I've posted this a few times when it comes up, I guess it's time to make it more permanent.
If you wanted to turn the bumper light into only a running light, you would tap into the hot wire of the front bulb on the corner lights and run them down to the bumper lights, replacing the factory wiring there. However, I don't recommend this, since people facing you head on won't see your signals, and it's probably not legal.
The way that I did it, the bumper lights will be on when the parking lights are on, and will still function as turn signals.
Basically, you're gonna swap out the factory 1156 bumper light bulbs for 1157 dual-filament bulbs. Get the corner light bulb sockets from a 92-95 Civic, either from the junkyard or from a Honda dealer. These are designed for 1157 bulbs and will hook right up to the CRX bumper light housings, at least for 90/91 cars.
So once you've got the new sockets and a fresh pair of 1157 bulbs from the parts store, you can put them in. There are 3 wires on the 1157 sockets, and you only have two wires on the stock bumper lights. Ground goes to ground, and you're going to tap into the front bulb of the corner socket for the third wire.
An 1157 bulb, for those uninformed, has a "bright" and a "dim" side. The factory bumper light hot wire goes to the bright side of the 1157. You just have to twist the wires together temporary like to see which is which, before finalizing the connections. The wire you pulled down from the corner lights will go to the dim side of the 1157.
In this way the turn signal circuit is unchanged, and will still be visible over the less bright running light circuit you've added.
If you wanted to turn the bumper light into only a running light, you would tap into the hot wire of the front bulb on the corner lights and run them down to the bumper lights, replacing the factory wiring there. However, I don't recommend this, since people facing you head on won't see your signals, and it's probably not legal.
The way that I did it, the bumper lights will be on when the parking lights are on, and will still function as turn signals.
Basically, you're gonna swap out the factory 1156 bumper light bulbs for 1157 dual-filament bulbs. Get the corner light bulb sockets from a 92-95 Civic, either from the junkyard or from a Honda dealer. These are designed for 1157 bulbs and will hook right up to the CRX bumper light housings, at least for 90/91 cars.
So once you've got the new sockets and a fresh pair of 1157 bulbs from the parts store, you can put them in. There are 3 wires on the 1157 sockets, and you only have two wires on the stock bumper lights. Ground goes to ground, and you're going to tap into the front bulb of the corner socket for the third wire.
An 1157 bulb, for those uninformed, has a "bright" and a "dim" side. The factory bumper light hot wire goes to the bright side of the 1157. You just have to twist the wires together temporary like to see which is which, before finalizing the connections. The wire you pulled down from the corner lights will go to the dim side of the 1157.
In this way the turn signal circuit is unchanged, and will still be visible over the less bright running light circuit you've added.