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This is the same vehicle -- 2015 Corolla S. I have an Evo-All + Prestige APS-57E. Recently the client took the vehicle to the dealer and the battery was disconnected. After which the remote start no longer worked. I took a look under the dash and the Evo-All's red LED was constantly on. Trying to reset it didn't work as the red LED was always on.

I then connected the Evo to the Fortin program and upon selecting the "Evo-All Options" tab, Setting protection was turned ON (which I never did nor ever use) and once I turned that off to see the current settings, some options I had never selected where turned ON. Specifically, A1 --> A11 where now OFF and D2 --> E2 where now ON, as well as G3, G4, & H2.

Also, with out making any changes to the Evo-All nor flashing it, once I disconnected it from the Fortin program and went back to the vehicle to attempt a reset, the reset worked fine and the red LED wasn't constantly ON.

Any help appreciated. 

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?

After installing a Prestige APS787E alarm w/ my Evo-All bypass module on my 2012 Nissan Rogue (Non-Push2Start), my lock, unlock & trunk buttone on the aftermarket keyfob work but the remote start doesn't work. I updated my Evo-All to the latest firmware & hardware available & flashed it to D2D protocol.

I also programmed the Prestige alarm using the install guide to get the Tach signal via D2D mode. But when I attempt to follow the "Tach rate progarmming" section of the manual, it is clear the alarm might not be getting a tach signal.

Is it possible to hardwire the tach signal to my alarm while using data mode w/ the Evo-All?

Secondly, I test the "ground while running" wire connection btw the Evo-all & Prestige alarm with a multimeter and I get a constant 12V even when trying to remote start. Is this normal? I thought it would/should give me a 0V or ground signal when I attempy to remote start the car.

Lastly, also just noticed that my Prestige key fob arms the aftermarket alarm but locking my doors w/ the OEM Nissan keyfob doesn't. Thus when I arm the car w/ the Prestige keyfob & unlock & open the doors w/ my Nissan key, the siren goes off. Is this normal?