Hazard light system

[mdl90]

Hi,

I would like to install a hazard light system integrated on the dashboard (like below)

I got the hazard switch "cavis" and an additional flashing relay 4 pins.

On my car, there are 2 originals red wires not connected behind the dashboard, one for the radio and the other for power supply to a hazard switch or relay ?

Has anyone added this system ? Or an original wiring on his car ?

It'd be a big help

Thank you,

[Dinoswede]

You can add a 4-way Hazard function, by using a "modern" standard indicator relay from the 90´ies.

For instance something like this:

relä.png (126 KiB) Viewed 13467 times

Note, as the Dinos have only one turn signal warning light, you must add a simple diode bridge, like
in the wiring diagram below. Otherwise this type of indicator relay will not work in our cars.

Dinoswede

[DinoinATL]

I have a series 1 1967 Dino Spider, does my car have a factory installed hazard light switch? I've looked through the manuals and don't believe the car has a hazard light switch but correct me if I am wrong?

[agnatus]

Good morning..
The 1967 Dino Spider Series 1 did not come with a factory-installed hazard light system..

For this switch, I welded a small piece of angled metal next to the choke cable mount under the dashboard and simply mounted it there.

Alternatively, you could also mount the switch in the center console.
It’s very easy to connect to the existing wiring in the Dino Spider.

https://aire-viento.de/Schalter-Relair- ... 7-Kontakte

blinker-plan.JPG (27.49 KiB) Viewed 13382 times

[mdl90]

Thanks for the information.

I have a coupe 2400.
Think the wiring between spider and coupe is different.


Adapting the existing wiring like this is correct according to you ?
Which indicator did you use ? Would like put a discreet one.

[Dinoswede]

As far as I can see, you are on the right track!

But first, a small correction:
In my wiring diagram, I seem to have made a slight mistake,
mixing left and right side of the turn signal system!

The light blue/black wire from the turn signal switch 85 should
be connected to terminal L, and the light blue wire from the
turn signal switch 85 should be connected to terminal R at the
new turn signal relay.

Terminal 30 at the relay should be connected to a fuse carrying
+12 V all the time, not only when the ignition is turned on.
(I am not sure, but I think fuse H is suitible for this purpose.)
This means you can always turn the hazard lights on, even if
the ignition key is not in the car.

Re the turn signal warning light, you can use the original green
warning light, by using the diode bridge I included in the wiring
diagram.

Use something like this:

If you just connect one wire from the left, and one wire from the
right side of the turn signal circuit to the green warning light, all
blinkers will start flashing at the same time, through this wiring!

But, using a simple diode bridge like in the wiring diagram, the
two sides of the turn signal circuit will remain isolated from
each other, and the original warning light will work as it should.

I have made this conversion in my own Spider, and it has been
working without any problems for many years now...


Dinoswede

[agnatus]

This is how I retrofitted my hazard warning switch.

[mdl90]

If I use the original green warning light (67) for the new hazard system, Is there a risk to send an electrical current to the original flashing relay (39) ?

As I understand, do I need a 2 pin diode for connecting 3 wires ? (one for left, one for right and one for green warning)
Can I connect it by crimping ? Or do I need a welding machine ?
Sorry, I have no experience in this area...

[Dinoswede]

I will try to answer your questions:

1. The original blinker relay 39 shall be replaced by the new blinker/Hazard relay.
The old one can be dismantled from the car.

The probably most easy way is using the original blinker relay position under the
dash. You then can re-use the viola/purple, and the azurro/light-blue wires at
this position.

2. The arrancio/orange wires, from + at the old relay, can be re-used if you connect
it to the viola/purple wire, going to the turn signal switch 85. It will then feed the
turn signal switch with +12V, when ignition is on.

3. For the Hazard system, you have to connect a new wire, from the fuse box to the
new relay, terminal 30, finding a fuse carrying +12V all the time, also when the
ignition key is not in the car.

4. The diode bridge for the original green warning light is made of TWO diodes -
one is connected to the azurro/light-blue wire/terminal L, the other to the
azurro-nero/lightblue-black wire/terminal R, at the new relay.

The other side of the two diodes are connected together, and at the very same
connection between the diodes, is the original azurro/light-blue wire (going from
P at the original relay to the green warning light) to be connected.

You must know how to read polarity at the diodes, as the whole idea with the diode
bridge is to separate the left and right blinker sides from each other, and still get
the original green warning light work as from factory.

If you not have access to soldering the diodes in place, you can use a simple screw
terminal, connecting the diodes with the two sides of the blinker system and the
green warning light like this:

Skärmbild 2026-11-06 sockerbit.png (83.44 KiB) Viewed 2580 times

This is how it should be wired:

Dinoswede