For some reason it didn't work for me the first go-round. But the second time I wired everything up she worked. I guess I should have been sober the first time. Lol.
10-19-2014, 06:02 PM
#83
Senior Member
Thanks to the OP for the write up. Although I didn't use rigid, I did use some of the ideas and the relay wiring was exactly what I was looking for. For some reason it didn't work for me the first go-round. But the second time I wired everything up she worked. I guess I should have been sober the first time. Lol.
10-19-2014, 07:03 PM
#84
Senior Member
01-19-2015, 11:24 PM
#85
Junior Member
sorry to stir up an old post... but curiosity has got me asking... when you guys are driving down the road and turn the switch on...im assuming the add on lights (KC or LED) come on, but the main question is.... do the reverse lights in both tail lights come on too????
Thanks!
Thanks!
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KingArthur (01-21-2015)
01-23-2015, 11:22 AM
#89
Junior Member
I was asking because I am making my own harness for these lights and wanted to be sure that they wouldn't turn on. I already have the lights wired to come on in reverse (tapped into the trailer plug). Is there a wire that runs in the drivers door sill that I can get power from instead of running all the way to the back of the truck for reverse light power?
01-23-2015, 01:33 PM
#90
Senior Member
I was asking because I am making my own harness for these lights and wanted to be sure that they wouldn't turn on. I already have the lights wired to come on in reverse (tapped into the trailer plug). Is there a wire that runs in the drivers door sill that I can get power from instead of running all the way to the back of the truck for reverse light power?