Hi,
Bit OT, but it involves Engines, 3 Phase and electronics so I'm sure someone here could help. ;-)
I've bought a new car alarm with remote start and it needs to be wired to the alternator (+12V only when engine running) so it knows when the engine has started.
I'm supposed to wire it to the dashboard battery light but my car updates the instrument panel with a digital signal and not a voltage like the alarm needs (bloody new technology).
The output from the alternator is 3 phase AC and that goes straight into the ECU so I don't have a place to wire my alarm to.
Short of rectifing the AC signal at the alternator is there anywhere on a car that is 12V only when the engine is running?
Cheers,
Michael