Installed an Evo-All + Prestige APS-57E system on a 2015 Corolla S. I also enabled the Evo-Alarm function. Everything works perfectly. But I accidently noticed what I believe could be a bad unit issue...
If I disconnect the datalink connector of the Evo-All, the horn constanly blows.
I even disconnected ALL connectors from the Evo-All and connected just the Evo-All by itself to the 20-pin harness and the horn started blowing again?? I have never seen this happen before and am worried that if the vehicles battery was ever disconnected, the client's horn would just start blowing?
Somehow, the Evo-All has an internal ground signal inside itself? I tried reseting it as well. I also disconneted the horn connector from the steering wheel column and the Evo-All would still send a ground signal to the horn wire and blow it.
Conencting the data-link conector stops this from happening the the Evo works fine again. Is this just a bad unit?