Max current on Blue alternator signal wire?

[Padowan]

I'm splicing into my loom for a couple if jobs.

Firstly I'm tapping into the blue signal wire from the alternator to delay the power to the ABS system until the engines running and I was thinking that I could also use this wire to trigger a relay to power my Autocom etc.

Does anyone know the max current I could safely draw on the blue wire, could I trigger (not power, that's another wire) the ABS and power a relay on this blue cable?

Any thoughts?

 

[warmshed]

A relay takes very little current to operate so should be no problem. They take approx 130 to 150mA. each as the coils are around 90 ohms.

Anyway nothing stopping you operating other relays with the switched voltage from the first relay.

 

[khpossum]

I have two relays hooked up to the alternator sensing wire at the diag plug, one for the ABS, one for th HD lights. No problems.