Lotussuper7 Posted December 12, 2020 Report Share Posted December 12, 2020 I have come up with an alternate wiring arrangement for ecu hold power, using negative switching. Can anyone see a downside to doing it this way? or a reason it simply will not work? Please excuse my primitive Paint skills, lol. Any ideas appreciated. Quote Link to comment Share on other sites More sharing options...
Adamw Posted December 12, 2020 Report Share Posted December 12, 2020 No, its not going to work. To power up the ecu it needs 12V on pin A5, in your diagram that wouldnt happen. Normally the diode is between A5 and the DI, so when you first switch power on it goes through the diode into A5 to power up the ECU - then the ecu an switch on the aux to close the main relay. Secondly, your diagram would also cause a back feed as the aux output has constant 12V on it all the time. Quote Link to comment Share on other sites More sharing options...
Lotussuper7 Posted December 15, 2020 Author Report Share Posted December 15, 2020 Thanks for your reply. I came to the same conclusion after some pondering. Im going to change my wiring to suit the recommended connection. Thank you for having a look. Kind regards Tim Quote Link to comment Share on other sites More sharing options...
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