Okay random photoshoot

[Violin]

I added the relay on the parking lamp circuit because drroy's circuit was designed for a switching negative system where the power switches on and off with the headlamp switch. Our power (at least the liftback) is always on, even with the ignition off so the lights wouldn't turn off once relays 1 and 2 were triggered. The relay on the parking lamp circuit provides a way for the lights to switch off, because power to them switches off with the stalk.

There's no need for a diode on a switching ground circuit, inductive kick is not an issue. However, the parking lamp circuit is a switching positive circuit so I put a diode there to protect the circuitry. From what I can gather, the high beam indicator relies on a little power being passed through the headlight bulb - I just need the right value resistor to fool it.

I’m gathering this wasn’t an issue on yours?

[sam07yaris]

Originally Posted by Violin

I added the relay on the parking lamp circuit because drroy's circuit was designed for a switching negative system where the power switches on and off with the headlamp switch. Our power (at least the liftback) is always on, even with the ignition off so the lights wouldn't turn off once relays 1 and 2 were triggered. The relay on the parking lamp circuit provides a way for the lights to switch off, because power to them switches off with the stalk.

There's no need for a diode on a switching ground circuit, inductive kick is not an issue. However, the parking lamp circuit is a switching positive circuit so I put a diode there to protect the circuitry. From what I can gather, the high beam indicator relies on a little power being passed through the headlight bulb - I just need the right value resistor to fool it.

I’m gathering this wasn’t an issue on yours?

no not at all bro.