1978 FJ40 Hazard Lights

[777sam]

My hazard lights are not working. Turn signals L&R both work but when i pull the hazard switch they stop. I cleaned the contacts on the relay.

Does the relay require a good ground?
(Turn signals flash without the relay grounded.)

Bad hazard switch?

Thanks for your input.
Sam

 

[B y r o n]

Maybe the wiring diagram here will help.

 

[zerotreedelta]

Are they staying on or off? Presumably off? If so, I'd wager something in the switch, as the flasher relay is all upstream.

 

[charliemeyer007]

You might try turning the switch on/off a bunch of times to try and clean the contacts. Actually cleaning all the contacts is a good idea. Checking the wires for continuity is a good plan too. Some designs have a 2nd flasher can for the hazards operation.

 

[45Dougal]

You have a separate 12v feed for the hazards - check your fuse.
Hazard switch connector is very prone to rust - spare the two halves and clean it up.
If your flashers work, then the only culprit is the switch, the switch connector, and the hazard 12v feed.
The relay And bulbs are fine.

 

[777sam]

You have a separate 12v feed for the hazards - check your fuse.
Hazard switch connector is very prone to rust - spare the two halves and clean it up.
If your flashers work, then the only culprit is the switch, the switch connector, and the hazard 12v feed.
The relay And bulbs are fine.

Is it a fuse or fuse wire? Where is it located?