Activating Hazards with a Switch?

[CouldveBoughtaCamry]

I just got a 76 Blazer but the hazard switch on the column is missing including the plastic housing it would screw into. The signals and indicators all work so there is no issue there. I would really wish to avoid replacing a turn signal switch entirely if I could so entertain me for a bit. If in theory a guy had a few relays, toggle switches, and wiring lying around what would be the due course to getting hazards?


I know that the hazard switch is a switch that, when activated connects the hazard flasher (brown wire) to the brake lights, the right front turn signal lamp circuit, and to the left front turn signal lamp circuit.

[Danmcg]

Why not track down the wires in the harness coming out of the bottom of the column and splice in a switch?

[kipps]

The turn signals, hazard lights, and brake lights are all very intimately connected. You can easily find diagrams online for these classic 1970's and 1980's GM turn/hazard/brake systems. Study that diagram until it makes complete sense, and then determine if there's any way to do what you're suggesting. I suspect there isn't.

[1976gmc20]

Well .....

You could splice in a wire between the left and right turn signals with a switch in the middle, then turn on either left or right signal and close the switch and all four will blink

Ask me how I know this: trying to hook up an American trailer to a foreign car with separate brake and turn signals.

[kipps]

Originally Posted by 1976gmc20

You could splice in a wire between the left and right turn signals with a switch in the middle, then turn on either left or right signal and close the switch and all four will blink

You would need two switches; A front cross-over switch, and a rear cross-over switch.

[1976gmc20]

Originally Posted by kipps

You would need two switches; A front cross-over switch, and a rear cross-over switch.

Maybe... I ended up with 6 lights flashing (on either turn signal) when I tried to wire the foreign car brake lights into the trailer turn/brake lights. It was a disaster

[Danmcg]

What year truck are we talking, I'd like to look up the wiring diagram

[kipps]

Originally Posted by Danmcg

What year truck are we talking, I'd like to look up the wiring diagram

The OP mentions a 1976 Blazer in his first post. All these 73-87 trucks should have identical turn/hazard/brake wiring, though.