Alright guys a little history of the car. Me and my dad bought this car is 2015 for 1500$. The issue with the car was that the air pump went out causing the car to be slammed on all 4 air shock. The other issue was that it was parked on the side of the street and have been hit lightly by a drunk driver. So being me and my dad owned our own auto repair shop we were able to fixed all of that. Now the car runs and drives good and we decided to get deeper into the car.

We went ahead and refreshed the motor with new motor mounts, valve cover gasket, new serpentine belts, new belt pulleys + tensioners, oil pan gasket, new spark plugs + wires, new transmission fluids + new filter, new air bag module, cleaned and recharged the AC, + replace some outer cosmetics. so basically brought it back to life.

The issues I had after all of that work was 4 months later I decided to take the car out of town and 400miles in my dash went Red with the SBC.

I went and got the SBC replaced for free due to the extended warranty covering up to 25 years now. The car is fine after that I drove it for 3 years without any issues.

The problems I'm slowly encountering...
my heated seats stopped working...
a few months later my radio unit would shut off and on randomly..
My passenger seat stopped working..
my cd changer door motor started to stay running..
Then my car died so we put another alternator it drove for another 6 months and then my car would randomly lose power like the fuel pump went out. I was able to pull over and park it. Now when I try to start my car will just crank and won't fire. I stopped and let the car sit for 10mins and I goto start the car again it started right up and was able to drive fine for a few days until my battery drained.

Got a new battery and the aux battery the car started up fine and drove fine. While all of this is happening my radio still shuts off randomly, no heated seats, cd door motor stays running (i disconnect the motor wire). I drive the car for another 3 days the battery drains. So I went n got warranty on my batteries and took it to an Automotive electrical specialist. He traced it back to the passenger seat module. He disconnected it So I drove it back the seat doesn't move. I bought the module off ebay to replace but my car battery drained again. This time I upgraded the battery to a $300 battery and once I installed that my passenger seat started working again!!

So now I know its not that module but something else. This time I attempted to drive the car to our shop but now the car is running erratically like sputtering so i pull back to my house And parked it. Tried starting it again and this time it just crank with no start. I waited 1 hour to see and. When I went back in my car have NO POWER. The dash doesn't even come on when I open my door.

So yea The car has been parked for a year now. I bought another replacement rear SAM. I checked all the fuses are ok, checked the fuses on the passenger floorboard and that okay. The only thing left that has any connection to the power that I haven't check is the K57/2 relay. I just pulled that part out. Any clue guys?

 

How many volts was the alternator putting out when the car was running?
What brand of alternator did you replace the old one with?
What codes are present?

 

When it was running it was 14v then after it failed we got a reman (non bosch) from autozone. The voltage reading was at 14v with the reman. But one this slow problems started happening we went and got a 2nd Reman and this time it was slightly under 14v so maybe 13.7, 13.4?

Yea after the car completed died i finally saw that it was reccomend to only use Bosch alternator due to the voltage regulator not being the same with the reman.

originally before I even thought about the getting another rear SAM I was going to buy a Bosch alternator.

 

As for the codes I didn't have them written down but the k57/2 i faintly remember. Now it won't even get any kind of power for me to go in and get some reading.