mldc Posted May 14, 2020 Report Share Posted May 14, 2020 Hello everyone, Bits and peaces left in my wiring harness. It's a race car. I don't have ignition key or charging light.. How system works: "master" switch on, PMU powers up, everything else powers up.Question: Can I use Aux 6 (high side) output to trigger alternator to start charging on startup? After alternator starts charging, trigger wire starts to feedback +12V, so I'm a bit afraid, that I will melt aux output.. I just want to know if my theory would work.. Or maybe You have any other suggestion how to trigger the charging without any lights? Alternator, VAG (similar as photo below) 2 wires: constant +12V and +12V to trigger the charging. Thanks in advance Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 14, 2020 Report Share Posted May 14, 2020 It should work provided you have an ecu with high side drives (most plug-ins dont). You will need to put a resistor in line also to simulate the lamp. Something like a 68 or 82ohm 5watt wire wound resistor should do it. Quote Link to comment Share on other sites More sharing options...
mldc Posted May 14, 2020 Author Report Share Posted May 14, 2020 It's Thunder. There is plenty of outputs:) Huge thanks Adam Let's close this one Quote Link to comment Share on other sites More sharing options...
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