I’m trying to connect an accessory to my Hazard Light switch that I want to turn on at the same time as the Hazard Lights.
The Hazard Light has switch connection has 4 leads two that appear to be ground another one that is +12V when the headlights are on to illuminate the switch and another (pink) that is +12V when the Hazard switch is off. This lead drops to 0V on pushing the switch.
I was thinking of using a NC Relay and running it from this pink lead as well as ground to energise the relay, the only problem is energising it in this manner switches the Hazard lights on as the coil in the relay is making a circuit the same as if the Hazard switch is pushed.
Are there any clever ideas to get around this, adding diodes or similar?
Hope I’ve explained it well enough