DPF REGEN LIGHT

[rlievens]

You got me thinking about it and I think I found a flaw in the plan.

Correct me if i'm wrong but the way I see it:
You can make it work so that the DPF light won't come on if you use your heaters.
But you can't make it so that the DPF light will come on when you use your heaters AND the DPF starts to regen at the same time.
So that will be a setback.

What you described can be done with a simple 12v relay I think. Hardest part will be getting the wire from the heater button to the Led and relay

I drew a simple diagram of how I see it:


I'm not that great with electronics so maybe you do know a way to get it to work both ways?
But I don't think you can because you can't know if the DPF is regenerating while the heaters are on because you use the same signal. If DPF regen starts when heaters are on nothing changes on the wire to the heaters. The heaters are on and stay on when DPF regen kicks in.

EDIT: oh and then there's the auto demist function which wont turn on the heater button either which might give a false positive anyway.